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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestAndDividendIncomeOperatingAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestAndDividendIncomeOperatingAbstract"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestAndDividendIncomeSecuritiesByTaxableStatusAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestAndDividendIncomeSecuritiesByTaxableStatusAbstract"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeSecuritiesTaxable" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestIncomeSecuritiesTaxable"/>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FederalFundsSoldCommercialPaperAndDepositsInBanks" xlink:label="loc_2I0HHGGF8208_ucbi_FederalFundsSoldCommercialPaperAndDepositsInBanks"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpenseAbstract" xml:lang="en-US">Interest expense:</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepositsAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DepositsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepositsAbstract" xml:lang="en-US">Deposits [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepositsAbstract" xml:lang="en-US">Deposits:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DepositsAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DepositsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseNegotiableOrderOfWithdrawalNOWDeposits" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestExpenseNegotiableOrderOfWithdrawalNOWDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpenseNegotiableOrderOfWithdrawalNOWDeposits" xml:lang="en-US">Interest Expense, Negotiable Order of Withdrawal (NOW) Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpenseNegotiableOrderOfWithdrawalNOWDeposits" xml:lang="en-US">NOW</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InterestExpenseNegotiableOrderOfWithdrawalNOWDeposits" xlink:to="lab_4K2JJIIH0420_us-gaap_InterestExpenseNegotiableOrderOfWithdrawalNOWDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseMoneyMarketDeposits" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseMoneyMarketDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseMoneyMarketDeposits" xml:lang="en-US">Interest Expense, Money Market Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseMoneyMarketDeposits" xml:lang="en-US">Money market deposit interest expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseMoneyMarketDeposits" xml:lang="en-US">Money market</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseMoneyMarketDeposits" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseMoneyMarketDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseSavingsDeposits" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestExpenseSavingsDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpenseSavingsDeposits" xml:lang="en-US">Interest Expense, Savings Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpenseSavingsDeposits" xml:lang="en-US">Savings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InterestExpenseSavingsDeposits" xlink:to="lab_4K2JJIIH0420_us-gaap_InterestExpenseSavingsDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseTimeDeposits" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseTimeDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseTimeDeposits" xml:lang="en-US">Interest Expense, Time Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseTimeDeposits" xml:lang="en-US">Time deposit interest expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseTimeDeposits" xml:lang="en-US">Time</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseTimeDeposits" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseTimeDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseDeposits" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestExpenseDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpenseDeposits" xml:lang="en-US">Interest Expense, Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpenseDeposits" xml:lang="en-US">Total deposit interest expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InterestExpenseDeposits" xlink:to="lab_4K2JJIIH0420_us-gaap_InterestExpenseDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseShortTermBorrowings" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseShortTermBorrowings"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseShortTermBorrowings" xml:lang="en-US">Interest Expense, Short-term Borrowings, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseShortTermBorrowings" xml:lang="en-US">Short-term borrowings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseShortTermBorrowings" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseShortTermBorrowings"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm" xml:lang="en-US">Interest Expense, Federal Home Loan Bank and Federal Reserve Bank Advances, Short-term</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm" xml:lang="en-US">Federal Home Loan Bank advances</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm" xlink:to="lab_4K2JJIIH0420_us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseLongTermDebt" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseLongTermDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseLongTermDebt" xml:lang="en-US">Interest Expense, Long-term Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseLongTermDebt" xml:lang="en-US">Long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseLongTermDebt" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseLongTermDebt"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpense" xml:lang="en-US">Interest Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpense" xml:lang="en-US">Interest expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestExpense" xml:lang="en-US">Total interest expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InterestExpense" xlink:to="lab_4K2JJIIH0420_us-gaap_InterestExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestIncomeExpenseNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestIncomeExpenseNet" xml:lang="en-US">Interest Income (Expense), Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestIncomeExpenseNet" xml:lang="en-US">Net interest revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InterestIncomeExpenseNet" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InterestIncomeExpenseNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProvisionForLoanAndLeaseLosses" xlink:label="loc_2I0HHGGF8208_us-gaap_ProvisionForLoanAndLeaseLosses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ProvisionForLoanAndLeaseLosses" xml:lang="en-US">Provision for Loan and Lease Losses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ProvisionForLoanAndLeaseLosses" xml:lang="en-US">Provision</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ProvisionForLoanAndLeaseLosses" xml:lang="en-US">(Release of) provision for credit losses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ProvisionForLoanAndLeaseLosses" xlink:to="lab_4K2JJIIH0420_us-gaap_ProvisionForLoanAndLeaseLosses"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xml:lang="en-US">Interest Income (Expense), after Provision for Loan Loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xml:lang="en-US">Net interest revenue after provision for credit losses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestIncomeAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_NoninterestIncomeAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NoninterestIncomeAbstract" xml:lang="en-US">Noninterest Income [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NoninterestIncomeAbstract" xml:lang="en-US">Fee revenue:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NoninterestIncomeAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_NoninterestIncomeAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FeesAndCommissionsDepositorAccounts" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FeesAndCommissionsDepositorAccounts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FeesAndCommissionsDepositorAccounts" xml:lang="en-US">Fees and Commissions, Depositor Accounts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FeesAndCommissionsDepositorAccounts" xml:lang="en-US">Shared service fees from subsidiaries</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FeesAndCommissionsDepositorAccounts" xml:lang="en-US">Service charges and fees</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FeesAndCommissionsDepositorAccounts" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FeesAndCommissionsDepositorAccounts"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FeesAndCommissionsMortgageBanking" xlink:label="loc_2I0HHGGF8208_us-gaap_FeesAndCommissionsMortgageBanking"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FeesAndCommissionsMortgageBanking" xml:lang="en-US">Fees and Commissions, Mortgage Banking</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FeesAndCommissionsMortgageBanking" xml:lang="en-US">Mortgage loan and other related fees</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FeesAndCommissionsMortgageBanking" xlink:to="lab_4K2JJIIH0420_us-gaap_FeesAndCommissionsMortgageBanking"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BrokerageCommissionsRevenue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BrokerageCommissionsRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BrokerageCommissionsRevenue" xml:lang="en-US">Brokerage Commissions Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BrokerageCommissionsRevenue" xml:lang="en-US">Brokerage fees</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BrokerageCommissionsRevenue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BrokerageCommissionsRevenue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfLoansAndLeases" xlink:label="loc_2I0HHGGF8208_us-gaap_GainLossOnSaleOfLoansAndLeases"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_GainLossOnSaleOfLoansAndLeases" xml:lang="en-US">Gain (Loss) on Sale of Loans and Leases</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_GainLossOnSaleOfLoansAndLeases" xml:lang="en-US">Gains from sales of SBA/USDA loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_GainLossOnSaleOfLoansAndLeases" xml:lang="en-US">Gains from sales of government guaranteed loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_GainLossOnSaleOfLoansAndLeases" xlink:to="lab_4K2JJIIH0420_us-gaap_GainLossOnSaleOfLoansAndLeases"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfSecuritiesNet" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_GainLossOnSaleOfSecuritiesNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GainLossOnSaleOfSecuritiesNet" xml:lang="en-US">Gain (Loss) on Sale of Securities, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GainLossOnSaleOfSecuritiesNet" xml:lang="en-US">Securities gains, net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GainLossOnSaleOfSecuritiesNet" xml:lang="en-US">Net gains on sales of securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GainLossOnSaleOfSecuritiesNet" xml:lang="en-US">Securities gains, net</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_GainLossOnSaleOfSecuritiesNet" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_GainLossOnSaleOfSecuritiesNet"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FeesRevenueLossFromPrepaymentOfDebt" xlink:label="loc_2I0HHGGF8208_ucbi_FeesRevenueLossFromPrepaymentOfDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FeesRevenueLossFromPrepaymentOfDebt" xml:lang="en-US">Fees Revenue Loss From Prepayment Of Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FeesRevenueLossFromPrepaymentOfDebt" xml:lang="en-US">Loss on prepayment of debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FeesRevenueLossFromPrepaymentOfDebt" xml:lang="en-US">Losses on prepayment of borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FeesRevenueLossFromPrepaymentOfDebt" xml:lang="en-US">Aggregate revenue generated in form of interest and fees, amounts in connection with loss from prepayment of debts.</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FeesRevenueLossFromPrepaymentOfDebt" xml:lang="en-US">Losses on prepayment of borrowings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FeesRevenueLossFromPrepaymentOfDebt" xlink:to="lab_4K2JJIIH0420_ucbi_FeesRevenueLossFromPrepaymentOfDebt"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestIncomeOther" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_NoninterestIncomeOther"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NoninterestIncomeOther" xml:lang="en-US">Noninterest Income, Other</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NoninterestIncomeOther" xml:lang="en-US">Loan interest revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NoninterestIncomeOther" xml:lang="en-US">Other</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_NoninterestIncomeOther" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_NoninterestIncomeOther"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestIncome" xlink:label="loc_2I0HHGGF8208_us-gaap_NoninterestIncome"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NoninterestIncome" xml:lang="en-US">Noninterest Income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NoninterestIncome" xml:lang="en-US">Total fee revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NoninterestIncome" xlink:to="lab_4K2JJIIH0420_us-gaap_NoninterestIncome"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_Revenues"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_Revenues" xml:lang="en-US">Actual Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_Revenues" xml:lang="en-US">Total income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_Revenues" xml:lang="en-US">Total revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_Revenues" xml:lang="en-US">Total revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_Revenues" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_Revenues"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_OperatingExpensesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingExpensesAbstract" xml:lang="en-US">Operating Expenses [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingExpensesAbstract" xml:lang="en-US">Operating expenses:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_OperatingExpensesAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_OperatingExpensesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LaborAndRelatedExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LaborAndRelatedExpense" xml:lang="en-US">Labor and Related Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LaborAndRelatedExpense" xml:lang="en-US">Salaries and employee benefits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LaborAndRelatedExpense" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LaborAndRelatedExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OccupancyNet" xlink:label="loc_2I0HHGGF8208_us-gaap_OccupancyNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OccupancyNet" xml:lang="en-US">Occupancy, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OccupancyNet" xml:lang="en-US">Occupancy</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_OccupancyNet" xlink:to="lab_4K2JJIIH0420_us-gaap_OccupancyNet"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommunicationsAndEquipment" xlink:label="loc_I9G01G3G9932937HF776_ucbi_CommunicationsAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommunicationsAndEquipment" xml:lang="en-US">Communications and Equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommunicationsAndEquipment" xml:lang="en-US">Communications and equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommunicationsAndEquipment" xml:lang="en-US">Represents amount of communications and equipment expenses.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_CommunicationsAndEquipment" xlink:to="lab_K1I23I5I1154159JH998_ucbi_CommunicationsAndEquipment"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FdicAssessmentsAndOtherRegulatoryCharges" xlink:label="loc_2I0HHGGF8208_ucbi_FdicAssessmentsAndOtherRegulatoryCharges"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FdicAssessmentsAndOtherRegulatoryCharges" xml:lang="en-US">FDIC Assessments and Other Regulatory Charges</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FdicAssessmentsAndOtherRegulatoryCharges" xml:lang="en-US">FDIC assessments and other regulatory charges</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FdicAssessmentsAndOtherRegulatoryCharges" xml:lang="en-US">Represents amount of FDIC assessments and other regulatory expenses.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FdicAssessmentsAndOtherRegulatoryCharges" xlink:to="lab_4K2JJIIH0420_ucbi_FdicAssessmentsAndOtherRegulatoryCharges"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ProfessionalFees"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProfessionalFees" xml:lang="en-US">Professional Fees</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProfessionalFees" xml:lang="en-US">Professional fees</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ProfessionalFees" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ProfessionalFees"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SuppliesAndPostageExpense" xlink:label="loc_2I0HHGGF8208_us-gaap_SuppliesAndPostageExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SuppliesAndPostageExpense" xml:lang="en-US">Supplies and Postage Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SuppliesAndPostageExpense" xml:lang="en-US">Postage, printing and supplies</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SuppliesAndPostageExpense" xlink:to="lab_4K2JJIIH0420_us-gaap_SuppliesAndPostageExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketingAndAdvertisingExpense" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_MarketingAndAdvertisingExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MarketingAndAdvertisingExpense" xml:lang="en-US">Marketing and Advertising Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MarketingAndAdvertisingExpense" xml:lang="en-US">Advertising and public relations</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_MarketingAndAdvertisingExpense" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_MarketingAndAdvertisingExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_AmortizationOfIntangibleAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AmortizationOfIntangibleAssets" xml:lang="en-US">Amortization expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AmortizationOfIntangibleAssets" xml:lang="en-US">Amortization expense on finite-lived intangible assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AmortizationOfIntangibleAssets" xml:lang="en-US">Amortization of intangibles</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AmortizationOfIntangibleAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_AmortizationOfIntangibleAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ForeclosedRealEstateExpense" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ForeclosedRealEstateExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ForeclosedRealEstateExpense" xml:lang="en-US">Foreclosed Real Estate Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ForeclosedRealEstateExpense" xml:lang="en-US">Foreclosed property</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ForeclosedRealEstateExpense" xml:lang="en-US">Total foreclosed property expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ForeclosedRealEstateExpense" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ForeclosedRealEstateExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationAcquisitionRelatedCosts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquisitionRelatedCosts" xml:lang="en-US">Business Combination, Acquisition Related Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquisitionRelatedCosts" xml:lang="en-US">Merger related costs excluded from pro forma information</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquisitionRelatedCosts" xml:lang="en-US">Merger-related and other charges</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquisitionRelatedCosts" xml:lang="en-US">Merger related costs excluded from pro forma information</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationAcquisitionRelatedCosts" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquisitionRelatedCosts"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNoninterestExpense" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OtherNoninterestExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherNoninterestExpense" xml:lang="en-US">Other Noninterest Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherNoninterestExpense" xml:lang="en-US">Other expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherNoninterestExpense" xml:lang="en-US">Other</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OtherNoninterestExpense" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OtherNoninterestExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestExpense" xlink:label="loc_2I0HHGGF8208_us-gaap_NoninterestExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NoninterestExpense" xml:lang="en-US">Noninterest Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NoninterestExpense" xml:lang="en-US">Total expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NoninterestExpense" xml:lang="en-US">Total operating expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NoninterestExpense" xml:lang="en-US">Total operating expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NoninterestExpense" xlink:to="lab_4K2JJIIH0420_us-gaap_NoninterestExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xml:lang="en-US">Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xml:lang="en-US">Income before income taxes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xml:lang="en-US">Net income, Before-tax Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xml:lang="en-US">Income before equity in undistributed (loss) earnings of subsidiaries</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xml:lang="en-US">Income before income taxes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xml:lang="en-US">Income tax expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_2I0HHGGF8208_us-gaap_IncomeTaxExpenseBenefit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US">Income tax benefit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US">Income tax expense</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_EarningsPerShareBasic" xml:lang="en-US">Basic</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EarningsPerShareDiluted" xml:lang="en-US">Diluted</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted [Abstract]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xml:lang="en-US">Weighted average common shares:</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Basic (in shares)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Basic</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Diluted (in shares)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Diluted</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xml:lang="en-US">Consolidated Statement of Comprehensive Income (Loss) [Abstract]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeLossFromContinuingOperations" xml:lang="en-US">Net income (loss) from continuing operations</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xml:lang="en-US">Other comprehensive income (loss):</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax" xml:lang="en-US">Net actuarial loss on defined benefit pension plan, Before-tax Amount</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent" xml:lang="en-US">Net defined benefit pension plan activity, Before-tax Amount</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax" xml:lang="en-US">Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax" xml:lang="en-US">Net defined benefit pension plan activity, Tax (Expense) Benefit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax" xml:lang="en-US">Net defined benefit pension plan activity, Tax (Expense) Benefit</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_2I0HHGGF8208_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent" xml:lang="en-US">Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent" xml:lang="en-US">Net defined benefit pension plan activity, Net of Tax Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent" xml:lang="en-US">Net defined benefit pension plan activity, Net of Tax Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent" xml:lang="en-US">Net defined benefit pension plan activity, Net of Tax Amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent" xlink:to="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" xml:lang="en-US">Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" xml:lang="en-US">Total other comprehensive income (loss), Before-tax Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" xml:lang="en-US">Total other comprehensive loss, Before-tax Amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1" xlink:label="loc_2I0HHGGF8208_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1" xml:lang="en-US">Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1" xml:lang="en-US">Total other comprehensive loss, Tax (Expense) Benefit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1" xml:lang="en-US">Total other comprehensive income (loss), Tax (Expense) Benefit</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xml:lang="en-US">Other comprehensive income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xml:lang="en-US">Total other comprehensive income (loss), Net of Tax Amount</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ComprehensiveIncomeLossBeforeTax" xlink:label="loc_2I0HHGGF8208_ucbi_ComprehensiveIncomeLossBeforeTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ComprehensiveIncomeLossBeforeTax" xml:lang="en-US">Comprehensive Income Loss Before Tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ComprehensiveIncomeLossBeforeTax" xml:lang="en-US">Comprehensive income, Before-tax Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ComprehensiveIncomeLossBeforeTax" xml:lang="en-US">Comprehensive income (loss), Before-tax Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ComprehensiveIncomeLossBeforeTax" xml:lang="en-US">Represents amount of comprehensive income (loss) before tax.</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ComprehensiveIncomeLossTax" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ComprehensiveIncomeLossTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ComprehensiveIncomeLossTax" xml:lang="en-US">Comprehensive Income Loss Tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ComprehensiveIncomeLossTax" xml:lang="en-US">Comprehensive income (loss), Tax (Expense) Benefit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ComprehensiveIncomeLossTax" xml:lang="en-US">Represents amount of comprehensive income loss tax.</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ComprehensiveIncomeLossTax" xml:lang="en-US">Comprehensive income, Tax (Expense) Benefit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ComprehensiveIncomeLossTax" xml:lang="en-US">Comprehensive income (loss), Tax (Expense) Benefit</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_2I0HHGGF8208_us-gaap_ComprehensiveIncomeNetOfTax"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ComprehensiveIncomeNetOfTax" xml:lang="en-US">Comprehensive income, Net of Tax Amount</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StatementOfFinancialPositionAbstract" xml:lang="en-US">Balance Sheet</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StatementTable" xml:lang="en-US">Statement [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StatementTable" xlink:to="lab_4K2JJIIH0420_us-gaap_StatementTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_StatementClassOfStockAxis"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ClassOfStockDomain" xml:lang="en-US">Class of Stock [Domain]</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestBearingDepositsInBanks" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestBearingDepositsInBanks"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestBearingDepositsInBanks" xml:lang="en-US">Interest-bearing Deposits in Banks and Other Financial Institutions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestBearingDepositsInBanks" xml:lang="en-US">Interest-bearing deposits in banks</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InterestBearingDepositsInBanks" xlink:to="lab_4K2JJIIH0420_us-gaap_InterestBearingDepositsInBanks"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashCashEquivalentsAndFederalFundsSold" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CashCashEquivalentsAndFederalFundsSold"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CashCashEquivalentsAndFederalFundsSold" xml:lang="en-US">Cash, Cash Equivalents, and Federal Funds Sold</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CashCashEquivalentsAndFederalFundsSold" xml:lang="en-US">Cash</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CashCashEquivalentsAndFederalFundsSold" xml:lang="en-US">Cash and cash equivalents</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CashCashEquivalentsAndFederalFundsSold" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CashCashEquivalentsAndFederalFundsSold"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecurities" xml:lang="en-US">Available-for-sale Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecurities" xml:lang="en-US">Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecurities" xml:lang="en-US">Securities available-for-sale</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecurities" xml:lang="en-US">Fair Value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecurities" xlink:to="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_HeldToMaturitySecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_HeldToMaturitySecurities" xml:lang="en-US">Held-to-maturity Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_HeldToMaturitySecurities" xml:lang="en-US">Securities held to maturity, Carrying Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_HeldToMaturitySecurities" xml:lang="en-US">Securities held-to-maturity (fair value $321,276 and $333,170)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_HeldToMaturitySecurities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_HeldToMaturitySecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage" xml:lang="en-US">Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Mortgage</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage" xml:lang="en-US">Loans held for sale (includes $26,252 and $27,891 at fair value)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage" xlink:to="lab_4K2JJIIH0420_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xml:lang="en-US">Loans Outstanding, Ending Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xml:lang="en-US">Total loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xml:lang="en-US">Loans, net of unearned income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xml:lang="en-US">Loans Outstanding, Ending Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableAllowance" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableAllowance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableAllowance" xml:lang="en-US">Loans and Leases Receivable, Allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableAllowance" xml:lang="en-US">Allowance for Loan Losses,Total ending allowance balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableAllowance" xml:lang="en-US">Balance beginning of period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableAllowance" xml:lang="en-US">Balance end of period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableAllowance" xml:lang="en-US">Less allowance for loan losses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableAllowance" xlink:to="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableAllowance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetReportedAmount" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableNetReportedAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetReportedAmount" xml:lang="en-US">Loans, net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetReportedAmount" xml:lang="en-US">Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetReportedAmount" xml:lang="en-US">Loans, net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetReportedAmount" xml:lang="en-US">Loans, net</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableNetReportedAmount" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableNetReportedAmount"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property, Plant and Equipment, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentNet" xml:lang="en-US">Premises and equipment, net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentNet" xml:lang="en-US">Premises and equipment, net</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentNet" xlink:to="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BankOwnedLifeInsurance" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BankOwnedLifeInsurance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BankOwnedLifeInsurance" xml:lang="en-US">Bank Owned Life Insurance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BankOwnedLifeInsurance" xml:lang="en-US">Bank owned life insurance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BankOwnedLifeInsurance" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BankOwnedLifeInsurance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedInvestmentIncomeReceivable" xlink:label="loc_2I0HHGGF8208_us-gaap_AccruedInvestmentIncomeReceivable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AccruedInvestmentIncomeReceivable" xml:lang="en-US">Accrued Investment Income Receivable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AccruedInvestmentIncomeReceivable" xml:lang="en-US">Accrued interest receivable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AccruedInvestmentIncomeReceivable" xlink:to="lab_4K2JJIIH0420_us-gaap_AccruedInvestmentIncomeReceivable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsLiabilitiesNet" xml:lang="en-US">Deferred Tax Assets, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsLiabilitiesNet" xml:lang="en-US">Net deferred tax asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsLiabilitiesNet" xml:lang="en-US">Net deferred tax asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsLiabilitiesNet" xml:lang="en-US">Net deferred tax asset</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssets" xml:lang="en-US">Derivative Asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssets" xml:lang="en-US">Derivative financial instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssets" xml:lang="en-US">Derivatives, Net Asset Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IntangibleAssetsNetIncludingGoodwill" xml:lang="en-US">Intangible Assets, Net (Including Goodwill)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IntangibleAssetsNetIncludingGoodwill" xml:lang="en-US">Goodwill and other intangible assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IntangibleAssetsNetIncludingGoodwill" xml:lang="en-US">Total goodwill and other intangible assets, net</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IntangibleAssetsNetIncludingGoodwill" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_OtherAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherAssets" xml:lang="en-US">Other Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherAssets" xml:lang="en-US">Other assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_OtherAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_OtherAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_Assets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_Assets" xml:lang="en-US">Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_Assets" xml:lang="en-US">Total assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_Assets" xml:lang="en-US">Total assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_Assets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_Assets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US">Liabilities and Equity [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US">The contract amount of off-balance sheet instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US">Liabilities and Shareholders' Equity</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LiabilitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesAbstract" xml:lang="en-US">Liabilities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesAbstract" xml:lang="en-US">Liabilities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LiabilitiesAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DemandDepositAccounts" xlink:label="loc_2I0HHGGF8208_us-gaap_DemandDepositAccounts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DemandDepositAccounts" xml:lang="en-US">Demand Deposit Accounts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DemandDepositAccounts" xml:lang="en-US">Demand</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DemandDepositAccounts" xlink:to="lab_4K2JJIIH0420_us-gaap_DemandDepositAccounts"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepositsNegotiableOrderOfWithdrawalNOW" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DepositsNegotiableOrderOfWithdrawalNOW"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepositsNegotiableOrderOfWithdrawalNOW" xml:lang="en-US">Deposits, Negotiable Order of Withdrawal (NOW)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepositsNegotiableOrderOfWithdrawalNOW" xml:lang="en-US">NOW</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DepositsNegotiableOrderOfWithdrawalNOW" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DepositsNegotiableOrderOfWithdrawalNOW"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepositsMoneyMarketDeposits" xlink:label="loc_2I0HHGGF8208_us-gaap_DepositsMoneyMarketDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DepositsMoneyMarketDeposits" xml:lang="en-US">Deposits, Money Market Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DepositsMoneyMarketDeposits" xml:lang="en-US">Money market</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DepositsMoneyMarketDeposits" xlink:to="lab_4K2JJIIH0420_us-gaap_DepositsMoneyMarketDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepositsSavingsDeposits" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DepositsSavingsDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepositsSavingsDeposits" xml:lang="en-US">Deposits, Savings Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepositsSavingsDeposits" xml:lang="en-US">Savings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DepositsSavingsDeposits" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DepositsSavingsDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDeposits" xlink:label="loc_2I0HHGGF8208_us-gaap_TimeDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDeposits" xml:lang="en-US">Time Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDeposits" xml:lang="en-US">Time</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDeposits" xml:lang="en-US">Time deposits (excluding brokered time deposits)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDeposits" xml:lang="en-US">Total</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TimeDeposits" xlink:to="lab_4K2JJIIH0420_us-gaap_TimeDeposits"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_Brokered" xlink:label="loc_I9G01G3G9932937HF776_ucbi_Brokered"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_Brokered" xml:lang="en-US">Brokered</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_Brokered" xml:lang="en-US">Brokered</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_Brokered" xml:lang="en-US">Represents amount of third-party deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_Brokered" xlink:to="lab_K1I23I5I1154159JH998_ucbi_Brokered"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Deposits" xlink:label="loc_2I0HHGGF8208_us-gaap_Deposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_Deposits" xml:lang="en-US">Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_Deposits" xml:lang="en-US">Deposits, Carrying Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_Deposits" xml:lang="en-US">Total deposits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_Deposits" xlink:to="lab_4K2JJIIH0420_us-gaap_Deposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShortTermBorrowings" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShortTermBorrowings"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShortTermBorrowings" xml:lang="en-US">Short-term Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShortTermBorrowings" xml:lang="en-US">Short-term borrowings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShortTermBorrowings" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShortTermBorrowings"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvancesFromFederalHomeLoanBanks" xlink:label="loc_2I0HHGGF8208_us-gaap_AdvancesFromFederalHomeLoanBanks"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AdvancesFromFederalHomeLoanBanks" xml:lang="en-US">Advances from Federal Home Loan Banks</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AdvancesFromFederalHomeLoanBanks" xml:lang="en-US">Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AdvancesFromFederalHomeLoanBanks" xml:lang="en-US">Federal Home Loan Bank advances</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AdvancesFromFederalHomeLoanBanks" xml:lang="en-US">Total</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AdvancesFromFederalHomeLoanBanks" xlink:to="lab_4K2JJIIH0420_us-gaap_AdvancesFromFederalHomeLoanBanks"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LongTermDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LongTermDebt" xml:lang="en-US">Long-term Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LongTermDebt" xml:lang="en-US">Long-term debt, Carrying Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LongTermDebt" xml:lang="en-US">Long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LongTermDebt" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LongTermDebt"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilities" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilities" xml:lang="en-US">Derivative Liability</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilities" xml:lang="en-US">Derivative financial instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilities" xml:lang="en-US">Derivative liability</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilities" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedLiabilitiesAndOtherLiabilities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccruedLiabilitiesAndOtherLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccruedLiabilitiesAndOtherLiabilities" xml:lang="en-US">Accrued Liabilities and Other Liabilities, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccruedLiabilitiesAndOtherLiabilities" xml:lang="en-US">Other liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccruedLiabilitiesAndOtherLiabilities" xml:lang="en-US">Accrued expenses and other liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AccruedLiabilitiesAndOtherLiabilities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AccruedLiabilitiesAndOtherLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_2I0HHGGF8208_us-gaap_Liabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_Liabilities" xml:lang="en-US">Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_Liabilities" xml:lang="en-US">Total liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_Liabilities" xml:lang="en-US">Total liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_Liabilities" xlink:to="lab_4K2JJIIH0420_us-gaap_Liabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommitmentsAndContingencies"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommitmentsAndContingencies" xml:lang="en-US">Commitments and Contingencies</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommitmentsAndContingencies" xml:lang="en-US">Commitments and contingencies</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CommitmentsAndContingencies" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CommitmentsAndContingencies"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_StockholdersEquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockholdersEquityAbstract" xml:lang="en-US">Stockholders' Equity Attributable to Parent [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockholdersEquityAbstract" xml:lang="en-US">Shareholders' equity:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockholdersEquityAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_StockholdersEquityAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommonStockValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockValue" xml:lang="en-US">Common Stock, Value, Issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockValue" xml:lang="en-US">Sale of qualifying common equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockValue" xml:lang="en-US">Common stock, $1 par value; 150,000,000 shares authorized; 77,579,561 and 70,899,114 shares issued and outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CommonStockValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CommonStockValue"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommonStocksIssuable" xlink:label="loc_2I0HHGGF8208_ucbi_CommonStocksIssuable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStocksIssuable" xml:lang="en-US">Common Stocks Issuable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStocksIssuable" xml:lang="en-US">Common stock issuable; 607,869 and 519,874 shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStocksIssuable" xml:lang="en-US">Represents amount of carrying amount of common stock issuable.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_CommonStocksIssuable" xlink:to="lab_4K2JJIIH0420_ucbi_CommonStocksIssuable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AdditionalPaidInCapital"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AdditionalPaidInCapital" xml:lang="en-US">Additional Paid in Capital</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AdditionalPaidInCapital" xml:lang="en-US">Capital surplus</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AdditionalPaidInCapital" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AdditionalPaidInCapital"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_2I0HHGGF8208_us-gaap_RetainedEarningsAccumulatedDeficit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Accumulated deficit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Accumulated deficit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="lab_4K2JJIIH0420_us-gaap_RetainedEarningsAccumulatedDeficit"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated other comprehensive loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated other comprehensive loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US">Accumulated other comprehensive loss</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_2I0HHGGF8208_us-gaap_StockholdersEquity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockholdersEquity" xml:lang="en-US">Stockholders' Equity Attributable to Parent</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockholdersEquity" xml:lang="en-US">Shareholders' equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockholdersEquity" xml:lang="en-US">Total shareholders' equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockholdersEquity" xml:lang="en-US">Beginning balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockholdersEquity" xml:lang="en-US">Ending balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockholdersEquity" xlink:to="lab_4K2JJIIH0420_us-gaap_StockholdersEquity"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LiabilitiesAndStockholdersEquity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesAndStockholdersEquity" xml:lang="en-US">Liabilities and Equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesAndStockholdersEquity" xml:lang="en-US">Total liabilities and shareholders' equity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesAndStockholdersEquity" xml:lang="en-US">Total liabilities and shareholders' equity</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesAndStockholdersEquity"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesFairValue" xlink:label="loc_2I0HHGGF8208_us-gaap_HeldToMaturitySecuritiesFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_HeldToMaturitySecuritiesFairValue" xml:lang="en-US">Held-to-maturity Securities, Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_HeldToMaturitySecuritiesFairValue" xml:lang="en-US">Fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_HeldToMaturitySecuritiesFairValue" xml:lang="en-US">Securities held to maturity, fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_HeldToMaturitySecuritiesFairValue" xml:lang="en-US">Fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_HeldToMaturitySecuritiesFairValue" xml:lang="en-US">Held-To-Maturity, Fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_HeldToMaturitySecuritiesFairValue" xlink:to="lab_4K2JJIIH0420_us-gaap_HeldToMaturitySecuritiesFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgagesHeldForSaleFairValueDisclosure" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_MortgagesHeldForSaleFairValueDisclosure"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MortgagesHeldForSaleFairValueDisclosure" xml:lang="en-US">Mortgages Held-for-sale, Fair Value Disclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MortgagesHeldForSaleFairValueDisclosure" xml:lang="en-US">Mortgage loans held for sale</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MortgagesHeldForSaleFairValueDisclosure" xml:lang="en-US">Mortgage loans held for sale, fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MortgagesHeldForSaleFairValueDisclosure" xml:lang="en-US">Loans held for sale</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_MortgagesHeldForSaleFairValueDisclosure" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_MortgagesHeldForSaleFairValueDisclosure"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_2I0HHGGF8208_us-gaap_CommonStockParOrStatedValuePerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CommonStockParOrStatedValuePerShare" xml:lang="en-US">Common stock, par value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CommonStockParOrStatedValuePerShare" xml:lang="en-US">Common stock, par value (in dollars per share)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="lab_4K2JJIIH0420_us-gaap_CommonStockParOrStatedValuePerShare"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommonStockSharesAuthorized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockSharesAuthorized" xml:lang="en-US">Common Stock, Shares Authorized</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockSharesAuthorized" xml:lang="en-US">Common stock, shares authorized</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CommonStockSharesAuthorized" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CommonStockSharesAuthorized"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_2I0HHGGF8208_us-gaap_CommonStockSharesIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CommonStockSharesIssued" xml:lang="en-US">Common stock, shares issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CommonStockSharesIssued" xml:lang="en-US">Common stock, shares issued</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CommonStockSharesIssued" xlink:to="lab_4K2JJIIH0420_us-gaap_CommonStockSharesIssued"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommonStockSharesOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockSharesOutstanding" xml:lang="en-US">Common stock, shares outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockSharesOutstanding" xml:lang="en-US">Common stock, shares outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CommonStockSharesOutstanding" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CommonStockSharesOutstanding"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommonStockIssuableShares" xlink:label="loc_2I0HHGGF8208_ucbi_CommonStockIssuableShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStockIssuableShares" xml:lang="en-US">Common stock issuable, shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStockIssuableShares" xml:lang="en-US">Common stock issuable, shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStockIssuableShares" xml:lang="en-US">Represents number of shares of common stock issuable.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_CommonStockIssuableShares" xlink:to="lab_4K2JJIIH0420_ucbi_CommonStockIssuableShares"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_StatementOfStockholdersEquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StatementOfStockholdersEquityAbstract" xml:lang="en-US">Consolidated Statement of Changes in Shareholders' Equity [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_StatementOfStockholdersEquityAbstract"/>










<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_StatementEquityComponentsAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StatementEquityComponentsAxis" xml:lang="en-US">Equity Components [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StatementEquityComponentsAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_StatementEquityComponentsAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommonStockMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockMember" xml:lang="en-US">Common Stock [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockMember" xml:lang="en-US">Common Stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CommonStockMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CommonStockMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommonStockIssuableMember" xlink:label="loc_2I0HHGGF8208_ucbi_CommonStockIssuableMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStockIssuableMember" xml:lang="en-US">Common Stock Issuable [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStockIssuableMember" xml:lang="en-US">Common Stock Issuable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStockIssuableMember" xml:lang="en-US">Represents information of common stock issuable.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_CommonStockIssuableMember" xlink:to="lab_4K2JJIIH0420_ucbi_CommonStockIssuableMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AdditionalPaidInCapitalMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AdditionalPaidInCapitalMember" xml:lang="en-US">Additional Paid In Capital [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AdditionalPaidInCapitalMember" xml:lang="en-US">Capital Surplus</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AdditionalPaidInCapitalMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AdditionalPaidInCapitalMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_2I0HHGGF8208_us-gaap_RetainedEarningsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RetainedEarningsMember" xml:lang="en-US">Retained Earnings [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_RetainedEarningsMember" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_RetainedEarningsMember" xlink:to="lab_4K2JJIIH0420_us-gaap_RetainedEarningsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US">Accumulated Other Comprehensive Income [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US">Accumulated Other Comprehensive (Loss) Income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_EquityComponentDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_EquityComponentDomain" xml:lang="en-US">Equity Component [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_EquityComponentDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_EquityComponentDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xml:lang="en-US">us-gaap_IncreaseDecreaseInStockholdersEquityRollForward</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xml:lang="en-US">Increase (Decrease) in Stockholders' Equity [Roll Forward]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>















<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue" xlink:label="loc_I9G01G3G9932937HF776_ucbi_CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue" xml:lang="en-US">Common Stock Issued To Dividend Reinvestment Plan And Employee Benefit Plans Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue" xml:lang="en-US">Common stock issued to Dividend Reinvestment Plan and employee benefit plans (17,826 common shares in 2017, 20,500 common shares in 2016, 17,129 common share in 2015)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue" xml:lang="en-US">Common stock issued to Dividend Reinvestment Plan and employee benefit plans (17,129 common shares in 2015, 28,070 common shares in 2014 and 62,978 common shares in 2013)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue" xml:lang="en-US">This element represents amount of common stock issued to dividend reinvestment plan and employee benefit plans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue" xlink:to="lab_K1I23I5I1154159JH998_ucbi_CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" xlink:label="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" xml:lang="en-US">Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" xml:lang="en-US">Conversion of non-voting common stock to voting common stock (5,285,516 shares in 2016, 4,795,271 shares in 2015)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" xml:lang="en-US">Conversion of non-voting common stock to voting common stock (4,795,271 shares in 2015, 3,107,419 shares in 2014 and 2,128,588 shares in 2013)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" xlink:to="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_StockRedeemedOrCalledDuringPeriodValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRedeemedOrCalledDuringPeriodValue" xml:lang="en-US">Stock Redeemed or Called During Period, Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRedeemedOrCalledDuringPeriodValue" xml:lang="en-US">Retirement of Series A preferred stock (21,700 shares)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRedeemedOrCalledDuringPeriodValue" xml:lang="en-US">Redemption of Series H preferred stock (9,992 shares)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_StockRedeemedOrCalledDuringPeriodValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_StockRedeemedOrCalledDuringPeriodValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" xlink:label="loc_2I0HHGGF8208_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" xml:lang="en-US">Stock Repurchased and Retired During Period, Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" xml:lang="en-US">Purchases of common stock (764,000 shares)</label>
<label xlink:type="resource" xlink:label="lab_4K2JJIIH0420_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Purchases of common stock (764,000 shares)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" xlink:to="lab_4K2JJIIH0420_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>






<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:label="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueAcquisitions" xml:lang="en-US">Stock Issued During Period, Value, Acquisitions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueAcquisitions" xml:lang="en-US">Common and preferred stock issued for acquisitions (11,058,515 common shares and 9,992 preferred shares)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:to="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xml:lang="en-US">Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xml:lang="en-US">Amortization of stock option and restricted stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:label="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Vesting of restricted stock awards, net of shares surrendered to cover payroll taxes (114,837 common shares issued, 111,090 common shares deferred in 2017, 96,722 common shares issued, 106,771 common shares deferred in 2016, 96,722 common shares issued, 106,771 common shares deferred in 2015)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Vesting of restricted stock awards (120,692 common shares issued, 110,935 common shares deferred in 2015, 146,548 common shares issued, 115,609 common shares deferred in 2014, 55,328 common shares issued and 115,664 common shares deferred in 2013)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:to="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeferredCompensationPlanNetIncludingDividendEquivalents" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DeferredCompensationPlanNetIncludingDividendEquivalents"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredCompensationPlanNetIncludingDividendEquivalents" xml:lang="en-US">Deferred Compensation Plan Net Including Dividend Equivalents</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredCompensationPlanNetIncludingDividendEquivalents" xml:lang="en-US">Deferred compensation plan, net, including dividend equivalents</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredCompensationPlanNetIncludingDividendEquivalents" xml:lang="en-US">Deferred compensation plan, net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredCompensationPlanNetIncludingDividendEquivalents" xml:lang="en-US">Represents the value of deferred compensation plan, net, including dividend equivalents.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DeferredCompensationPlanNetIncludingDividendEquivalents" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DeferredCompensationPlanNetIncludingDividendEquivalents"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xml:lang="en-US">Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xml:lang="en-US">Shares issued from deferred compensation plan (32,279 shares in 2017, 61,899 shares in 2016, 28,265 shares in 2015)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:to="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsCommonStockCash" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DividendsCommonStockCash"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DividendsCommonStockCash" xml:lang="en-US">Dividends, Common Stock, Cash</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DividendsCommonStockCash" xml:lang="en-US">Common stock dividends ($.38 per share in 2017, $.30 per share in 2016, $.22 per share in 2015)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DividendsCommonStockCash" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DividendsCommonStockCash"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple" xlink:label="loc_2I0HHGGF8208_us-gaap_IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple" xml:lang="en-US">Income Tax Effects Allocated Directly to Equity, Cumulative Effect of Change in Accounting Principle</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple" xml:lang="en-US">Reclassification of disproportionate tax effects resulting from the Tax Cuts and Jobs Act of 2017 pursuant to ASU 2018-02</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple" xlink:to="lab_4K2JJIIH0420_us-gaap_IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xml:lang="en-US">Cumulative Effect of New Accounting Principle in Period of Adoption</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xml:lang="en-US">Cumulative effect of change in accounting principle</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xlink:label="loc_2I0HHGGF8208_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xml:lang="en-US">Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xml:lang="en-US">Tax on option exercise and restricted stock vesting</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xlink:to="lab_4K2JJIIH0420_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsPreferredStockAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DividendsPreferredStockAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DividendsPreferredStockAbstract" xml:lang="en-US">Dividends, Preferred Stock [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DividendsPreferredStockAbstract" xml:lang="en-US">Preferred stock dividends:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DividendsPreferredStockAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DividendsPreferredStockAbstract"/>










<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DividendsOnSeriesHPreferredStock" xlink:label="loc_2I0HHGGF8208_ucbi_DividendsOnSeriesHPreferredStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DividendsOnSeriesHPreferredStock" xml:lang="en-US">Dividends On Series H Preferred Stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DividendsOnSeriesHPreferredStock" xml:lang="en-US">Series H</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DividendsOnSeriesHPreferredStock" xml:lang="en-US">Represents amount of dividends on series H preferred stock.</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DividendsOnSeriesHPreferredStock" xml:lang="en-US">Series H</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DividendsOnSeriesHPreferredStock" xlink:to="lab_4K2JJIIH0420_ucbi_DividendsOnSeriesHPreferredStock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodShares" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_StockRedeemedOrCalledDuringPeriodShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRedeemedOrCalledDuringPeriodShares" xml:lang="en-US">Stock Redeemed or Called During Period, Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRedeemedOrCalledDuringPeriodShares" xml:lang="en-US">Redemption of preferred stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRedeemedOrCalledDuringPeriodShares" xml:lang="en-US">Retirement of preferred stock, shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_StockRedeemedOrCalledDuringPeriodShares" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_StockRedeemedOrCalledDuringPeriodShares"/>





<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_StockIssuedDuringPeriodSharesDividendReinvestmentPlanAndEmployeeBenefitPlans" xlink:label="loc_I9G01G3G9932937HF776_ucbi_StockIssuedDuringPeriodSharesDividendReinvestmentPlanAndEmployeeBenefitPlans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_StockIssuedDuringPeriodSharesDividendReinvestmentPlanAndEmployeeBenefitPlans" xml:lang="en-US">Stock Issued During Period Shares Dividend Reinvestment Plan and Employee Benefit Plans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_StockIssuedDuringPeriodSharesDividendReinvestmentPlanAndEmployeeBenefitPlans" xml:lang="en-US">Common stock issued to dividend reinvestment plan and employee benefit plans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_StockIssuedDuringPeriodSharesDividendReinvestmentPlanAndEmployeeBenefitPlans" xml:lang="en-US">This element represents number of common stock issued to dividend reinvestment plan and employee benefit plans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_StockIssuedDuringPeriodSharesDividendReinvestmentPlanAndEmployeeBenefitPlans" xlink:to="lab_K1I23I5I1154159JH998_ucbi_StockIssuedDuringPeriodSharesDividendReinvestmentPlanAndEmployeeBenefitPlans"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xml:lang="en-US">Stock Issued During Period, Shares, Conversion of Convertible Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xml:lang="en-US">Conversion of stocks, shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xml:lang="en-US">Stock Issued During Period, Shares, Acquisitions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xml:lang="en-US">Common stock issued for acquisitions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_PreferredStockIssuedForAcquisitions" xlink:label="loc_2I0HHGGF8208_ucbi_PreferredStockIssuedForAcquisitions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_PreferredStockIssuedForAcquisitions" xml:lang="en-US">Preferred Stock Issued For Acquisitions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_PreferredStockIssuedForAcquisitions" xml:lang="en-US">Preferred stock issued for acquisitions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_PreferredStockIssuedForAcquisitions" xml:lang="en-US">Represents number of preferred stock issued for acquisitions.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_PreferredStockIssuedForAcquisitions" xlink:to="lab_4K2JJIIH0420_ucbi_PreferredStockIssuedForAcquisitions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares" xml:lang="en-US">Stock Repurchased and Retired During Period, Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares" xml:lang="en-US">Number of shares repurchased under the program</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares" xml:lang="en-US">Purchases of common stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:label="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xml:lang="en-US">Vesting of restricted stock, shares issued</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:to="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_VestingOfRestrictedStockSharesDeferred" xlink:label="loc_I9G01G3G9932937HF776_ucbi_VestingOfRestrictedStockSharesDeferred"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_VestingOfRestrictedStockSharesDeferred" xml:lang="en-US">Vesting of Restricted Stock Shares Deferred</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_VestingOfRestrictedStockSharesDeferred" xml:lang="en-US">Vesting of restricted stock, shares deferred</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_VestingOfRestrictedStockSharesDeferred" xml:lang="en-US">This element represents value of common stock issued to dividend reinvestment plan and employee benefit plans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_VestingOfRestrictedStockSharesDeferred" xlink:to="lab_K1I23I5I1154159JH998_ucbi_VestingOfRestrictedStockSharesDeferred"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xml:lang="en-US">Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xml:lang="en-US">Shares issued from deferred compensation plan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:to="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommonStockDividendsPerShareDeclared"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockDividendsPerShareDeclared" xml:lang="en-US">Common Stock, Dividends, Per Share, Declared</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonStockDividendsPerShareDeclared" xml:lang="en-US">Common stock dividends (in dollars per share)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CommonStockDividendsPerShareDeclared" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CommonStockDividendsPerShareDeclared"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_StatementOfCashFlowsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StatementOfCashFlowsAbstract" xml:lang="en-US">Consolidated Statement of Cash Flows [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StatementOfCashFlowsAbstract" xml:lang="en-US">Statement of Cash Flows</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StatementOfCashFlowsAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_StatementOfCashFlowsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Operating activities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Adjustments to reconcile net income to net cash used in operating activities:</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Adjustments to reconcile net income to net cash provided by operating activities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationAmortizationAndAccretionNet" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DepreciationAmortizationAndAccretionNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepreciationAmortizationAndAccretionNet" xml:lang="en-US">Depreciation, Amortization and Accretion, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepreciationAmortizationAndAccretionNet" xml:lang="en-US">Depreciation, amortization and accretion</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DepreciationAmortizationAndAccretionNet" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DepreciationAmortizationAndAccretionNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensation" xml:lang="en-US">Share-based Compensation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensation" xml:lang="en-US">Stock based compensation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensation" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredIncomeTaxExpenseBenefit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredIncomeTaxExpenseBenefit" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredIncomeTaxExpenseBenefit" xml:lang="en-US">Deferred income tax expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredIncomeTaxExpenseBenefit" xml:lang="en-US">Deferred income tax expense (benefit)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredIncomeTaxExpenseBenefit"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_2I0HHGGF8208_us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Gains (Losses) on Extinguishment of Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Loss on prepayment of debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Losses on prepayment of borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_GainsLossesOnExtinguishmentOfDebt" xml:lang="en-US">Losses on prepayment of borrowings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="lab_4K2JJIIH0420_us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfOtherAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_GainLossOnSaleOfOtherAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GainLossOnSaleOfOtherAssets" xml:lang="en-US">Gain (Loss) on Disposition of Other Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GainLossOnSaleOfOtherAssets" xml:lang="en-US">Net gains on sales of other assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GainLossOnSaleOfOtherAssets" xml:lang="en-US">Net losses (gains) on sales and write downs of other assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_GainLossOnSaleOfOtherAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_GainLossOnSaleOfOtherAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainsLossesOnSalesOfOtherRealEstate" xlink:label="loc_2I0HHGGF8208_us-gaap_GainsLossesOnSalesOfOtherRealEstate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_GainsLossesOnSalesOfOtherRealEstate" xml:lang="en-US">Gains (Losses) on Sales of Other Real Estate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_GainsLossesOnSalesOfOtherRealEstate" xml:lang="en-US">Net losses (gains) on sales and write downs of other real estate owned</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_GainsLossesOnSalesOfOtherRealEstate" xlink:to="lab_4K2JJIIH0420_us-gaap_GainsLossesOnSalesOfOtherRealEstate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US">Increase (Decrease) in Operating Capital [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US">Change in assets and liabilities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_IncreaseDecreaseInOtherAssetsAndAccruedInterestReceivable" xlink:label="loc_2I0HHGGF8208_ucbi_IncreaseDecreaseInOtherAssetsAndAccruedInterestReceivable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_IncreaseDecreaseInOtherAssetsAndAccruedInterestReceivable" xml:lang="en-US">Increase Decrease In Other Assets And Accrued Interest Receivable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_IncreaseDecreaseInOtherAssetsAndAccruedInterestReceivable" xml:lang="en-US">This element represents amount of other assets and accrued interest receivable.</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_ucbi_IncreaseDecreaseInOtherAssetsAndAccruedInterestReceivable" xml:lang="en-US">Increase in other assets and accrued interest receivable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_IncreaseDecreaseInOtherAssetsAndAccruedInterestReceivable" xlink:to="lab_4K2JJIIH0420_ucbi_IncreaseDecreaseInOtherAssetsAndAccruedInterestReceivable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities" xml:lang="en-US">Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities" xml:lang="en-US">Increase (decrease) in accrued expenses and other liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInLoansHeldForSale" xlink:label="loc_2I0HHGGF8208_us-gaap_IncreaseDecreaseInLoansHeldForSale"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncreaseDecreaseInLoansHeldForSale" xml:lang="en-US">Increase (Decrease) in Loans Held-for-sale</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncreaseDecreaseInLoansHeldForSale" xml:lang="en-US">Decrease (increase) in loans held for sale</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncreaseDecreaseInLoansHeldForSale" xlink:to="lab_4K2JJIIH0420_us-gaap_IncreaseDecreaseInLoansHeldForSale"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities, Continuing Operations, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xml:lang="en-US">Net cash provided by (used) in operating activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xml:lang="en-US">Net cash provided by operating activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Investing activities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_InvestmentSecuritiesHeldToMaturityAbstract" xlink:label="loc_I9G01G3G9932937HF776_ucbi_InvestmentSecuritiesHeldToMaturityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_InvestmentSecuritiesHeldToMaturityAbstract" xml:lang="en-US">Investment Securities Held to Maturity [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_InvestmentSecuritiesHeldToMaturityAbstract" xml:lang="en-US">Investment securities held-to-maturity:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_InvestmentSecuritiesHeldToMaturityAbstract" xlink:to="lab_K1I23I5I1154159JH998_ucbi_InvestmentSecuritiesHeldToMaturityAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" xlink:label="loc_2I0HHGGF8208_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" xml:lang="en-US">Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" xml:lang="en-US">Proceeds from maturities and calls</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" xlink:to="lab_4K2JJIIH0420_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireHeldToMaturitySecurities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PaymentsToAcquireHeldToMaturitySecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquireHeldToMaturitySecurities" xml:lang="en-US">Payments to Acquire Held-to-maturity Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquireHeldToMaturitySecurities" xml:lang="en-US">Purchases</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PaymentsToAcquireHeldToMaturitySecurities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquireHeldToMaturitySecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesAbstract" xml:lang="en-US">Available-for-sale Securities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesAbstract" xml:lang="en-US">Investment securities available-for-sale:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xml:lang="en-US">Proceeds from Sale of Available-for-sale Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xml:lang="en-US">Sales and paydowns of securities available for sale</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xml:lang="en-US">Proceeds from sales</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xlink:label="loc_2I0HHGGF8208_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xml:lang="en-US">Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xml:lang="en-US">Proceeds from maturities and calls</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xlink:to="lab_4K2JJIIH0420_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PaymentsToAcquireAvailableForSaleSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xml:lang="en-US">Payments to Acquire Available-for-sale Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xml:lang="en-US">Purchase of available for sale securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xml:lang="en-US">Purchases</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xml:lang="en-US">Purchase of available for sale securities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquireAvailableForSaleSecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForProceedsFromLoansAndLeases" xlink:label="loc_2I0HHGGF8208_us-gaap_PaymentsForProceedsFromLoansAndLeases"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsForProceedsFromLoansAndLeases" xml:lang="en-US">Payments for (Proceeds from) Loans and Leases</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsForProceedsFromLoansAndLeases" xml:lang="en-US">Net (increase) decrease in loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsForProceedsFromLoansAndLeases" xml:lang="en-US">Net increase in loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PaymentsForProceedsFromLoansAndLeases" xlink:to="lab_4K2JJIIH0420_us-gaap_PaymentsForProceedsFromLoansAndLeases"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfNotesReceivable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromSaleOfNotesReceivable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfNotesReceivable" xml:lang="en-US">Proceeds From Sale Of Notes Receivable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfNotesReceivable" xml:lang="en-US">Proceeds from sales of loans held for investment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromSaleOfNotesReceivable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfNotesReceivable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_2I0HHGGF8208_us-gaap_PaymentsToAcquireBusinessesGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireBusinessesGross" xml:lang="en-US">Net cash paid for acquisitions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireBusinessesGross" xml:lang="en-US">Cash</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireBusinessesGross" xml:lang="en-US">Net cash received for acquisitions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireBusinessesGross" xml:lang="en-US">Net cash received for acquisitions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireBusinessesGross" xml:lang="en-US">Payment for acquisition</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PaymentsToAcquireBusinessesGross" xlink:to="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireBusinessesGross"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireLifeInsurancePolicies" xlink:label="loc_2I0HHGGF8208_us-gaap_PaymentsToAcquireLifeInsurancePolicies"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireLifeInsurancePolicies" xml:lang="en-US">Payments to Acquire Life Insurance Policies</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireLifeInsurancePolicies" xml:lang="en-US">Purchase of bank owned life insurance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireLifeInsurancePolicies" xml:lang="en-US">Purchase of bank owned life insurance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PaymentsToAcquireLifeInsurancePolicies" xlink:to="lab_4K2JJIIH0420_us-gaap_PaymentsToAcquireLifeInsurancePolicies"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US">Payments to Acquire Property, Plant, and Equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US">Purchases of premises and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="loc_2I0HHGGF8208_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xml:lang="en-US">Proceeds from Sale of Property, Plant, and Equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xml:lang="en-US">Proceeds from sales of premises and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:to="lab_4K2JJIIH0420_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfOtherRealEstate" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromSaleOfOtherRealEstate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfOtherRealEstate" xml:lang="en-US">Proceeds from Sale of Other Real Estate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfOtherRealEstate" xml:lang="en-US">Proceeds from sale of other real estate owned</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromSaleOfOtherRealEstate" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromSaleOfOtherRealEstate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities, Continuing Operations, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xml:lang="en-US">Net cash provided by (used in) investing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xml:lang="en-US">Net cash used in investing activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Financing activities:</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Financing activities:</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInDeposits" xlink:label="loc_2I0HHGGF8208_us-gaap_IncreaseDecreaseInDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncreaseDecreaseInDeposits" xml:lang="en-US">Increase (Decrease) in Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncreaseDecreaseInDeposits" xml:lang="en-US">Net increase in deposits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncreaseDecreaseInDeposits" xlink:to="lab_4K2JJIIH0420_us-gaap_IncreaseDecreaseInDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebt" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromRepaymentsOfShortTermDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromRepaymentsOfShortTermDebt" xml:lang="en-US">Proceeds from (Repayments of) Short-term Debt, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromRepaymentsOfShortTermDebt" xml:lang="en-US">Net increase (decrease) in short-term borrowings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromRepaymentsOfShortTermDebt" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromRepaymentsOfShortTermDebt"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromFederalHomeLoanBankAdvances" xlink:label="loc_2I0HHGGF8208_us-gaap_ProceedsFromFederalHomeLoanBankAdvances"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ProceedsFromFederalHomeLoanBankAdvances" xml:lang="en-US">Proceeds from Federal Home Loan Bank Advances</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ProceedsFromFederalHomeLoanBankAdvances" xml:lang="en-US">Proceeds from Federal Home Loan Bank advances</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ProceedsFromFederalHomeLoanBankAdvances" xlink:to="lab_4K2JJIIH0420_us-gaap_ProceedsFromFederalHomeLoanBankAdvances"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings" xml:lang="en-US">Repayments of Federal Home Loan Bank Borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings" xml:lang="en-US">Repayment of Federal Home Loan Bank advances</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_2I0HHGGF8208_us-gaap_RepaymentsOfLongTermDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RepaymentsOfLongTermDebt" xml:lang="en-US">Repayments of Long-term Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_RepaymentsOfLongTermDebt" xml:lang="en-US">Repayment of long-term debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_RepaymentsOfLongTermDebt" xml:lang="en-US">Redemption price of debentures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_RepaymentsOfLongTermDebt" xml:lang="en-US">Repayment of long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_RepaymentsOfLongTermDebt" xlink:to="lab_4K2JJIIH0420_us-gaap_RepaymentsOfLongTermDebt"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromIssuanceOfLongTermDebt" xml:lang="en-US">Proceeds from Issuance of Long-term Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromIssuanceOfLongTermDebt" xml:lang="en-US">Proceeds from issuance of long-term debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromIssuanceOfLongTermDebt" xml:lang="en-US">Proceeds from issuance of long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ProceedsFromIssuanceOfCommonStockForDividendReinvestmentAndEmployeeBenefitPlans" xlink:label="loc_2I0HHGGF8208_ucbi_ProceedsFromIssuanceOfCommonStockForDividendReinvestmentAndEmployeeBenefitPlans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ProceedsFromIssuanceOfCommonStockForDividendReinvestmentAndEmployeeBenefitPlans" xml:lang="en-US">Proceeds From Issuance Of Common Stock For Dividend Reinvestment And Employee Benefit Plans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ProceedsFromIssuanceOfCommonStockForDividendReinvestmentAndEmployeeBenefitPlans" xml:lang="en-US">Proceeds from issuance of common stock for dividend reinvestment and employee benefit plans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ProceedsFromIssuanceOfCommonStockForDividendReinvestmentAndEmployeeBenefitPlans" xml:lang="en-US">Represents amount of cash inflow from the amount received from the stock plan and capital contributions to an entity associated with a dividend reinvestment plan during the period.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ProceedsFromIssuanceOfCommonStockForDividendReinvestmentAndEmployeeBenefitPlans" xlink:to="lab_4K2JJIIH0420_ucbi_ProceedsFromIssuanceOfCommonStockForDividendReinvestmentAndEmployeeBenefitPlans"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xml:lang="en-US">Payments Related to Tax Withholding for Share-based Compensation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xml:lang="en-US">Cash paid for shares withheld to cover payroll taxes upon vesting of restricted stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xml:lang="en-US">Cash paid for shares withheld to cover payroll taxes upon vesting of restricted stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_2I0HHGGF8208_us-gaap_PaymentsForRepurchaseOfCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsForRepurchaseOfCommonStock" xml:lang="en-US">Payments for Repurchase of Common Stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsForRepurchaseOfCommonStock" xml:lang="en-US">Purchase of treasury stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsForRepurchaseOfCommonStock" xml:lang="en-US">Repurchase of common stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsForRepurchaseOfCommonStock" xml:lang="en-US">Repurchase of common stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:to="lab_4K2JJIIH0420_us-gaap_PaymentsForRepurchaseOfCommonStock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock" xml:lang="en-US">Payments for Repurchase of Preferred Stock and Preference Stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock" xml:lang="en-US">Retirement of preferred stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_2I0HHGGF8208_us-gaap_PaymentsOfDividendsCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsOfDividendsCommonStock" xml:lang="en-US">Payments of Ordinary Dividends, Common Stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsOfDividendsCommonStock" xml:lang="en-US">Cash dividends on common stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PaymentsOfDividendsCommonStock" xlink:to="lab_4K2JJIIH0420_us-gaap_PaymentsOfDividendsCommonStock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" xml:lang="en-US">Payments of Ordinary Dividends, Preferred Stock and Preference Stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" xml:lang="en-US">Cash dividends on preferred stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" xml:lang="en-US">Cash dividends on preferred stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities, Continuing Operations, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xml:lang="en-US">Net cash used in financing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xml:lang="en-US">Net cash (used in) provided by financing activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Cash and Cash Equivalents, Period Increase (Decrease)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Net change in cash</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Net change in cash and cash equivalents</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_2I0HHGGF8208_us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and cash equivalents at beginning of year</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccountingPoliciesAbstract"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingChangesAndErrorCorrectionsAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccountingChangesAndErrorCorrectionsAbstract"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationDisclosureTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationDisclosureTextBlock" xml:lang="en-US">Business Combination Disclosure [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationDisclosureTextBlock" xml:lang="en-US">Mergers and Acquisitions</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SupplementalCashFlowElementsAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SupplementalCashFlowElementsAbstract"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CashFlowSupplementalDisclosuresTextBlock" xml:lang="en-US">Cash Flows</label>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OffsettingAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OffsettingAbstract"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BalanceSheetOffsettingAndRepurchaseAgreementsAccountedForAsSecuredBorrowingsTextBlock" xlink:label="loc_2I0HHGGF8208_ucbi_BalanceSheetOffsettingAndRepurchaseAgreementsAccountedForAsSecuredBorrowingsTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BalanceSheetOffsettingAndRepurchaseAgreementsAccountedForAsSecuredBorrowingsTextBlock" xml:lang="en-US">Balance Sheet Offsetting And Repurchase Agreements Accounted For As Secured Borrowings [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BalanceSheetOffsettingAndRepurchaseAgreementsAccountedForAsSecuredBorrowingsTextBlock" xml:lang="en-US">Balance Sheet Offsetting and Repurchase Agreements Accounted for as Secured Borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BalanceSheetOffsettingAndRepurchaseAgreementsAccountedForAsSecuredBorrowingsTextBlock" xml:lang="en-US">The entire disclosure for balance sheet offsetting and repurchase agreements accounted for as secured borrowings.</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract" xml:lang="en-US">Investment Securities [Abstract]</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketableSecuritiesTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_MarketableSecuritiesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_MarketableSecuritiesTextBlock" xml:lang="en-US">Marketable Securities [Table Text Block]</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ReceivablesAbstract"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock" xml:lang="en-US">Loans, Notes, Trade and Other Receivables Disclosure [Text Block]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TransfersAndServicingOfFinancialAssetsPolicyTextBlock" xml:lang="en-US">Servicing Rights</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BankOwnedLifeInsurancePolicyTextBlock" xlink:label="loc_2I0HHGGF8208_ucbi_BankOwnedLifeInsurancePolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BankOwnedLifeInsurancePolicyTextBlock" xml:lang="en-US">Bank Owned Life Insurance [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BankOwnedLifeInsurancePolicyTextBlock" xml:lang="en-US">Bank Owned Life Insurance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BankOwnedLifeInsurancePolicyTextBlock" xml:lang="en-US">Disclosure of accounting policy for information of Bank owned life insurance.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BankOwnedLifeInsurancePolicyTextBlock" xlink:to="lab_4K2JJIIH0420_ucbi_BankOwnedLifeInsurancePolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoanCommitmentsPolicy" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoanCommitmentsPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoanCommitmentsPolicy" xml:lang="en-US">Loan Commitments, Policy [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoanCommitmentsPolicy" xml:lang="en-US">Loan Commitments and Related Financial Instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoanCommitmentsPolicy" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoanCommitmentsPolicy"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_IncomeTaxPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxPolicyTextBlock" xml:lang="en-US">Income Tax, Policy [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxPolicyTextBlock" xml:lang="en-US">Income Taxes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncomeTaxPolicyTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_IncomeTaxPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativesPolicyTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativesPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativesPolicyTextBlock" xml:lang="en-US">Derivatives, Policy [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativesPolicyTextBlock" xml:lang="en-US">Derivative Instruments and Hedging Activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativesPolicyTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativesPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsPolicy" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationsPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationsPolicy" xml:lang="en-US">Business Combinations Policy [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationsPolicy" xml:lang="en-US">Acquisition Activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationsPolicy" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationsPolicy"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_EarningsPerSharePolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EarningsPerSharePolicyTextBlock" xml:lang="en-US">Earnings Per Share, Policy [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EarningsPerSharePolicyTextBlock" xml:lang="en-US">Earnings Per Common Share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_EarningsPerSharePolicyTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_EarningsPerSharePolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_CommitmentsAndContingenciesPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xml:lang="en-US">Commitments and Contingencies, Policy [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xml:lang="en-US">Loss Contingencies</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_CommitmentsAndContingenciesPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DividendRestrictionsPolicyTextBlock" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DividendRestrictionsPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DividendRestrictionsPolicyTextBlock" xml:lang="en-US">Dividend Restrictions [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DividendRestrictionsPolicyTextBlock" xml:lang="en-US">Dividend Restrictions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DividendRestrictionsPolicyTextBlock" xml:lang="en-US">Represents disclosure of accounting policy for dividend restrictions.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DividendRestrictionsPolicyTextBlock" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DividendRestrictionsPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueOfFinancialInstrumentsPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueOfFinancialInstrumentsPolicy" xml:lang="en-US">Fair Value of Financial Instruments, Policy [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueOfFinancialInstrumentsPolicy" xml:lang="en-US">Fair Value of Financial Instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueOfFinancialInstrumentsPolicy"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationRelatedCostsPolicyTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CompensationRelatedCostsPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CompensationRelatedCostsPolicyTextBlock" xml:lang="en-US">Compensation Related Costs, Policy [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CompensationRelatedCostsPolicyTextBlock" xml:lang="en-US">Stock-Based Compensation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CompensationRelatedCostsPolicyTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CompensationRelatedCostsPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:label="loc_2I0HHGGF8208_us-gaap_PriorPeriodReclassificationAdjustmentDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PriorPeriodReclassificationAdjustmentDescription" xml:lang="en-US">Reclassification, Policy [Policy Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PriorPeriodReclassificationAdjustmentDescription" xml:lang="en-US">Reclassifications</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:to="lab_4K2JJIIH0420_us-gaap_PriorPeriodReclassificationAdjustmentDescription"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xml:lang="en-US">Schedule of Business Acquisitions, by Acquisition [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessAcquisitionAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionAxis" xml:lang="en-US">Business Acquisition [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessAcquisitionAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessAcquisitionAcquireeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionAcquireeDomain" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionAcquireeDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FourOaksFincorpIncMember" xlink:label="loc_2I0HHGGF8208_ucbi_FourOaksFincorpIncMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FourOaksFincorpIncMember" xml:lang="en-US">Four Oaks Fincorp, Inc [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FourOaksFincorpIncMember" xml:lang="en-US">Four Oaks Fincorp, Inc</label>
<label xlink:type="resource" xlink:label="lab_4K2JJIIH0420_ucbi_FourOaksFincorpIncMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Four Oaks Fincorp, Inc</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FourOaksFincorpIncMember" xlink:to="lab_4K2JJIIH0420_ucbi_FourOaksFincorpIncMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TidelandsBancsharesIncMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_TidelandsBancsharesIncMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TidelandsBancsharesIncMember" xml:lang="en-US">Tidelands Bancshares Inc [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TidelandsBancsharesIncMember" xml:lang="en-US">Tidelands Bancshares, Inc</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TidelandsBancsharesIncMember" xml:lang="en-US">Represents information about Tidelands Bancshares Inc, a legal entity.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_TidelandsBancsharesIncMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_TidelandsBancsharesIncMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_PalmettoBankMember" xlink:label="loc_2I0HHGGF8208_ucbi_PalmettoBankMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_PalmettoBankMember" xml:lang="en-US">Palmetto Bank [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_PalmettoBankMember" xml:lang="en-US">Palmetto Bancshares, Inc</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_PalmettoBankMember" xml:lang="en-US">Represents information about Palmetto Bank.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_PalmettoBankMember" xlink:to="lab_4K2JJIIH0420_ucbi_PalmettoBankMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MoneyTreeCorporationMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_MoneyTreeCorporationMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MoneyTreeCorporationMember" xml:lang="en-US">Money Tree Corporation Member</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MoneyTreeCorporationMember" xml:lang="en-US">Money Tree Corporation, from May 1, 2015 - December 31, 2015</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MoneyTreeCorporationMember" xml:lang="en-US">Money Tree Corporation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MoneyTreeCorporationMember" xml:lang="en-US">Represents information related to MoneyTree Corporation.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_MoneyTreeCorporationMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_MoneyTreeCorporationMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_HcsbFinancialCorporationMember" xlink:label="loc_2I0HHGGF8208_ucbi_HcsbFinancialCorporationMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_HcsbFinancialCorporationMember" xml:lang="en-US">Hcsb Financial Corporation [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_HcsbFinancialCorporationMember" xml:lang="en-US">HCSB Financial Corporation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_HcsbFinancialCorporationMember" xlink:to="lab_4K2JJIIH0420_ucbi_HcsbFinancialCorporationMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessAcquisitionLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionLineItems" xml:lang="en-US">Business Acquisition [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessAcquisitionLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xml:lang="en-US">Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xml:lang="en-US">Schedule of purchased assets and assumed liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AdditionalInformationRelatedToAcquiredLoanTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AdditionalInformationRelatedToAcquiredLoanTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AdditionalInformationRelatedToAcquiredLoanTableTextBlock" xml:lang="en-US">Additional Information Related To Acquired Loan Table [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AdditionalInformationRelatedToAcquiredLoanTableTextBlock" xml:lang="en-US">Additional information related to acquired loan portfolio at acquisition date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AdditionalInformationRelatedToAcquiredLoanTableTextBlock" xml:lang="en-US">Tabular disclosure of the amounts recognized as additional information related to the acquired loan.</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTableTextBlock" xml:lang="en-US">Business Acquisition, Pro Forma Information, Nonrecurring Adjustments [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTableTextBlock" xml:lang="en-US">Schedule of actual results and pro forma information</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRepurchaseAgreements" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfRepurchaseAgreements"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfRepurchaseAgreements" xml:lang="en-US">Schedule of Repurchase Agreements [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfRepurchaseAgreements" xml:lang="en-US">Schedule of summary of amounts outstanding under reverse repurchase agreements</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfRepurchaseAgreements" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfRepurchaseAgreements"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ScheduleOfRepurchaseAgreementsRemainingContractualMaturityOfAgreementsTableTextBlock" xlink:label="loc_2I0HHGGF8208_ucbi_ScheduleOfRepurchaseAgreementsRemainingContractualMaturityOfAgreementsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfRepurchaseAgreementsRemainingContractualMaturityOfAgreementsTableTextBlock" xml:lang="en-US">Schedule Of Repurchase Agreements Remaining Contractual Maturity Of Agreements Table [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfRepurchaseAgreementsRemainingContractualMaturityOfAgreementsTableTextBlock" xml:lang="en-US">Schedule of repurchase agreements remaining contractual maturity of the agreements</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfRepurchaseAgreementsRemainingContractualMaturityOfAgreementsTableTextBlock" xml:lang="en-US">Tabular disclosure for repurchase agreements remaining contractual maturity of the agreements.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ScheduleOfRepurchaseAgreementsRemainingContractualMaturityOfAgreementsTableTextBlock" xlink:to="lab_4K2JJIIH0420_ucbi_ScheduleOfRepurchaseAgreementsRemainingContractualMaturityOfAgreementsTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_HeldToMaturitySecuritiesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_HeldToMaturitySecuritiesTextBlock" xml:lang="en-US">Held-to-maturity Securities [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_HeldToMaturitySecuritiesTextBlock" xml:lang="en-US">Schedule of cost basis, unrealized gains and losses, and fair value of securities held-to-maturity</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_HeldToMaturitySecuritiesTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_HeldToMaturitySecuritiesTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesTextBlock" xml:lang="en-US">Available-for-sale Securities [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesTextBlock" xml:lang="en-US">Schedule of cost basis, unrealized gains and losses, and fair value of securities available for sale</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRealizedGainLossTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfRealizedGainLossTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfRealizedGainLossTableTextBlock" xml:lang="en-US">Schedule of Realized Gain (Loss) [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfRealizedGainLossTableTextBlock" xml:lang="en-US">Schedule of summary of available-for-sale securities sales activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfRealizedGainLossTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfRealizedGainLossTableTextBlock"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_UnrealizedGainLossOnHeldToMaturitySecuritiesTableTextBlock" xlink:label="loc_2I0HHGGF8208_ucbi_UnrealizedGainLossOnHeldToMaturitySecuritiesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_UnrealizedGainLossOnHeldToMaturitySecuritiesTableTextBlock" xml:lang="en-US">Unrealized Gain Loss On Held To Maturity Securities [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_UnrealizedGainLossOnHeldToMaturitySecuritiesTableTextBlock" xml:lang="en-US">Schedule of summary of held to maturity securities in an unrealized loss position</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_UnrealizedGainLossOnHeldToMaturitySecuritiesTableTextBlock" xml:lang="en-US">Represents unrealized gain loss on held to maturity securities.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_UnrealizedGainLossOnHeldToMaturitySecuritiesTableTextBlock" xlink:to="lab_4K2JJIIH0420_ucbi_UnrealizedGainLossOnHeldToMaturitySecuritiesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock" xml:lang="en-US">Schedule of summary of available for sale securities in an unrealized loss position</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xml:lang="en-US">Investments Classified by Contractual Maturity Date [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xml:lang="en-US">Schedule of amortized cost and fair value of available for sale and held to maturity securities by contractual maturity</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xml:lang="en-US">Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xml:lang="en-US">Schedule of major classifications of loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ScheduleOfChangesInValueOfAccretableYieldForAcquiredLoansTableTextBlock" xlink:label="loc_2I0HHGGF8208_ucbi_ScheduleOfChangesInValueOfAccretableYieldForAcquiredLoansTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfChangesInValueOfAccretableYieldForAcquiredLoansTableTextBlock" xml:lang="en-US">Schedule Of Changes In Value Of Accretable Yield For Acquired Loans [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfChangesInValueOfAccretableYieldForAcquiredLoansTableTextBlock" xml:lang="en-US">Schedule of value of the accretable yield for PCI loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfChangesInValueOfAccretableYieldForAcquiredLoansTableTextBlock" xml:lang="en-US">Tabular disclosure of changes in value of accretable yield for acquired loans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ScheduleOfChangesInValueOfAccretableYieldForAcquiredLoansTableTextBlock" xlink:to="lab_4K2JJIIH0420_ucbi_ScheduleOfChangesInValueOfAccretableYieldForAcquiredLoansTableTextBlock"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ScheduleOfLoansAndLeasesReceivableRelatedPartiesTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ScheduleOfLoansAndLeasesReceivableRelatedPartiesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ScheduleOfLoansAndLeasesReceivableRelatedPartiesTableTextBlock" xml:lang="en-US">Schedule of Loans and Leases Receivable Related Parties [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ScheduleOfLoansAndLeasesReceivableRelatedPartiesTableTextBlock" xml:lang="en-US">Schedule of summary of loans outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ScheduleOfLoansAndLeasesReceivableRelatedPartiesTableTextBlock" xml:lang="en-US">Schedule of summary of loans outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ScheduleOfLoansAndLeasesReceivableRelatedPartiesTableTextBlock" xml:lang="en-US">This element represents tabular disclosure of loans and leases receivable related parties.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ScheduleOfLoansAndLeasesReceivableRelatedPartiesTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ScheduleOfLoansAndLeasesReceivableRelatedPartiesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCreditLossesRelatedToFinancingReceivablesCurrentAndNoncurrentTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfCreditLossesRelatedToFinancingReceivablesCurrentAndNoncurrentTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfCreditLossesRelatedToFinancingReceivablesCurrentAndNoncurrentTableTextBlock" xml:lang="en-US">Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfCreditLossesRelatedToFinancingReceivablesCurrentAndNoncurrentTableTextBlock" xml:lang="en-US">Schedule of balance and activity in allowance for credit losses by portfolio segment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfCreditLossesRelatedToFinancingReceivablesCurrentAndNoncurrentTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfCreditLossesRelatedToFinancingReceivablesCurrentAndNoncurrentTableTextBlock"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansTableTextBlock" xml:lang="en-US">Average Balances of Impaired Loans and Income Recognized on Impaired Loans [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansTableTextBlock" xml:lang="en-US">Schedule of average balances of impaired loans and income recognized on impaired loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansTableTextBlock" xml:lang="en-US">This element represents tabular disclosure of average balances of impaired loans and income recognized on impaired loans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivablesTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivablesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivablesTableTextBlock" xml:lang="en-US">Impaired Financing Receivables [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivablesTableTextBlock" xml:lang="en-US">Schedule of loans individually evaluated for impairment by class of loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivablesTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivablesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock" xml:lang="en-US">Schedule Of Financing Receivables Non Accrual Status Table [Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock" xml:lang="en-US">Schedule of recorded investment in nonaccrual loans held for investment by loan class</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PastDueFinancingReceivablesTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_PastDueFinancingReceivablesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PastDueFinancingReceivablesTableTextBlock" xml:lang="en-US">Past Due Financing Receivables [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PastDueFinancingReceivablesTableTextBlock" xml:lang="en-US">Schedule of aging of the recorded investment in past due loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PastDueFinancingReceivablesTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_PastDueFinancingReceivablesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock" xml:lang="en-US">Troubled Debt Restructurings on Financing Receivables [Table Text Block]</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock" xml:lang="en-US">Financing Receivable Credit Quality Indicators [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock" xml:lang="en-US">Schedule of risk category of loans by class of loans</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PropertyPlantAndEquipmentTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PropertyPlantAndEquipmentTextBlock" xml:lang="en-US">Property, Plant and Equipment [Table Text Block]</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xml:lang="en-US">Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xml:lang="en-US">Schedule of rent commitments under operating leases</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xml:lang="en-US">Schedule of Intangible Assets and Goodwill [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xml:lang="en-US">Schedule of carrying amount of goodwill and other intangible assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfGoodwillTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfGoodwillTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfGoodwillTextBlock" xml:lang="en-US">Schedule of Goodwill [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfGoodwillTextBlock" xml:lang="en-US">Schedule of changes in the carrying amounts of goodwill</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfGoodwillTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfGoodwillTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" xml:lang="en-US">Finite-lived Intangible Assets Amortization Expense [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" xml:lang="en-US">Schedule of amortization expense for future periods</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ScheduleOfClassificationsOfForeclosedPropertiesTableTextBlock" xlink:label="loc_2I0HHGGF8208_ucbi_ScheduleOfClassificationsOfForeclosedPropertiesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfClassificationsOfForeclosedPropertiesTableTextBlock" xml:lang="en-US">Schedule Of Classifications Of Foreclosed Properties [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfClassificationsOfForeclosedPropertiesTableTextBlock" xml:lang="en-US">Schedule of classifications of foreclosed properties</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfClassificationsOfForeclosedPropertiesTableTextBlock" xml:lang="en-US">Tabular disclosure of classifications of foreclosed properties.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ScheduleOfClassificationsOfForeclosedPropertiesTableTextBlock" xlink:to="lab_4K2JJIIH0420_ucbi_ScheduleOfClassificationsOfForeclosedPropertiesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfServicingAssetsAtFairValueTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfServicingAssetsAtFairValueTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfServicingAssetsAtFairValueTextBlock" xml:lang="en-US">Schedule of Servicing Assets at Fair Value [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfServicingAssetsAtFairValueTextBlock" xml:lang="en-US">Schedule of changes in the balances of servicing assets and servicing liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfServicingAssetsAtFairValueTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfServicingAssetsAtFairValueTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAssumptionsForFairValueOnSecuritizationDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfAssumptionsForFairValueOnSecuritizationDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfAssumptionsForFairValueOnSecuritizationDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock" xml:lang="en-US">Schedule of Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfAssumptionsForFairValueOnSecuritizationDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock" xml:lang="en-US">Schedule of key characteristics, inputs, and economic assumptions used to estimate the fair value of SBA Servicing Asset</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfAssumptionsForFairValueOnSecuritizationDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfAssumptionsForFairValueOnSecuritizationDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfServicingAssetsAtAmortizedValueTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfServicingAssetsAtAmortizedValueTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfServicingAssetsAtAmortizedValueTextBlock" xml:lang="en-US">Servicing Asset at Amortized Cost [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfServicingAssetsAtAmortizedValueTextBlock" xml:lang="en-US">Schedule of changes in residential mortgage servicing rights</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfServicingAssetsAtAmortizedValueTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfServicingAssetsAtAmortizedValueTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfValuationAllowanceForImpairmentOfRecognizedServicingAssetsTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfValuationAllowanceForImpairmentOfRecognizedServicingAssetsTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfValuationAllowanceForImpairmentOfRecognizedServicingAssetsTextBlock" xml:lang="en-US">Schedule of Valuation Allowance for Impairment of Recognized Servicing Assets [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfValuationAllowanceForImpairmentOfRecognizedServicingAssetsTextBlock" xml:lang="en-US">Schedule of valuation allowance for impairment of the residential mortgage servicing rights portfolio</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfValuationAllowanceForImpairmentOfRecognizedServicingAssetsTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfValuationAllowanceForImpairmentOfRecognizedServicingAssetsTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfSensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfSensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock" xml:lang="en-US">Schedule of characteristics, inputs, and economic assumptions used to estimate fair value of servicing asset for residential mortgage loans sensitivity of adverse changes</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfSensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfSensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrServicingLiabilitiesTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_TimeDepositMaturitiesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesTableTextBlock" xml:lang="en-US">Time Deposit Maturities [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesTableTextBlock" xml:lang="en-US">Schedule of summary of contractual maturities of time deposits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TimeDepositMaturitiesTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesTableTextBlock" xml:lang="en-US">Federal Home Loan Bank, Advances [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesTableTextBlock" xml:lang="en-US">Schedule of maturities and current rates of outstanding advances</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfDebtInstrumentsTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfDebtInstrumentsTextBlock" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfDebtInstrumentsTextBlock" xml:lang="en-US">Schedule of long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfDebtInstrumentsTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock" xml:lang="en-US">Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock" xml:lang="en-US">Schedule of details regarding amounts reclassified out of accumulated other comprehensive income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xml:lang="en-US">Schedule of computation of basic and diluted net income per common share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xml:lang="en-US">Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xml:lang="en-US">Schedule of income tax expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock" xml:lang="en-US">Schedule of Interest Rate Derivatives [Table Text Block]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfCashFlowHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xml:lang="en-US">Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfCashFlowHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xml:lang="en-US">Schedule of effect of cash flow hedging on consolidated statements of income</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFairValueHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xml:lang="en-US">Schedule of effect of fair value hedging on consolidated statements of income</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xml:lang="en-US">Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xml:lang="en-US">Schedule of gains and losses recognized in income on derivatives not designated as hedging instruments</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTextBlock" xml:lang="en-US">Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xml:lang="en-US">Schedule of assets and liabilities measured at fair value on a recurring basis</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xml:lang="en-US">Schedule of assets measured at fair value on a recurring basis using significant unobservable inputs</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock" xml:lang="en-US">Schedule of quantitative information about Level 3 fair value measurements for fair value on a recurring basis</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xml:lang="en-US">Schedule of presentation of United's assets and liabilities measured at fair value on nonrecurring basis</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueByBalanceSheetGroupingTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueByBalanceSheetGroupingTextBlock" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueByBalanceSheetGroupingTextBlock" xml:lang="en-US">Schedule of summary of carrying amount and fair values for other financial instruments not measured at fair value on a recurring basis</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueByBalanceSheetGroupingTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xml:lang="en-US">Schedule of Condensed Income Statement [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xml:lang="en-US">Schedule of statement of operations</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock" xml:lang="en-US">Schedule of Condensed Balance Sheet [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock" xml:lang="en-US">Schedule of balance sheet</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock" xml:lang="en-US">Schedule of Condensed Cash Flow Statement [Table Text Block]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock" xml:lang="en-US">Schedule of statement of cash flows</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AccountingPoliciesTable" xlink:label="loc_2I0HHGGF8208_ucbi_AccountingPoliciesTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_AccountingPoliciesTable" xml:lang="en-US">Accounting Policies [Table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_AccountingPoliciesTable" xml:lang="en-US">Represents information of accounting policies of the organization.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_AccountingPoliciesTable" xlink:to="lab_4K2JJIIH0420_ucbi_AccountingPoliciesTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xml:lang="en-US">Property, Plant and Equipment, Type [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentTypeDomain" xml:lang="en-US">Property, Plant and Equipment, Type [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingAndBuildingImprovementsMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BuildingAndBuildingImprovementsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BuildingAndBuildingImprovementsMember" xml:lang="en-US">Building and Building Improvements [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BuildingAndBuildingImprovementsMember" xml:lang="en-US">Buildings and improvements</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BuildingAndBuildingImprovementsMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BuildingAndBuildingImprovementsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LandImprovementsMember" xlink:label="loc_2I0HHGGF8208_us-gaap_LandImprovementsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LandImprovementsMember" xml:lang="en-US">Land Improvements</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LandImprovementsMember" xml:lang="en-US">Land improvements</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LandImprovementsMember" xlink:to="lab_4K2JJIIH0420_us-gaap_LandImprovementsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FurnitureAndFixturesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FurnitureAndFixturesMember" xml:lang="en-US">Furniture and Fixtures [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FurnitureAndFixturesMember" xml:lang="en-US">Furniture and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FurnitureAndFixturesMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FurnitureAndFixturesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_ConcentrationRiskByTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ConcentrationRiskByTypeAxis" xml:lang="en-US">Concentration Risk Type [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ConcentrationRiskByTypeAxis" xml:lang="en-US">Concentration Risk Type [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ConcentrationRiskByTypeAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_ConcentrationRiskByTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ConcentrationRiskTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ConcentrationRiskTypeDomain" xml:lang="en-US">Concentration Risk Type [Domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ConcentrationRiskTypeDomain" xml:lang="en-US">Concentration Risk Type [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ConcentrationRiskTypeDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ConcentrationRiskTypeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditConcentrationRiskMember" xlink:label="loc_2I0HHGGF8208_us-gaap_CreditConcentrationRiskMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CreditConcentrationRiskMember" xml:lang="en-US">Credit Concentration Risk [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CreditConcentrationRiskMember" xml:lang="en-US">Credit Concentration Risk</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CreditConcentrationRiskMember" xlink:to="lab_4K2JJIIH0420_us-gaap_CreditConcentrationRiskMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AccountingPoliciesLineItems" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AccountingPoliciesLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AccountingPoliciesLineItems" xml:lang="en-US">Accounting Policies [Line Items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AccountingPoliciesLineItems" xml:lang="en-US">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AccountingPoliciesLineItems" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AccountingPoliciesLineItems"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_PercentageThresholdLimitOfRevenue" xlink:label="loc_2I0HHGGF8208_ucbi_PercentageThresholdLimitOfRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageThresholdLimitOfRevenue" xml:lang="en-US">Percentage Threshold Limit Of Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageThresholdLimitOfRevenue" xml:lang="en-US">Threshold limit of revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageThresholdLimitOfRevenue" xml:lang="en-US">This element represents percentage threshold limit of revenue.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_PercentageThresholdLimitOfRevenue" xlink:to="lab_4K2JJIIH0420_ucbi_PercentageThresholdLimitOfRevenue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_NumberOfOperatingSegments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NumberOfOperatingSegments" xml:lang="en-US">Number of Operating Segments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NumberOfOperatingSegments" xml:lang="en-US">Number of operating segment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_NumberOfOperatingSegments" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_NumberOfOperatingSegments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_2I0HHGGF8208_us-gaap_ConcentrationRiskPercentage1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ConcentrationRiskPercentage1" xml:lang="en-US">Concentration Risk, Percentage</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ConcentrationRiskPercentage1" xml:lang="en-US">Concentration risk, percentage</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ConcentrationRiskPercentage1" xlink:to="lab_4K2JJIIH0420_us-gaap_ConcentrationRiskPercentage1"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MinimumNonaccrualLoanAmountNeededForEvaluationOfSpecificReserves" xlink:label="loc_I9G01G3G9932937HF776_ucbi_MinimumNonaccrualLoanAmountNeededForEvaluationOfSpecificReserves"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MinimumNonaccrualLoanAmountNeededForEvaluationOfSpecificReserves" xml:lang="en-US">Minimum Nonaccrual Loan Amount Needed for Evaluation of Specific Reserves</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MinimumNonaccrualLoanAmountNeededForEvaluationOfSpecificReserves" xml:lang="en-US">Minimum nonaccrual loan relationships</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MinimumNonaccrualLoanAmountNeededForEvaluationOfSpecificReserves" xml:lang="en-US">This element represents minimum nonaccrual loan amount needed for evaluation of specific reserves.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_MinimumNonaccrualLoanAmountNeededForEvaluationOfSpecificReserves" xlink:to="lab_K1I23I5I1154159JH998_ucbi_MinimumNonaccrualLoanAmountNeededForEvaluationOfSpecificReserves"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDepreciationMethods" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PropertyPlantAndEquipmentDepreciationMethods"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PropertyPlantAndEquipmentDepreciationMethods" xml:lang="en-US">us-gaap_PropertyPlantAndEquipmentDepreciationMethods</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PropertyPlantAndEquipmentDepreciationMethods" xml:lang="en-US">Depreciation method used</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PropertyPlantAndEquipmentDepreciationMethods" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PropertyPlantAndEquipmentDepreciationMethods"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xlink:label="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xml:lang="en-US">us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xml:lang="en-US">Estimated useful lives</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xlink:to="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansReceivableCommercialAcquisition" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoansReceivableCommercialAcquisition"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansReceivableCommercialAcquisition" xml:lang="en-US">Loans Receivable, Gross, Commercial, Acquisition</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansReceivableCommercialAcquisition" xml:lang="en-US">Loans received through acquisition</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoansReceivableCommercialAcquisition" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoansReceivableCommercialAcquisition"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1" xlink:label="loc_2I0HHGGF8208_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1" xml:lang="en-US">Cumulative Effect on Retained Earnings, Net of Tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1" xml:lang="en-US">Net gains from changes in fair value of loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1" xml:lang="en-US">Cumulative effect adjustment to retained earnings, net of income tax effect</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1" xlink:to="lab_4K2JJIIH0420_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesFutureMinimumPaymentsDue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xml:lang="en-US">Operating Leases, Future Minimum Payments Due</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xml:lang="en-US">Present value of future minimum lease payments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xml:lang="en-US">Total</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationFromAociCurrentPeriodTax" xlink:label="loc_2I0HHGGF8208_us-gaap_ReclassificationFromAociCurrentPeriodTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ReclassificationFromAociCurrentPeriodTax" xml:lang="en-US">Reclassification from AOCI, Current Period, Tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ReclassificationFromAociCurrentPeriodTax" xml:lang="en-US">Change in recorded income tax expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ReclassificationFromAociCurrentPeriodTax" xlink:to="lab_4K2JJIIH0420_us-gaap_ReclassificationFromAociCurrentPeriodTax"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xml:lang="en-US">Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xml:lang="en-US">Statutory federal income tax rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FutureFederalStatutoryIncomeTaxRate" xlink:label="loc_2I0HHGGF8208_ucbi_FutureFederalStatutoryIncomeTaxRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FutureFederalStatutoryIncomeTaxRate" xml:lang="en-US">Future Federal Statutory Income Tax Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FutureFederalStatutoryIncomeTaxRate" xml:lang="en-US">Corporate income tax rate effective in 2018</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FutureFederalStatutoryIncomeTaxRate" xml:lang="en-US">Represents future federal statutory income tax rate effective in 2018.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FutureFederalStatutoryIncomeTaxRate" xlink:to="lab_4K2JJIIH0420_ucbi_FutureFederalStatutoryIncomeTaxRate"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedAxis" xlink:label="loc_I9G01G3G9932937HF776_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedAxis" xml:lang="en-US">Fair Value Of Purchased Assets And Assumed Liabilities Recorded [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedAxis" xml:lang="en-US">Represents purchased assets and assumed liabilities were recorded at their acquisition date fair values.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedAxis" xlink:to="lab_K1I23I5I1154159JH998_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedAxis"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedDomain" xlink:label="loc_2I0HHGGF8208_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedDomain" xml:lang="en-US">Fair Value Of Purchased Assets And Assumed Liabilities Recorded [Domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedDomain" xml:lang="en-US">Represents information of purchased assets and assumed liabilities were recorded at their acquisition date fair values.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedDomain" xlink:to="lab_4K2JJIIH0420_ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AsRecordedByFourOaksFinCorpIncMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByFourOaksFinCorpIncMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByFourOaksFinCorpIncMember" xml:lang="en-US">As Recorded By Four Oaks Fincorp Inc [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByFourOaksFinCorpIncMember" xml:lang="en-US">As Recorded by Four Oaks FinCorp, Inc</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByFourOaksFinCorpIncMember" xml:lang="en-US">Represents information pertaining to information as Recorded by Four Oaks FinCorp, Inc.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByFourOaksFinCorpIncMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByFourOaksFinCorpIncMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FairValueAdjustmentsTidelandsMember" xlink:label="loc_2I0HHGGF8208_ucbi_FairValueAdjustmentsTidelandsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueAdjustmentsTidelandsMember" xml:lang="en-US">Fair Value Adjustments Tidelands [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueAdjustmentsTidelandsMember" xml:lang="en-US">Fair Value Adjustments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueAdjustmentsTidelandsMember" xml:lang="en-US">Represents a fair Value Adjustments for Tidelands acquisition.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FairValueAdjustmentsTidelandsMember" xlink:to="lab_4K2JJIIH0420_ucbi_FairValueAdjustmentsTidelandsMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AsRecordedByUnitedMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByUnitedMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByUnitedMember" xml:lang="en-US">As Recorded By United [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByUnitedMember" xml:lang="en-US">As Recorded by United</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByUnitedMember" xml:lang="en-US">Represents value as Recorded by United.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByUnitedMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByUnitedMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_2I0HHGGF8208_dei_LegalEntityAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_dei_LegalEntityAxis" xml:lang="en-US">Legal Entity [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_dei_LegalEntityAxis" xlink:to="lab_4K2JJIIH0420_dei_LegalEntityAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_I9G01G3G9932937HF776_dei_EntityDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_dei_EntityDomain" xml:lang="en-US">Entity [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_dei_EntityDomain" xlink:to="lab_K1I23I5I1154159JH998_dei_EntityDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FourOaksBankMember" xlink:label="loc_2I0HHGGF8208_ucbi_FourOaksBankMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FourOaksBankMember" xml:lang="en-US">Four Oaks Bank [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FourOaksBankMember" xml:lang="en-US">Four Oaks Bank</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FourOaksBankMember" xml:lang="en-US">Represents information regarding Four Oaks Bank.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FourOaksBankMember" xlink:to="lab_4K2JJIIH0420_ucbi_FourOaksBankMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract" xml:lang="en-US">Assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xml:lang="en-US">Cash and cash equivalents</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities" xml:lang="en-US">Securities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansHeldForSale" xlink:label="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansHeldForSale"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansHeldForSale" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Loans Held For Sale</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansHeldForSale" xml:lang="en-US">Loans held for sale</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansHeldForSale" xml:lang="en-US">Represents amount of loans held for sale recognized as of the acquisition date.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansHeldForSale" xlink:to="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansHeldForSale"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xml:lang="en-US">Loans, net</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xml:lang="en-US">Premises and equipment, net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xml:lang="en-US">Premises and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBankOwnedLifeInsurance" xlink:label="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBankOwnedLifeInsurance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBankOwnedLifeInsurance" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Bank Owned Life Insurance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBankOwnedLifeInsurance" xml:lang="en-US">Bank owned life insurance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBankOwnedLifeInsurance" xml:lang="en-US">Represents amount of Bank owned life insurance recognized as of the acquisition date.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBankOwnedLifeInsurance" xlink:to="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBankOwnedLifeInsurance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent" xml:lang="en-US">Net deferred tax asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent" xml:lang="en-US">Increase in deferred tax asset due to merger and acquisition</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent" xml:lang="en-US">Net deferred tax asset</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xml:lang="en-US">Intangibles</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xml:lang="en-US">Core deposit intangible</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned" xlink:label="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Real Estate Owned</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned" xml:lang="en-US">Other real estate owned</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned" xml:lang="en-US">Represents amount of Other real estate owned expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned" xlink:to="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherRealEstateOwned"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets" xml:lang="en-US">Other assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xml:lang="en-US">Total assets acquired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xml:lang="en-US">Assets acquired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xml:lang="en-US">Total assets acquired</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract" xml:lang="en-US">Liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits" xlink:label="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits" xml:lang="en-US">Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits" xml:lang="en-US">Represents amount of deposit recognized as of the acquisition date.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits" xlink:to="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRepurchaseAgreements" xlink:label="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRepurchaseAgreements"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRepurchaseAgreements" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Repurchase Agreements</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRepurchaseAgreements" xml:lang="en-US">Repurchase agreements</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRepurchaseAgreements" xml:lang="en-US">Represents amount of repurchase agreements due after one year or the normal operating cycle, if longer, assumed at the acquisition date.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRepurchaseAgreements" xlink:to="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRepurchaseAgreements"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalHomeLoanBankAdvances" xlink:label="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalHomeLoanBankAdvances"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalHomeLoanBankAdvances" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Federal Home Loan Bank Advances</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalHomeLoanBankAdvances" xml:lang="en-US">Federal Home Loan Bank advances</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalHomeLoanBankAdvances" xml:lang="en-US">Represents amount of Federal Home Loan Bank advances recognized as of the acquisition date.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalHomeLoanBankAdvances" xlink:to="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFederalHomeLoanBankAdvances"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt" xml:lang="en-US">Long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther" xml:lang="en-US">Other liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xml:lang="en-US">Total liabilities assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xml:lang="en-US">Liabilities assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xml:lang="en-US">Total liabilities assumed</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedExcessOfAssetsAcquiredOverLiabilitiesAssumed" xlink:label="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedExcessOfAssetsAcquiredOverLiabilitiesAssumed"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedExcessOfAssetsAcquiredOverLiabilitiesAssumed" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Excess Of Assets Acquired Over Liabilities Assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedExcessOfAssetsAcquiredOverLiabilitiesAssumed" xml:lang="en-US">Excess of assets acquired over liabilities assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedExcessOfAssetsAcquiredOverLiabilitiesAssumed" xml:lang="en-US">Represents amount recognized for assets including goodwill in excess of (less than) the aggregate liabilities assumed.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedExcessOfAssetsAcquiredOverLiabilitiesAssumed" xlink:to="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedExcessOfAssetsAcquiredOverLiabilitiesAssumed"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AggregateFairValueAdjustments" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AggregateFairValueAdjustments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AggregateFairValueAdjustments" xml:lang="en-US">Aggregate Fair Value Adjustments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AggregateFairValueAdjustments" xml:lang="en-US">Aggregate fair value adjustments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AggregateFairValueAdjustments" xml:lang="en-US">Aggregate fair value adjustments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AggregateFairValueAdjustments" xml:lang="en-US">Represents aggregate fair value adjustments.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AggregateFairValueAdjustments" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AggregateFairValueAdjustments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xml:lang="en-US">Excess of assets acquired over liabilities and preferred stock assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xml:lang="en-US">Net assets acquired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xml:lang="en-US">Total identifiable net assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xml:lang="en-US">Total identifiable net assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationConsiderationTransferredAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationConsiderationTransferredAbstract" xml:lang="en-US">Business Combination, Consideration Transferred [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationConsiderationTransferredAbstract" xml:lang="en-US">Consideration transferred</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationConsiderationTransferredAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationConsiderationTransferredAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xml:lang="en-US">Value of common stock issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xml:lang="en-US">Common stock issued (2,370,331 shares)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xml:lang="en-US">Common stock issued (8,700,012 shares)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xml:lang="en-US">Common stock issued (4,145,343 shares)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveTerseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xml:lang="en-US">Common stock issued (2,358,503 shares)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessAcquisitionCashPaymentToRedeemCommonStock" xlink:label="loc_I9G01G3G9932937HF776_ucbi_BusinessAcquisitionCashPaymentToRedeemCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessAcquisitionCashPaymentToRedeemCommonStock" xml:lang="en-US">Business Acquisition Cash Payment To Redeem Common Stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessAcquisitionCashPaymentToRedeemCommonStock" xml:lang="en-US">Cash paid to redeem common stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessAcquisitionCashPaymentToRedeemCommonStock" xml:lang="en-US">Represents business acquisition cash payment to redeem common stock.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_BusinessAcquisitionCashPaymentToRedeemCommonStock" xlink:to="lab_K1I23I5I1154159JH998_ucbi_BusinessAcquisitionCashPaymentToRedeemCommonStock"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessAcquisitionCashPaymentToRedeemPreferredStock" xlink:label="loc_2I0HHGGF8208_ucbi_BusinessAcquisitionCashPaymentToRedeemPreferredStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessAcquisitionCashPaymentToRedeemPreferredStock" xml:lang="en-US">Business Acquisition Cash Payment To Redeem Preferred Stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessAcquisitionCashPaymentToRedeemPreferredStock" xml:lang="en-US">Cash paid to redeem preferred stock including unpaid dividends</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessAcquisitionCashPaymentToRedeemPreferredStock" xml:lang="en-US">Cash paid to redeem preferred stock issued under the Treasury's Capital Purchase Program</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessAcquisitionCashPaymentToRedeemPreferredStock" xml:lang="en-US">Represents business acquisition cash payment to redeem preferred stock.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BusinessAcquisitionCashPaymentToRedeemPreferredStock" xlink:to="lab_4K2JJIIH0420_ucbi_BusinessAcquisitionCashPaymentToRedeemPreferredStock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationConsiderationTransferred1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationConsiderationTransferred1" xml:lang="en-US">Business Combination, Consideration Transferred</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationConsiderationTransferred1" xml:lang="en-US">Total fair value of consideration transferred</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationConsiderationTransferred1" xml:lang="en-US">Total consideration transferred</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationConsiderationTransferred1" xml:lang="en-US">Total fair value of consideration transferred</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationConsiderationTransferred1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationConsiderationTransferred1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_2I0HHGGF8208_us-gaap_Goodwill"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_Goodwill" xml:lang="en-US">Goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_Goodwill" xml:lang="en-US">Goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_Goodwill" xml:lang="en-US">Goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_Goodwill" xml:lang="en-US">Goodwill, net of Accumulated Impairment Losses, beginning of year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_Goodwill" xml:lang="en-US">Goodwill, net of Accumulated Impairment Losses, end of year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_Goodwill" xlink:to="lab_4K2JJIIH0420_us-gaap_Goodwill"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xml:lang="en-US">Business Acquisition, Equity Interest Issued or Issuable, Number of Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xml:lang="en-US">Number of common stock issued</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xml:lang="en-US">Common stock issued</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AcquiredLoanPortfolioAxis" xlink:label="loc_2I0HHGGF8208_ucbi_AcquiredLoanPortfolioAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_AcquiredLoanPortfolioAxis" xml:lang="en-US">Acquired Loan Portfolio [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_AcquiredLoanPortfolioAxis" xml:lang="en-US">Represents categorization of acquired loan portfolio.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_AcquiredLoanPortfolioAxis" xlink:to="lab_4K2JJIIH0420_ucbi_AcquiredLoanPortfolioAxis"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AcquiredLoanPortfolioDomain" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AcquiredLoanPortfolioDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AcquiredLoanPortfolioDomain" xml:lang="en-US">Acquired Loan Portfolio [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AcquiredLoanPortfolioDomain" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AcquiredLoanPortfolioDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AccountedForPursuantToAsc31030Member" xlink:label="loc_2I0HHGGF8208_ucbi_AccountedForPursuantToAsc31030Member"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_AccountedForPursuantToAsc31030Member" xml:lang="en-US">Accounted For Pursuant To Asc 310 30 [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_AccountedForPursuantToAsc31030Member" xml:lang="en-US">Accounted for pursuant to ASC 310-30</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_AccountedForPursuantToAsc31030Member" xlink:to="lab_4K2JJIIH0420_ucbi_AccountedForPursuantToAsc31030Member"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ExcludedFromAsc31030Member" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ExcludedFromAsc31030Member"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExcludedFromAsc31030Member" xml:lang="en-US">Excluded From Asc 310 30 [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExcludedFromAsc31030Member" xml:lang="en-US">Excluded from ASC 310-30</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ExcludedFromAsc31030Member" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ExcludedFromAsc31030Member"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition" xlink:label="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition" xml:lang="en-US">Certain Loans Acquired in Transfer Accounted for as Held-to-maturity Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition" xml:lang="en-US">Contractually required principal and interest</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition" xlink:to="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferNonaccretableDifference" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferNonaccretableDifference"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferNonaccretableDifference" xml:lang="en-US">Certain Loans Acquired in Transfer, Nonaccretable Difference</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferNonaccretableDifference" xml:lang="en-US">Non-accretable difference</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferNonaccretableDifference" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferNonaccretableDifference"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition" xlink:label="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition" xml:lang="en-US">Certain Loans Acquired in Transfer Accounted for as Held-to-maturity Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition" xml:lang="en-US">Cash flows expected to be collected</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition" xml:lang="en-US">Cash flows expected to be collected</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition" xlink:to="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferAccretableYield" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferAccretableYield"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccretableYield" xml:lang="en-US">Certain Loans Acquired in Transfer, Accretable Yield</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccretableYield" xml:lang="en-US">Accretable yield</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccretableYield" xml:lang="en-US">Accretable yield</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccretableYield" xml:lang="en-US">Accretable yield</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferAccretableYield" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccretableYield"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue" xlink:label="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue" xml:lang="en-US">Certain Loans Acquired in Transfer Accounted for as Held-to-maturity Debt Securities, Acquired During Period, at Acquisition, at Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue" xml:lang="en-US">Fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue" xml:lang="en-US">Fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue" xlink:to="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsHeldToMaturityDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationAcquiredReceivablesFairValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationAcquiredReceivablesFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationAcquiredReceivablesFairValue" xml:lang="en-US">Business Combination, Acquired Receivables, Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationAcquiredReceivablesFairValue" xml:lang="en-US">Fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationAcquiredReceivablesFairValue" xml:lang="en-US">Fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationAcquiredReceivablesFairValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationAcquiredReceivablesFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount" xml:lang="en-US">Business Combination, Acquired Receivables, Gross Contractual Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount" xml:lang="en-US">Gross contractual amounts receivable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount" xml:lang="en-US">Gross contractual amount of loans receivable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount" xml:lang="en-US">Gross contractual amounts receivable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible" xml:lang="en-US">Business Combination, Acquired Receivables, Estimated Uncollectible</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible" xml:lang="en-US">Estimate of contractual cash flows not expected to be collected</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible" xml:lang="en-US">Estimate of contractual cash flows not expected to be collected</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_HorryCountyStateBankMember" xlink:label="loc_2I0HHGGF8208_ucbi_HorryCountyStateBankMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_HorryCountyStateBankMember" xml:lang="en-US">Horry County State Bank [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_HorryCountyStateBankMember" xml:lang="en-US">Horry county state bank</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_HorryCountyStateBankMember" xlink:to="lab_4K2JJIIH0420_ucbi_HorryCountyStateBankMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AsRecordedByHorryCountyStateBankMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByHorryCountyStateBankMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByHorryCountyStateBankMember" xml:lang="en-US">As Recorded By Horry County State Bank [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByHorryCountyStateBankMember" xml:lang="en-US">As Recorded by Horry County State Bank</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByHorryCountyStateBankMember" xml:lang="en-US">Represent As recorded by Horry County State Bank.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByHorryCountyStateBankMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByHorryCountyStateBankMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FairValueAdjustmentsMember" xlink:label="loc_2I0HHGGF8208_ucbi_FairValueAdjustmentsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueAdjustmentsMember" xml:lang="en-US">Fair Value Adjustments [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueAdjustmentsMember" xml:lang="en-US">Fair Value Adjustments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueAdjustmentsMember" xml:lang="en-US">Represents Fair ValueAdjustments recorded.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FairValueAdjustmentsMember" xlink:to="lab_4K2JJIIH0420_ucbi_FairValueAdjustmentsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1" xml:lang="en-US">Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1" xml:lang="en-US">Equity interest in HCSB held before the business combination</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_PalmettoBancsharesIncMember" xlink:label="loc_2I0HHGGF8208_ucbi_PalmettoBancsharesIncMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_PalmettoBancsharesIncMember" xml:lang="en-US">Palmetto Bancshares Inc [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_PalmettoBancsharesIncMember" xml:lang="en-US">Palmetto Bancshares, Inc, from September 1, 2015 - December 31, 2015</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_PalmettoBancsharesIncMember" xml:lang="en-US">Palmetto Bancshares, Inc.</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_PalmettoBancsharesIncMember" xml:lang="en-US">Represents Palmetto Bancshares, Inc.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_PalmettoBancsharesIncMember" xlink:to="lab_4K2JJIIH0420_ucbi_PalmettoBancsharesIncMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AsRecordedByTidelandsBancsharesIncMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByTidelandsBancsharesIncMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByTidelandsBancsharesIncMember" xml:lang="en-US">As Recorded By Tidelands Bancshares Inc [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByTidelandsBancsharesIncMember" xml:lang="en-US">As Recorded By Tidelands Bancshares Inc</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByTidelandsBancsharesIncMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByTidelandsBancsharesIncMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TidelandsBankMember" xlink:label="loc_2I0HHGGF8208_ucbi_TidelandsBankMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_TidelandsBankMember" xml:lang="en-US">Tidelands Bank [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_TidelandsBankMember" xml:lang="en-US">Tidelands Bank</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_TidelandsBankMember" xml:lang="en-US">Represents information about Tidelands Bank, a legal entity.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_TidelandsBankMember" xlink:to="lab_4K2JJIIH0420_ucbi_TidelandsBankMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AsRecordedByPalmettoBancsharesIncMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByPalmettoBancsharesIncMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByPalmettoBancsharesIncMember" xml:lang="en-US">As Recorded By Palmetto Bancshares Inc [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByPalmettoBancsharesIncMember" xml:lang="en-US">As Recorded by Palmetto</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByPalmettoBancsharesIncMember" xml:lang="en-US">Represents information regarding Palmetto Bancshares, Inc.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AsRecordedByPalmettoBancsharesIncMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AsRecordedByPalmettoBancsharesIncMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermBorrowings" xlink:label="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermBorrowings"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermBorrowings" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Short Term Borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermBorrowings" xml:lang="en-US">Short-term borrowings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermBorrowings" xml:lang="en-US">Represents amount of Short-term borrowings recognized as of the acquisition date.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermBorrowings" xlink:to="lab_4K2JJIIH0420_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermBorrowings"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FirstNationalBankMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_FirstNationalBankMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FirstNationalBankMember" xml:lang="en-US">First National Bank [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FirstNationalBankMember" xml:lang="en-US">FNB</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FirstNationalBankMember" xml:lang="en-US">Represents information about First National Bank.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_FirstNationalBankMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_FirstNationalBankMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AsRecordedByMoneyTreeMember" xlink:label="loc_2I0HHGGF8208_ucbi_AsRecordedByMoneyTreeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_AsRecordedByMoneyTreeMember" xml:lang="en-US">As Recorded By Money Tree [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_AsRecordedByMoneyTreeMember" xml:lang="en-US">As Recorded by MoneyTree</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_AsRecordedByMoneyTreeMember" xml:lang="en-US">Represents value as Recorded byMoney Tree.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_AsRecordedByMoneyTreeMember" xlink:to="lab_4K2JJIIH0420_ucbi_AsRecordedByMoneyTreeMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSblfPreferredStockAssumed" xlink:label="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSblfPreferredStockAssumed"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSblfPreferredStockAssumed" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Sblf Preferred Stock Assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSblfPreferredStockAssumed" xml:lang="en-US">SBLF preferred stock assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSblfPreferredStockAssumed" xml:lang="en-US">Represents amount of SBLF preferred stock obligation assumed at the acquisition date.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSblfPreferredStockAssumed" xlink:to="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSblfPreferredStockAssumed"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Actual Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Total revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Total revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Actual Net income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Net income/loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Net income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xml:lang="en-US">Net Income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessAcquisitionsProFormaRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionsProFormaRevenue" xml:lang="en-US">Business Acquisition, Pro Forma Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionsProFormaRevenue" xml:lang="en-US">Supplemental consolidated pro forma Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionsProFormaRevenue" xml:lang="en-US">2015 supplemental consolidated pro forma</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionsProFormaRevenue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xml:lang="en-US">Business Acquisition, Pro Forma Net Income (Loss)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xml:lang="en-US">2014 supplemental consolidated pro forma from January 1, 2014 - December 31, 2014</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xml:lang="en-US">Supplemental consolidated pro forma Net Income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xml:lang="en-US">Finite-Lived Intangible Assets by Major Class [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xml:lang="en-US">Finite-Lived Intangible Assets, Major Class Name [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CoreDepositsMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CoreDepositsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CoreDepositsMember" xml:lang="en-US">Core Deposits [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CoreDepositsMember" xml:lang="en-US">Core deposit intangible</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CoreDepositsMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CoreDepositsMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DepositPremiumMember" xlink:label="loc_2I0HHGGF8208_ucbi_DepositPremiumMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DepositPremiumMember" xml:lang="en-US">Deposit Premium [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DepositPremiumMember" xml:lang="en-US">Deposit premium</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DepositPremiumMember" xml:lang="en-US">Represents information about deposit premium.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DepositPremiumMember" xlink:to="lab_4K2JJIIH0420_ucbi_DepositPremiumMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_RangeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_RangeAxis" xml:lang="en-US">Range [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_RangeAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_RangeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_2I0HHGGF8208_us-gaap_RangeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RangeMember" xml:lang="en-US">Range [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_RangeMember" xlink:to="lab_4K2JJIIH0420_us-gaap_RangeMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_MinimumMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MinimumMember" xml:lang="en-US">Minimum [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MinimumMember" xml:lang="en-US">Minimum</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_MinimumMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_MinimumMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_2I0HHGGF8208_us-gaap_MaximumMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_MaximumMember" xml:lang="en-US">Maximum [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_MaximumMember" xml:lang="en-US">Maximum</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_MaximumMember" xlink:to="lab_4K2JJIIH0420_us-gaap_MaximumMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentAxis" xml:lang="en-US">Debt Instrument [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_DebtInstrumentNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DebtInstrumentNameDomain" xml:lang="en-US">Debt Instrument, Name [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DebtInstrumentNameDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_DebtInstrumentNameDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TrustPreferredSecuritiesMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_TrustPreferredSecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TrustPreferredSecuritiesMember" xml:lang="en-US">Trust Preferred Securities [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TrustPreferredSecuritiesMember" xml:lang="en-US">Total trust preferred securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TrustPreferredSecuritiesMember" xml:lang="en-US">Trust preferred securities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TrustPreferredSecuritiesMember" xml:lang="en-US">Represents information of trust preferred securities.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_TrustPreferredSecuritiesMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_TrustPreferredSecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_LongtermDebtTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LongtermDebtTypeAxis" xml:lang="en-US">Long-term Debt, Type [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LongtermDebtTypeAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_LongtermDebtTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LongtermDebtTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LongtermDebtTypeDomain" xml:lang="en-US">Long-term Debt, Type [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LongtermDebtTypeDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LongtermDebtTypeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubordinatedDebtMember" xlink:label="loc_2I0HHGGF8208_us-gaap_SubordinatedDebtMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SubordinatedDebtMember" xml:lang="en-US">Subordinated Debt [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SubordinatedDebtMember" xml:lang="en-US">Subordinated notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SubordinatedDebtMember" xml:lang="en-US">Subordinated debentures</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SubordinatedDebtMember" xlink:to="lab_4K2JJIIH0420_us-gaap_SubordinatedDebtMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_NumberOfBranches" xlink:label="loc_I9G01G3G9932937HF776_ucbi_NumberOfBranches"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NumberOfBranches" xml:lang="en-US">Number Of Branches</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NumberOfBranches" xml:lang="en-US">Number of branches</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NumberOfBranches" xml:lang="en-US">Represents number of branches operated by entity.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_NumberOfBranches" xlink:to="lab_K1I23I5I1154159JH998_ucbi_NumberOfBranches"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionSharePrice" xlink:label="loc_2I0HHGGF8208_us-gaap_BusinessAcquisitionSharePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionSharePrice" xml:lang="en-US">Business Acquisition, Share Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionSharePrice" xml:lang="en-US">Cash per common share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BusinessAcquisitionSharePrice" xlink:to="lab_4K2JJIIH0420_us-gaap_BusinessAcquisitionSharePrice"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationPreferredStockLiabilityAssumed" xlink:label="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationPreferredStockLiabilityAssumed"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationPreferredStockLiabilityAssumed" xml:lang="en-US">Business Combination Preferred Stock Liability Assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationPreferredStockLiabilityAssumed" xml:lang="en-US">Preferred stock assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationPreferredStockLiabilityAssumed" xml:lang="en-US">Represents Business Combination preferred stock liability obligation assumed.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationPreferredStockLiabilityAssumed" xlink:to="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationPreferredStockLiabilityAssumed"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1" xlink:label="loc_2I0HHGGF8208_us-gaap_FinitelivedIntangibleAssetsAcquired1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinitelivedIntangibleAssetsAcquired1" xml:lang="en-US">Finite-lived Intangible Assets Acquired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinitelivedIntangibleAssetsAcquired1" xml:lang="en-US">Intangible assets acquired</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinitelivedIntangibleAssetsAcquired1" xlink:to="lab_4K2JJIIH0420_us-gaap_FinitelivedIntangibleAssetsAcquired1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xml:lang="en-US">Acquired Finite-lived Intangible Assets, Weighted Average Useful Life</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xml:lang="en-US">Expected useful life of asset</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_WeightedAverageMaturityOfUnderlyingDeposits" xlink:label="loc_2I0HHGGF8208_ucbi_WeightedAverageMaturityOfUnderlyingDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_WeightedAverageMaturityOfUnderlyingDeposits" xml:lang="en-US">Weighted Average Maturity Of Underlying Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_WeightedAverageMaturityOfUnderlyingDeposits" xml:lang="en-US">Weighted average maturity of underlying deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_WeightedAverageMaturityOfUnderlyingDeposits" xml:lang="en-US">Represents weighted average maturity of the underlying deposits.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_WeightedAverageMaturityOfUnderlyingDeposits" xlink:to="lab_4K2JJIIH0420_ucbi_WeightedAverageMaturityOfUnderlyingDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillPurchaseAccountingAdjustments" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_GoodwillPurchaseAccountingAdjustments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillPurchaseAccountingAdjustments" xml:lang="en-US">Goodwill, Purchase Accounting Adjustments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillPurchaseAccountingAdjustments" xml:lang="en-US">Increase in goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillPurchaseAccountingAdjustments" xml:lang="en-US">Measurement period adjustments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_GoodwillPurchaseAccountingAdjustments" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_GoodwillPurchaseAccountingAdjustments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_2I0HHGGF8208_us-gaap_PreferredStockSharesOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PreferredStockSharesOutstanding" xml:lang="en-US">Preferred Stock, Shares Outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PreferredStockSharesOutstanding" xml:lang="en-US">Number preferred stock shares outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PreferredStockSharesOutstanding" xml:lang="en-US">Preferred stock, shares outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PreferredStockSharesOutstanding" xlink:to="lab_4K2JJIIH0420_us-gaap_PreferredStockSharesOutstanding"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockLiquidationPreference" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PreferredStockLiquidationPreference"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockLiquidationPreference" xml:lang="en-US">Preferred Stock, Liquidation Preference Per Share</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockLiquidationPreference" xml:lang="en-US">Liquidation preference amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockLiquidationPreference" xml:lang="en-US">Liquidation preference amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PreferredStockLiquidationPreference" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockLiquidationPreference"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAcquiredLoans" xlink:label="loc_2I0HHGGF8208_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAcquiredLoans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAcquiredLoans" xml:lang="en-US">Business Combination Provisional Information Initial Accounting Incomplete Adjustment Acquired Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAcquiredLoans" xml:lang="en-US">Increase in provisional values assigned to acquired loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAcquiredLoans" xml:lang="en-US">This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to acquired loans in connection with a business combination for which the initial accounting was incomplete.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAcquiredLoans" xlink:to="lab_4K2JJIIH0420_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAcquiredLoans"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment" xml:lang="en-US">Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment" xml:lang="en-US">Decrease in provisional values assigned to premises and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherRealEstateOwned" xlink:label="loc_2I0HHGGF8208_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherRealEstateOwned"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherRealEstateOwned" xml:lang="en-US">Business Combination Provisional Information Initial Accounting Incomplete Adjustment Other Real Estate Owned</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherRealEstateOwned" xml:lang="en-US">Decrease in provisional values assigned to other real estate owned</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherRealEstateOwned" xml:lang="en-US">This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to other real estate owned in connection with a business combination for which the initial accounting was incomplete.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherRealEstateOwned" xlink:to="lab_4K2JJIIH0420_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherRealEstateOwned"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets" xlink:label="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets" xml:lang="en-US">Business Combination Provisional Information Initial Accounting Incomplete Adjustment Other Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets" xml:lang="en-US">Decrease in provisional values assigned to other assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets" xml:lang="en-US">This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to other assets in connection with a business combination for which the initial accounting was incomplete.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets" xlink:to="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillSubsequentRecognitionOfDeferredTaxAsset" xlink:label="loc_2I0HHGGF8208_us-gaap_GoodwillSubsequentRecognitionOfDeferredTaxAsset"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_GoodwillSubsequentRecognitionOfDeferredTaxAsset" xml:lang="en-US">Goodwill, Subsequent Recognition of Deferred Tax Asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_GoodwillSubsequentRecognitionOfDeferredTaxAsset" xml:lang="en-US">Increase in deferred tax asset</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_GoodwillSubsequentRecognitionOfDeferredTaxAsset" xlink:to="lab_4K2JJIIH0420_us-gaap_GoodwillSubsequentRecognitionOfDeferredTaxAsset"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedNoncompeteAgreementsGross" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedNoncompeteAgreementsGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedNoncompeteAgreementsGross" xml:lang="en-US">Finite-Lived Noncompete Agreements, Gross</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedNoncompeteAgreementsGross" xml:lang="en-US">Noncompete agreement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedNoncompeteAgreementsGross" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedNoncompeteAgreementsGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xml:lang="en-US">Finite-Lived Intangible Asset, Useful Life</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xml:lang="en-US">Useful life of intangible asset</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:to="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CashFlowTable" xlink:label="loc_I9G01G3G9932937HF776_ucbi_CashFlowTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CashFlowTable" xml:lang="en-US">Cash Flow [Table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CashFlowTable" xml:lang="en-US">Disclosure of information about cash flow.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_CashFlowTable" xlink:to="lab_K1I23I5I1154159JH998_ucbi_CashFlowTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_AwardTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AwardTypeAxis" xml:lang="en-US">Award Type [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AwardTypeAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_AwardTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xml:lang="en-US">Equity Award [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_2I0HHGGF8208_us-gaap_PreferredStockMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PreferredStockMember" xml:lang="en-US">Preferred Stock [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PreferredStockMember" xml:lang="en-US">Preferred Stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PreferredStockMember" xlink:to="lab_4K2JJIIH0420_us-gaap_PreferredStockMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CashFlowLineItems" xlink:label="loc_I9G01G3G9932937HF776_ucbi_CashFlowLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CashFlowLineItems" xml:lang="en-US">Cash Flow [Line Items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CashFlowLineItems" xml:lang="en-US">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_CashFlowLineItems" xlink:to="lab_K1I23I5I1154159JH998_ucbi_CashFlowLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransferToOtherRealEstate" xlink:label="loc_2I0HHGGF8208_us-gaap_TransferToOtherRealEstate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TransferToOtherRealEstate" xml:lang="en-US">Real Estate Owned, Transfer to Real Estate Owned</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TransferToOtherRealEstate" xml:lang="en-US">Transferred to foreclosed property</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TransferToOtherRealEstate" xlink:to="lab_4K2JJIIH0420_us-gaap_TransferToOtherRealEstate"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_UnsettledSalesOfGovernmentGuaranteedLoans" xlink:label="loc_I9G01G3G9932937HF776_ucbi_UnsettledSalesOfGovernmentGuaranteedLoans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_UnsettledSalesOfGovernmentGuaranteedLoans" xml:lang="en-US">Unsettled Sales Of Government Guaranteed Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_UnsettledSalesOfGovernmentGuaranteedLoans" xml:lang="en-US">Unsettled sales of government guaranteed loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_UnsettledSalesOfGovernmentGuaranteedLoans" xml:lang="en-US">Represents unsettled sales of government guaranteed loans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_UnsettledSalesOfGovernmentGuaranteedLoans" xlink:to="lab_K1I23I5I1154159JH998_ucbi_UnsettledSalesOfGovernmentGuaranteedLoans"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_UnsettledPurchasesOfGovernmentGuaranteedLoans" xlink:label="loc_2I0HHGGF8208_ucbi_UnsettledPurchasesOfGovernmentGuaranteedLoans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_UnsettledPurchasesOfGovernmentGuaranteedLoans" xml:lang="en-US">Unsettled Purchases Of Government Guaranteed Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_UnsettledPurchasesOfGovernmentGuaranteedLoans" xml:lang="en-US">Unsettled purchases of government guaranteed loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_UnsettledPurchasesOfGovernmentGuaranteedLoans" xml:lang="en-US">Represents unsettled purchase of government guaranteed loans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_UnsettledPurchasesOfGovernmentGuaranteedLoans" xlink:to="lab_4K2JJIIH0420_ucbi_UnsettledPurchasesOfGovernmentGuaranteedLoans"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOfAssetsAcquired" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueOfAssetsAcquired"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueOfAssetsAcquired" xml:lang="en-US">Fair Value of Assets Acquired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueOfAssetsAcquired" xml:lang="en-US">Assets with fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueOfAssetsAcquired" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueOfAssetsAcquired"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAssumed1" xlink:label="loc_2I0HHGGF8208_us-gaap_LiabilitiesAssumed1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LiabilitiesAssumed1" xml:lang="en-US">Liabilities Assumed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LiabilitiesAssumed1" xml:lang="en-US">Liabilities with fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LiabilitiesAssumed1" xlink:to="lab_4K2JJIIH0420_us-gaap_LiabilitiesAssumed1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross" xml:lang="en-US">Securities Purchased under Agreements to Resell, Gross</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross" xml:lang="en-US">Repurchase and reverse repurchase agreements, gross amounts of recognized assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability" xlink:label="loc_2I0HHGGF8208_us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability" xml:lang="en-US">Securities Purchased under Agreements to Resell, Liability</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability" xml:lang="en-US">Repurchase and reverse repurchase agreements gross amounts offset on balance sheet assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability" xml:lang="en-US">Repurchase and reverse repurchase agreements, gross amounts offset on balance sheet assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability" xlink:to="lab_4K2JJIIH0420_us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResell" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SecuritiesPurchasedUnderAgreementsToResell"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesPurchasedUnderAgreementsToResell" xml:lang="en-US">Securities Purchased under Agreements to Resell</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesPurchasedUnderAgreementsToResell" xml:lang="en-US">Repurchase and reverse repurchase agreements, net assets balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SecuritiesPurchasedUnderAgreementsToResell" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesPurchasedUnderAgreementsToResell"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfFinancialInstruments" xlink:label="loc_2I0HHGGF8208_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfFinancialInstruments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfFinancialInstruments" xml:lang="en-US">Repurchase And Reverse Repurchase Agreements Gross Amounts Not Offset In Balance Sheet Assets Of Financial Instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfFinancialInstruments" xml:lang="en-US">Repurchase and reverse repurchase agreements, gross amounts not offset in balance sheet assets of financial instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfFinancialInstruments" xml:lang="en-US">This element represents amount of gross amounts not offset in the balance sheet assets related to repurchase and reverse repurchase agreements of financial instruments.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfFinancialInstruments" xlink:to="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfFinancialInstruments"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfCollateralReceived" xlink:label="loc_I9G01G3G9932937HF776_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfCollateralReceived"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfCollateralReceived" xml:lang="en-US">Repurchase And Reverse Repurchase Agreements Gross Amounts Not Offset In Balance Sheet Assets Of Collateral Received</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfCollateralReceived" xml:lang="en-US">Repurchase and reverse repurchase agreements, gross amounts not offset in balance sheet assets of collateral received</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfCollateralReceived" xml:lang="en-US">This element represents amount of gross amounts not offset in the balance sheet assets related to repurchase and reverse repurchase agreements of collateral received.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfCollateralReceived" xlink:to="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetAssetsOfCollateralReceived"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_RepurchaseAndReverseRepurchaseAgreementsNetAssets" xlink:label="loc_2I0HHGGF8208_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetAssets" xml:lang="en-US">Repurchase And Reverse Repurchase Agreements Net Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetAssets" xml:lang="en-US">Repurchase and reverse repurchase agreements, net assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetAssets" xml:lang="en-US">This element represents amount of net assets related to repurchase and reverse repurchase agreements.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetAssets" xlink:to="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeFairValueOfDerivativeAsset"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFairValueOfDerivativeAsset" xml:lang="en-US">Derivative Asset, Fair Value, Gross Asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFairValueOfDerivativeAsset" xml:lang="en-US">Derivative, gross amounts of recognized assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeFairValueOfDerivativeAsset" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFairValueOfDerivativeAsset"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral" xml:lang="en-US">Derivative Asset, Fair Value, Amount Offset Against Collateral</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral" xml:lang="en-US">Derivative, gross amounts offset on balance sheet</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral" xml:lang="en-US">Derivative Asset, Fair Value, Amount Not Offset Against Collateral</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral" xml:lang="en-US">Derivatives, net asset balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction" xml:lang="en-US">Derivative Asset, Not Offset, Policy Election Deduction</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction" xml:lang="en-US">Derivative, gross amounts not off set in balance sheet assets of financial instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction" xml:lang="en-US">Derivatives, gross amounts not offset in balance sheet assets of financial instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetFairValueOfCollateral" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeAssetFairValueOfCollateral"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetFairValueOfCollateral" xml:lang="en-US">Derivative Asset, Fair Value of Collateral</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetFairValueOfCollateral" xml:lang="en-US">Derivative, gross amounts not off set in balance sheet assets of collateral received</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetFairValueOfCollateral" xml:lang="en-US">Derivatives, gross amounts not offset in balance sheet assets of collateral received</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeAssetFairValueOfCollateral" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetFairValueOfCollateral"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xml:lang="en-US">Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xml:lang="en-US">Derivatives asset, net amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross" xml:lang="en-US">Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Gross</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross" xml:lang="en-US">Offsetting assets, gross amounts of recognized assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability" xml:lang="en-US">Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Liability</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability" xml:lang="en-US">Offsetting assets gross amounts offset on balance sheet</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability" xml:lang="en-US">Offsetting assets, gross amounts offset on balance sheet</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed" xml:lang="en-US">Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed" xml:lang="en-US">Offsetting assets, net asset balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction" xml:lang="en-US">Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Not Offset, Policy Election Deduction</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction" xml:lang="en-US">Offsetting assets, gross amounts not offset in balance sheet of financial instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction" xml:lang="en-US">Offsetting assets, gross amounts not offset in balance sheet of financial instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral" xml:lang="en-US">Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Amount Offset Against Collateral, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral" xml:lang="en-US">Offsetting assets, gross amounts not offset in the balance sheet of collateral received</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral" xml:lang="en-US">Offsetting assets, gross amounts not offset in the balance sheet of collateral received</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral" xml:lang="en-US">Offsetting assets, gross amounts not offset in the balance sheet of collateral received</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xml:lang="en-US">Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xml:lang="en-US">Offsetting assets, net amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsAssets" xlink:label="loc_I9G01G3G9932937HF776_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsAssets" xml:lang="en-US">Weighted Average Interest Rate Of Reverse Repurchase Agreements Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsAssets" xml:lang="en-US">Weighted average interest rate of reverse repurchase agreements assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsAssets" xml:lang="en-US">This element represents percentage of weighted average interest rate of reverse repurchase agreements related to assets.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsAssets" xlink:to="lab_K1I23I5I1154159JH998_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross" xlink:label="loc_2I0HHGGF8208_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross" xml:lang="en-US">Securities Sold under Agreements to Repurchase, Gross</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross" xml:lang="en-US">Gross amount of recognized liabilities for repurchase agreements in offsetting disclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross" xml:lang="en-US">Repurchase and reverse repurchase agreements, gross amounts of recognized liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross" xlink:to="lab_4K2JJIIH0420_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset" xml:lang="en-US">Securities Sold under Agreements to Repurchase, Asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset" xml:lang="en-US">Repurchase and reverse repurchase agreements gross amounts offset on balance sheet liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset" xml:lang="en-US">Repurchase and reverse repurchase agreements, gross amounts offset on balance sheet liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchase" xlink:label="loc_2I0HHGGF8208_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase" xml:lang="en-US">Securities Sold under Agreements to Repurchase</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase" xml:lang="en-US">Repurchase and reverse repurchase agreements net liabilities balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase" xml:lang="en-US">Repurchase and reverse repurchase agreements, net liabilities balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase" xlink:to="lab_4K2JJIIH0420_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetLiabilitiesOfFinancialInstruments" xlink:label="loc_I9G01G3G9932937HF776_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetLiabilitiesOfFinancialInstruments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetLiabilitiesOfFinancialInstruments" xml:lang="en-US">Repurchase And Reverse Repurchase Agreements Gross Amounts Not Offset In Balance Sheet Liabilities Of Financial Instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetLiabilitiesOfFinancialInstruments" xml:lang="en-US">Repurchase and reverse repurchase agreements, gross amounts not offset in balance sheet liabilities of financial instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetLiabilitiesOfFinancialInstruments" xml:lang="en-US">This element represents amount of gross amounts not offset in the balance sheet liabilities related to repurchase and reverse repurchase agreements of financial instruments.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetLiabilitiesOfFinancialInstruments" xlink:to="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffsetInBalanceSheetLiabilitiesOfFinancialInstruments"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfCollateralPledged" xlink:label="loc_2I0HHGGF8208_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfCollateralPledged"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfCollateralPledged" xml:lang="en-US">Repurchase And Reverse Repurchase Agreements Gross Amounts Not Off Set In Balance Sheet Liabilities Of Collateral Pledged</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfCollateralPledged" xml:lang="en-US">Repurchase and reverse repurchase agreements, gross amounts not offset in balance sheet liabilities of collateral pledged</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfCollateralPledged" xml:lang="en-US">This element represents amount of gross amounts not offset in the balance sheet liabilities related to repurchase and reverse repurchase agreements of collateral pledged.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfCollateralPledged" xlink:to="lab_4K2JJIIH0420_ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfCollateralPledged"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_RepurchaseAndReverseRepurchaseAgreementsNetLiabilities" xlink:label="loc_I9G01G3G9932937HF776_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetLiabilities" xml:lang="en-US">Repurchase And Reverse Repurchase Agreements Net Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetLiabilities" xml:lang="en-US">Repurchase and reverse repurchase agreements, net liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetLiabilities" xml:lang="en-US">This element represents amount of net liabilities related to repurchase and reverse repurchase agreements.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetLiabilities" xlink:to="lab_K1I23I5I1154159JH998_ucbi_RepurchaseAndReverseRepurchaseAgreementsNetLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeFairValueOfDerivativeLiability"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeFairValueOfDerivativeLiability" xml:lang="en-US">Derivative Liability, Fair Value, Gross Liability</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeFairValueOfDerivativeLiability" xml:lang="en-US">Derivatives liability, gross amounts of recognized liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeFairValueOfDerivativeLiability" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeFairValueOfDerivativeLiability"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral" xml:lang="en-US">Derivative Liability, Fair Value, Amount Offset Against Collateral</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral" xml:lang="en-US">Derivatives liability, gross amounts offset on balance sheet liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral" xml:lang="en-US">Derivative Liability, Fair Value, Amount Not Offset Against Collateral, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral" xml:lang="en-US">Derivatives liability, net liabilities balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction" xml:lang="en-US">Derivative Liability, Not Offset, Policy Election Deduction</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction" xml:lang="en-US">Derivative liability, gross amounts not off set in balance sheet liabilities of financial instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction" xml:lang="en-US">Derivatives liability, gross amounts not offset in balance sheet liabilities of financial instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilityFairValueOfCollateral" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilityFairValueOfCollateral"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilityFairValueOfCollateral" xml:lang="en-US">Derivative Liability, Fair Value of Collateral</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilityFairValueOfCollateral" xml:lang="en-US">Derivative liability, gross amounts not off set in balance sheet liabilities of collateral pledged</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilityFairValueOfCollateral" xml:lang="en-US">Derivatives liability, gross amounts not offset in balance sheet liabilities of collateral pledged</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilityFairValueOfCollateral" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilityFairValueOfCollateral"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xml:lang="en-US">Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xml:lang="en-US">Derivatives liabilities, net amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross" xml:lang="en-US">Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Gross</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross" xml:lang="en-US">Offsetting liabilities, gross amounts of recognized liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset" xml:lang="en-US">Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset" xml:lang="en-US">Offsetting liabilities, gross amounts offset on balance sheet</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset" xml:lang="en-US">Offsetting liabilities, gross amounts offset on balance sheet</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned" xml:lang="en-US">Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned" xml:lang="en-US">Offsetting liabilities, net liabilities balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction" xml:lang="en-US">Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Not Offset, Policy Election Deduction</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction" xml:lang="en-US">Offsetting liabilities gross, amounts not offset in balance sheet of financial instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction" xml:lang="en-US">Offsetting liabilities gross, amounts not offset in balance sheet of financial instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral" xml:lang="en-US">Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Amount Offset Against Collateral, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral" xml:lang="en-US">Offsetting liabilities gross amounts not offset in the balance sheet of collateral pledged</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral" xml:lang="en-US">Offsetting liabilities, gross amounts not offset in the balance sheet of collateral pledged</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xml:lang="en-US">Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xml:lang="en-US">Amounts related to agreements not included in offsetting disclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xml:lang="en-US">Offsetting liabilities, net amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsLiabilities" xlink:label="loc_2I0HHGGF8208_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsLiabilities" xml:lang="en-US">Weighted Average Interest Rate Of Reverse Repurchase Agreements Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsLiabilities" xml:lang="en-US">Weighted average interest rate of reverse repurchase agreements liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsLiabilities" xml:lang="en-US">This element represents percentage of weighted average interest rate of reverse repurchase agreements related to liabilities.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsLiabilities" xlink:to="lab_4K2JJIIH0420_ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAssetsSoldUnderAgreementsToRepurchaseTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfAssetsSoldUnderAgreementsToRepurchaseTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfAssetsSoldUnderAgreementsToRepurchaseTable" xml:lang="en-US">Schedule of Assets Sold under Agreements to Repurchase [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfAssetsSoldUnderAgreementsToRepurchaseTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfAssetsSoldUnderAgreementsToRepurchaseTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis" xml:lang="en-US">Repurchase Agreements and Similar Transactions, Maturity Periods [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain" xml:lang="en-US">Repurchase Agreements and Similar Transactions, Maturity Periods [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaturityOvernightMember" xlink:label="loc_2I0HHGGF8208_us-gaap_MaturityOvernightMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_MaturityOvernightMember" xml:lang="en-US">Maturity Overnight [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_MaturityOvernightMember" xml:lang="en-US">Overnight and Continuous</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_MaturityOvernightMember" xlink:to="lab_4K2JJIIH0420_us-gaap_MaturityOvernightMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaturityUpTo30DaysMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_MaturityUpTo30DaysMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MaturityUpTo30DaysMember" xml:lang="en-US">Maturity Less than 30 Days [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MaturityUpTo30DaysMember" xml:lang="en-US">Up to 30 Days</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_MaturityUpTo30DaysMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_MaturityUpTo30DaysMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Maturity30To90DaysMember" xlink:label="loc_2I0HHGGF8208_us-gaap_Maturity30To90DaysMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_Maturity30To90DaysMember" xml:lang="en-US">Maturity 30 to 90 Days [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_Maturity30To90DaysMember" xml:lang="en-US">30 to 90 Days</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_Maturity30To90DaysMember" xlink:to="lab_4K2JJIIH0420_us-gaap_Maturity30To90DaysMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaturityOver90DaysMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_MaturityOver90DaysMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MaturityOver90DaysMember" xml:lang="en-US">Maturity Greater than 90 Days [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MaturityOver90DaysMember" xml:lang="en-US">91 to 110 days</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_MaturityOver90DaysMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_MaturityOver90DaysMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xml:lang="en-US">Major Types of Debt and Equity Securities [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xml:lang="en-US">Major Types of Debt and Equity Securities [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgageBackedSecuritiesMember" xlink:label="loc_2I0HHGGF8208_us-gaap_MortgageBackedSecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_MortgageBackedSecuritiesMember" xml:lang="en-US">Collateralized Mortgage Backed Securities [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_MortgageBackedSecuritiesMember" xml:lang="en-US">Mortgage-backed securities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_MortgageBackedSecuritiesMember" xlink:to="lab_4K2JJIIH0420_us-gaap_MortgageBackedSecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsSoldUnderAgreementsToRepurchaseLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AssetsSoldUnderAgreementsToRepurchaseLineItems"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract" xml:lang="en-US">Available-for-sale Securities, Debt Maturities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract" xml:lang="en-US">Amortized cost and fair value of held to maturity and available for sale securities by contractual maturity</label>
<label xlink:type="resource" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Available-for-Sale</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xml:lang="en-US">Amortized Cost, Within 1 year</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:label="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, within One Year, Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xml:lang="en-US">Fair Value, Within 1 year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:to="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost" xml:lang="en-US">Amortized Cost, 1 to 5 years</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:label="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xml:lang="en-US">Fair Value, 1 to 5 years</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:to="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost" xml:lang="en-US">Amortized Cost, 5 to 10 years</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:label="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xml:lang="en-US">Fair Value, 5 to 10 years</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:to="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost" xml:lang="en-US">Amortized Cost, More than 10 years</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue" xlink:label="loc_2I0HHGGF8208_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue" xml:lang="en-US">Fair Value, More than 10 years</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities [Abstract]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount" xml:lang="en-US">Amortized Cost, Within 1 year</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue" xml:lang="en-US">Fair Value, Within 1 year</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquitySecuritiesIndustryMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_EquitySecuritiesIndustryMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EquitySecuritiesIndustryMember" xml:lang="en-US">Industry Sector [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_EquitySecuritiesIndustryMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_EquitySecuritiesIndustryMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommercialAndIndustrialSectorMember" xlink:label="loc_2I0HHGGF8208_us-gaap_CommercialAndIndustrialSectorMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CommercialAndIndustrialSectorMember" xml:lang="en-US">Commercial and Industrial Sector [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CommercialAndIndustrialSectorMember" xml:lang="en-US">Commercial &amp; industrial</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CommercialAndIndustrialSectorMember" xlink:to="lab_4K2JJIIH0420_us-gaap_CommercialAndIndustrialSectorMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis" xml:lang="en-US">Class of Financing Receivable [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain" xml:lang="en-US">Class of Financing Receivable [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_OwnerOccupiedCommercialRealEstateMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_OwnerOccupiedCommercialRealEstateMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OwnerOccupiedCommercialRealEstateMember" xml:lang="en-US">Owner Occupied Commercial Real Estate [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OwnerOccupiedCommercialRealEstateMember" xml:lang="en-US">Commercial real estate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OwnerOccupiedCommercialRealEstateMember" xml:lang="en-US">Owner occupied commercial real estate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OwnerOccupiedCommercialRealEstateMember" xml:lang="en-US">Represents information of owner occupied commercial real estate.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_OwnerOccupiedCommercialRealEstateMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_OwnerOccupiedCommercialRealEstateMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_IncomeProducingCommercialRealEstateMember" xlink:label="loc_2I0HHGGF8208_ucbi_IncomeProducingCommercialRealEstateMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_IncomeProducingCommercialRealEstateMember" xml:lang="en-US">Income Producing Commercial Real Estate [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_IncomeProducingCommercialRealEstateMember" xml:lang="en-US">Income producing commercial real estate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_IncomeProducingCommercialRealEstateMember" xml:lang="en-US">Property that represents income producing commercial real estate.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_IncomeProducingCommercialRealEstateMember" xlink:to="lab_4K2JJIIH0420_ucbi_IncomeProducingCommercialRealEstateMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResidentialMortgageMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ResidentialMortgageMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ResidentialMortgageMember" xml:lang="en-US">Residential Mortgage [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ResidentialMortgageMember" xml:lang="en-US">Residential mortgage servicing rights</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ResidentialMortgageMember" xml:lang="en-US">Residential mortgage</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ResidentialMortgageMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ResidentialMortgageMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HomeEquityMember" xlink:label="loc_2I0HHGGF8208_us-gaap_HomeEquityMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_HomeEquityMember" xml:lang="en-US">Home Equity Line of Credit [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_HomeEquityMember" xml:lang="en-US">Home equity lines of credit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_HomeEquityMember" xlink:to="lab_4K2JJIIH0420_us-gaap_HomeEquityMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConstructionLoansMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ConstructionLoansMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ConstructionLoansMember" xml:lang="en-US">Construction Loans [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ConstructionLoansMember" xml:lang="en-US">Construction Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ConstructionLoansMember" xml:lang="en-US">Construction</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ConstructionLoansMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ConstructionLoansMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AutomobileLoanMember" xlink:label="loc_2I0HHGGF8208_us-gaap_AutomobileLoanMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AutomobileLoanMember" xml:lang="en-US">Automobile Loan [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AutomobileLoanMember" xml:lang="en-US">Indirect auto</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AutomobileLoanMember" xlink:to="lab_4K2JJIIH0420_us-gaap_AutomobileLoanMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableDisclosureLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableDisclosureLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableDisclosureLineItems" xml:lang="en-US">Loans and Leases Receivable Disclosure [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableDisclosureLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableDisclosureLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetReportedAmountAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableNetReportedAmountAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableNetReportedAmountAbstract" xml:lang="en-US">Loans And Leases Receivable Net Reported Amount [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableNetReportedAmountAbstract" xml:lang="en-US">Classifications of loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableNetReportedAmountAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableNetReportedAmountAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldMovementScheduleRollForward" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldMovementScheduleRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldMovementScheduleRollForward" xml:lang="en-US">Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldMovementScheduleRollForward" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldMovementScheduleRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield" xlink:label="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield" xml:lang="en-US">Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield" xml:lang="en-US">Balance at beginning of period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield" xml:lang="en-US">Balance at end of period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield" xlink:to="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAdditions" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAdditions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAdditions" xml:lang="en-US">Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Additions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAdditions" xml:lang="en-US">Additions due to acquisitions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAdditions" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAdditions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion" xlink:label="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion" xml:lang="en-US">Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Accretion</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion" xml:lang="en-US">Accretion</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion" xml:lang="en-US">Accretion</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion" xlink:to="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference" xml:lang="en-US">Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference" xml:lang="en-US">Reclassification from nonaccretable difference</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ChangesInExpectedCashFlowsThatDoNotAffectNonaccretableDifference" xlink:label="loc_2I0HHGGF8208_ucbi_ChangesInExpectedCashFlowsThatDoNotAffectNonaccretableDifference"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ChangesInExpectedCashFlowsThatDoNotAffectNonaccretableDifference" xml:lang="en-US">Changes In Expected Cash Flows That Do Not Affect Nonaccretable Difference</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ChangesInExpectedCashFlowsThatDoNotAffectNonaccretableDifference" xml:lang="en-US">Changes in expected cash flows that do not affect nonaccretable difference</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ChangesInExpectedCashFlowsThatDoNotAffectNonaccretableDifference" xml:lang="en-US">Represents changes in expected cash flows that do not affect nonaccretable difference.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ChangesInExpectedCashFlowsThatDoNotAffectNonaccretableDifference" xlink:to="lab_4K2JJIIH0420_ucbi_ChangesInExpectedCashFlowsThatDoNotAffectNonaccretableDifference"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xml:lang="en-US">Schedule of Accounts, Notes, Loans and Financing Receivable [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xml:lang="en-US">Related Party Transactions By Related Party [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_RelatedPartyDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_RelatedPartyDomain" xml:lang="en-US">Related Party [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_RelatedPartyDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_RelatedPartyDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ExecutiveOfficersAndDirectorsMember" xlink:label="loc_2I0HHGGF8208_ucbi_ExecutiveOfficersAndDirectorsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ExecutiveOfficersAndDirectorsMember" xml:lang="en-US">Executive Officers and Directors [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ExecutiveOfficersAndDirectorsMember" xml:lang="en-US">Executive Officers and Directors</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ExecutiveOfficersAndDirectorsMember" xml:lang="en-US">Represents information of executive officers and directors.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ExecutiveOfficersAndDirectorsMember" xlink:to="lab_4K2JJIIH0420_ucbi_ExecutiveOfficersAndDirectorsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccountsNotesAndLoansReceivableLineItems" xml:lang="en-US">Accounts, Notes, Loans and Financing Receivable [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableRelatedPartiesRollForward" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableRelatedPartiesRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableRelatedPartiesRollForward" xml:lang="en-US">Loans and Leases Receivable, Related Parties [Roll Forward]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableRelatedPartiesRollForward" xml:lang="en-US">Summary of loans outstanding to executive officers and directors of the holding company</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableRelatedPartiesRollForward" xlink:to="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableRelatedPartiesRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableRelatedParties" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableRelatedParties"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableRelatedParties" xml:lang="en-US">Loans and Leases Receivable, Related Parties</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableRelatedParties" xml:lang="en-US">Balance at beginning of period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableRelatedParties" xml:lang="en-US">Balance at end of period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableRelatedParties" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableRelatedParties"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions" xml:lang="en-US">Loans and Leases Receivable, Related Parties, Additions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions" xml:lang="en-US">New loans and advances</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions" xlink:to="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds" xml:lang="en-US">Loans and Leases Receivable, Related Parties, Proceeds</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds" xml:lang="en-US">Repayments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable" xml:lang="en-US">Schedule of Financing Receivable, Allowance for Credit Losses [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowancesAndReservesTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowancesAndReservesTypeAxis" xml:lang="en-US">Valuation Allowances and Reserves Type [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowancesAndReservesTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_ValuationAllowancesAndReservesDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ValuationAllowancesAndReservesDomain" xml:lang="en-US">Valuation Allowances and Reserves [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ValuationAllowancesAndReservesDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_ValuationAllowancesAndReservesDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AllowanceForUnfundedLoanCommitmentMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AllowanceForUnfundedLoanCommitmentMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AllowanceForUnfundedLoanCommitmentMember" xml:lang="en-US">Allowance For Unfunded Loan Commitment [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AllowanceForUnfundedLoanCommitmentMember" xml:lang="en-US">Allowance for unfunded commitments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AllowanceForUnfundedLoanCommitmentMember" xml:lang="en-US">Represents information about allowance for unfunded loan commitment.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AllowanceForUnfundedLoanCommitmentMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AllowanceForUnfundedLoanCommitmentMember"/>




<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses [Roll Forward]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLosses" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLosses" xml:lang="en-US">Allowance for credit losses, Ending Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLosses" xml:lang="en-US">Allowance for Loan Losses, Ending balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLosses" xml:lang="en-US">Beginning Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLosses" xml:lang="en-US">Ending Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableAllowanceForCreditLosses" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses, Write-downs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs" xml:lang="en-US">Charge-Offs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs" xml:lang="en-US">Charge-Offs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs" xml:lang="en-US">Charge-Offs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses, Recovery</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery" xml:lang="en-US">Recoveries</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1" xml:lang="en-US">Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1" xml:lang="en-US">Allowance for Loan Losses, Individually evaluated for impairment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1" xml:lang="en-US">Allowance for loan losses allocated</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment" xml:lang="en-US">Allowance for Loan Losses,Collectively evaluated for impairment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses" xlink:label="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses" xml:lang="en-US">Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses" xml:lang="en-US">Allowance for Loan Losses, PCI</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses" xlink:to="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment" xml:lang="en-US">Loans Outstanding, Collectively evaluated for impairment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet" xml:lang="en-US">Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet" xml:lang="en-US">Carrying value of PCI loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet" xml:lang="en-US">PCI</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet" xml:lang="en-US">Loans Outstanding, PCI</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansAbstract" xlink:label="loc_2I0HHGGF8208_ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansAbstract" xml:lang="en-US">Average Balances of Impaired Loans and Income Recognized on Impaired Loans [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_AverageBalancesOfImpairedLoansAndIncomeRecognizedOnImpairedLoansAbstract" xml:lang="en-US">Average balances of impaired loans and income recognized on impaired loans</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment" xml:lang="en-US">Impaired Financing Receivable Average Recorded Investment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment" xml:lang="en-US">Average Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod" xlink:label="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod" xml:lang="en-US">Impaired Financing Receivable Interest Income Accrual Method</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod" xml:lang="en-US">Interest Revenue Recognized During Impairment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod" xlink:to="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod" xml:lang="en-US">Impaired Financing Receivable Interest Income Cash Basis Method</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod" xml:lang="en-US">Cash Basis Interest Revenue Received</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfImpairedFinancingReceivableTable" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfImpairedFinancingReceivableTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfImpairedFinancingReceivableTable" xml:lang="en-US">Schedule of Impaired Financing Receivable [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfImpairedFinancingReceivableTable" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfImpairedFinancingReceivableTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableImpairedLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableImpairedLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableImpairedLineItems" xml:lang="en-US">Financing Receivable, Impaired [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableImpairedLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableImpairedLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract" xml:lang="en-US">Financing Receivable, Recorded Investment, Aging [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract" xml:lang="en-US">Loans individually evaluated for impairment by class of loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract" xml:lang="en-US">Recorded investment in nonaccrual loans by loan class</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance" xml:lang="en-US">Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance" xml:lang="en-US">Unpaid Principal Balance, With no related allowance recorded</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment" xlink:label="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment" xml:lang="en-US">Impaired Financing Receivable, with No Related Allowance, Recorded Investment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment" xml:lang="en-US">Recorded Investment, With no related allowance recorded</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment" xlink:to="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance" xml:lang="en-US">Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance" xml:lang="en-US">Unpaid Principal Balance, With an allowance recorded</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment" xlink:label="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment" xml:lang="en-US">Impaired Financing Receivable, with Related Allowance, Recorded Investment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment" xml:lang="en-US">Recorded Investment, With an allowance recorded</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment" xlink:to="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableRelatedAllowance" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableRelatedAllowance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableRelatedAllowance" xml:lang="en-US">Impaired Financing Receivable, Related Allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableRelatedAllowance" xml:lang="en-US">Allowance for loan losses, With an allowance recorded</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableRelatedAllowance" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableRelatedAllowance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance" xlink:label="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance" xml:lang="en-US">Impaired Financing Receivable Unpaid Principal Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance" xml:lang="en-US">Unpaid Principal Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance" xlink:to="lab_4K2JJIIH0420_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableRecordedInvestment" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableRecordedInvestment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableRecordedInvestment" xml:lang="en-US">Impaired Financing Receivable, Recorded Investment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableRecordedInvestment" xml:lang="en-US">Recorded Investment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ImpairedFinancingReceivableRecordedInvestment" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ImpairedFinancingReceivableRecordedInvestment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFinancingReceivablesPastDueTable" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfFinancingReceivablesPastDueTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFinancingReceivablesPastDueTable" xml:lang="en-US">Schedule of Financing Receivables Past Due [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfFinancingReceivablesPastDueTable" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfFinancingReceivablesPastDueTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems"/>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablesPeriodPastDueAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivablesPeriodPastDueAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivablesPeriodPastDueAxis" xml:lang="en-US">Financing Receivables, Period Past Due [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivablesPeriodPastDueAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivablesPeriodPastDueAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivablesPeriodPastDueDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivablesPeriodPastDueDomain" xml:lang="en-US">Financing Receivables, Period Past Due [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivablesPeriodPastDueDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivablesPeriodPastDueDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivables30To59DaysPastDueMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivables30To59DaysPastDueMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivables30To59DaysPastDueMember" xml:lang="en-US">Financing Receivables, 30 to 59 Days Past Due [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivables30To59DaysPastDueMember" xml:lang="en-US">Loans Past Due, 30 - 59 Days</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivables30To59DaysPastDueMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivables30To59DaysPastDueMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivables60To89DaysPastDueMember" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivables60To89DaysPastDueMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivables60To89DaysPastDueMember" xml:lang="en-US">Financing Receivables, 60 to 89 Days Past Due [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivables60To89DaysPastDueMember" xml:lang="en-US">Loans Past Due, 60 - 89 Days</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivables60To89DaysPastDueMember" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivables60To89DaysPastDueMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember" xml:lang="en-US">Financing Receivables, Equal to Greater than 90 Days Past Due [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember" xml:lang="en-US">Loans Past Due, &gt; 90 Days</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDue" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableRecordedInvestmentPastDue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentPastDue" xml:lang="en-US">Financing Receivable, Recorded Investment, Past Due</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentPastDue" xml:lang="en-US">Loans, Total Past Due</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentPastDue" xml:lang="en-US">Loans, Total Past Due</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableRecordedInvestmentPastDue" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableRecordedInvestmentPastDue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentCurrent" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableRecordedInvestmentCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableRecordedInvestmentCurrent" xml:lang="en-US">Financing Receivable, Recorded Investment, Current</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableRecordedInvestmentCurrent" xml:lang="en-US">Loans Not Past Due</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableRecordedInvestmentCurrent" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableRecordedInvestmentCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable" xml:lang="en-US">Schedule of Financing Receivable, Troubled Debt Restructurings [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoanRestructuringModificationAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoanRestructuringModificationAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoanRestructuringModificationAxis" xml:lang="en-US">Loan Restructuring Modification [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoanRestructuringModificationAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoanRestructuringModificationAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoanRestructuringModificationDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_LoanRestructuringModificationDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoanRestructuringModificationDomain" xml:lang="en-US">Loan Restructuring Modification [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoanRestructuringModificationDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_LoanRestructuringModificationDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractualInterestRateReductionMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ContractualInterestRateReductionMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ContractualInterestRateReductionMember" xml:lang="en-US">Contractual Interest Rate Reduction [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ContractualInterestRateReductionMember" xml:lang="en-US">Rate Reduction</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ContractualInterestRateReductionMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ContractualInterestRateReductionMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExtendedMaturityMember" xlink:label="loc_2I0HHGGF8208_us-gaap_ExtendedMaturityMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ExtendedMaturityMember" xml:lang="en-US">Extended Maturity [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ExtendedMaturityMember" xml:lang="en-US">Structure</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ExtendedMaturityMember" xlink:to="lab_4K2JJIIH0420_us-gaap_ExtendedMaturityMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_OtherTypeOfModificationMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_OtherTypeOfModificationMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OtherTypeOfModificationMember" xml:lang="en-US">Other Type Of Modification [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OtherTypeOfModificationMember" xml:lang="en-US">Other</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OtherTypeOfModificationMember" xml:lang="en-US">Represents type of modification other not defined elsewhere.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_OtherTypeOfModificationMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_OtherTypeOfModificationMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableModificationsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableModificationsLineItems" xml:lang="en-US">Financing Receivable, Modifications [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableModificationsLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableModificationsLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsNumberOfContracts2" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableModificationsNumberOfContracts2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableModificationsNumberOfContracts2" xml:lang="en-US">Financing Receivable, Modifications, Number of Contracts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableModificationsNumberOfContracts2" xml:lang="en-US">Number of Contracts</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableModificationsNumberOfContracts2" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableModificationsNumberOfContracts2"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2" xml:lang="en-US">Financing Receivable, Modifications, Pre-Modification Recorded Investment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2" xml:lang="en-US">Pre-Modification Outstanding Recorded Investment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2" xml:lang="en-US">Financing Receivable, Modifications, Post-Modification Recorded Investment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2" xml:lang="en-US">Post-Modification Outstanding Recorded Investment by Type of Modification</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1" xml:lang="en-US">Financing Receivable, Modifications, Subsequent Default, Number of Contracts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1" xml:lang="en-US">Troubled Debt Restructurings That Have Subsequently Defaulted, Number of Contracts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1" xml:lang="en-US">Recorded Investment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1" xml:lang="en-US">Financing Receivable, Modifications, Subsequent Default, Recorded Investment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1" xml:lang="en-US">Troubled Debt Restructurings That Have Subsequently Defaulted, Recorded Investment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable" xml:lang="en-US">Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InternalCreditAssessmentAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InternalCreditAssessmentAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InternalCreditAssessmentAxis" xml:lang="en-US">Internal Credit Assessment [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InternalCreditAssessmentAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InternalCreditAssessmentAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InternalCreditAssessmentDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_InternalCreditAssessmentDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InternalCreditAssessmentDomain" xml:lang="en-US">Internal Credit Assessment [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InternalCreditAssessmentDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_InternalCreditAssessmentDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PassMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PassMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PassMember" xml:lang="en-US">Pass [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PassMember" xml:lang="en-US">Pass</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PassMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PassMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_WatchMember" xlink:label="loc_2I0HHGGF8208_ucbi_WatchMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_WatchMember" xml:lang="en-US">Watch [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_WatchMember" xml:lang="en-US">Watch</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_WatchMember" xml:lang="en-US">Represents information of internal credit assessment watch.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_WatchMember" xlink:to="lab_4K2JJIIH0420_ucbi_WatchMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubstandardMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SubstandardMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SubstandardMember" xml:lang="en-US">Substandard [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SubstandardMember" xml:lang="en-US">Substandard</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SubstandardMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SubstandardMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DoubtfulMember" xlink:label="loc_2I0HHGGF8208_us-gaap_DoubtfulMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DoubtfulMember" xml:lang="en-US">Doubtful [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DoubtfulMember" xml:lang="en-US">Doubtful / Loss</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DoubtfulMember" xlink:to="lab_4K2JJIIH0420_us-gaap_DoubtfulMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableRecordedInvestmentLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableRecordedInvestmentLineItems" xml:lang="en-US">Financing Receivable, Recorded Investment [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancingReceivableRecordedInvestmentLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancingReceivableRecordedInvestmentLineItems"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_RiskCategoryOfLoansByClassOfLoansAbstract" xlink:label="loc_2I0HHGGF8208_ucbi_RiskCategoryOfLoansByClassOfLoansAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_RiskCategoryOfLoansByClassOfLoansAbstract" xml:lang="en-US">Risk Category of Loans by Class of Loans [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_RiskCategoryOfLoansByClassOfLoansAbstract" xml:lang="en-US">Risk category of loans by class of loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_RiskCategoryOfLoansByClassOfLoansAbstract" xlink:to="lab_4K2JJIIH0420_ucbi_RiskCategoryOfLoansByClassOfLoansAbstract"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_LoansAndLeasesReceivableExcludingPurchasedCreditImpairedLoans" xlink:label="loc_I9G01G3G9932937HF776_ucbi_LoansAndLeasesReceivableExcludingPurchasedCreditImpairedLoans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_LoansAndLeasesReceivableExcludingPurchasedCreditImpairedLoans" xml:lang="en-US">Loans And Leases Receivable Excluding Purchased Credit Impaired Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_LoansAndLeasesReceivableExcludingPurchasedCreditImpairedLoans" xml:lang="en-US">Total loans, excluding PCI loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_LoansAndLeasesReceivableExcludingPurchasedCreditImpairedLoans" xml:lang="en-US">Represents loans and leases receivable excluding purchased credit impaired loans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_LoansAndLeasesReceivableExcludingPurchasedCreditImpairedLoans" xlink:to="lab_K1I23I5I1154159JH998_ucbi_LoansAndLeasesReceivableExcludingPurchasedCreditImpairedLoans"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_InvestmentTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InvestmentTypeAxis" xml:lang="en-US">Investment Type [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InvestmentTypeAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_InvestmentTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InvestmentTypeCategorizationMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InvestmentTypeCategorizationMember" xml:lang="en-US">Investment Type Categorization [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InvestmentTypeCategorizationMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InvestmentTypeCategorizationMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankCertificatesAndObligationsFHLBMember" xlink:label="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankCertificatesAndObligationsFHLBMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankCertificatesAndObligationsFHLBMember" xml:lang="en-US">Federal Home Loan Bank Certificates and Obligations (FHLB) [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankCertificatesAndObligationsFHLBMember" xml:lang="en-US">FHLB</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankCertificatesAndObligationsFHLBMember" xlink:to="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankCertificatesAndObligationsFHLBMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansPledgedAsCollateral" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoansPledgedAsCollateral"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansPledgedAsCollateral" xml:lang="en-US">Loans Pledged as Collateral</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansPledgedAsCollateral" xml:lang="en-US">Pledged as collateral to secure FHLB advances</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoansPledgedAsCollateral" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoansPledgedAsCollateral"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance" xlink:label="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance" xml:lang="en-US">Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance" xml:lang="en-US">Outstanding balance of PCI loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance" xlink:to="lab_4K2JJIIH0420_us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums" xml:lang="en-US">Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums" xml:lang="en-US">Remaining accretable fair value mark on loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableSignificantPurchases" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancingReceivableSignificantPurchases"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableSignificantPurchases" xml:lang="en-US">Financing Receivable, Significant Purchases</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancingReceivableSignificantPurchases" xml:lang="en-US">Loan purchased</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancingReceivableSignificantPurchases" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancingReceivableSignificantPurchases"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MinimumAmountOfLoanEvaluatedForImpairment" xlink:label="loc_I9G01G3G9932937HF776_ucbi_MinimumAmountOfLoanEvaluatedForImpairment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MinimumAmountOfLoanEvaluatedForImpairment" xml:lang="en-US">Minimum Amount of Loan Evaluated for Impairment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MinimumAmountOfLoanEvaluatedForImpairment" xml:lang="en-US">Criteria amount for evaluation of impairment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MinimumAmountOfLoanEvaluatedForImpairment" xml:lang="en-US">This element represents minimum amount of loan evaluated for impairment.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_MinimumAmountOfLoanEvaluatedForImpairment" xlink:to="lab_K1I23I5I1154159JH998_ucbi_MinimumAmountOfLoanEvaluatedForImpairment"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BankOverdrafts" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BankOverdrafts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BankOverdrafts" xml:lang="en-US">Bank Overdrafts</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BankOverdrafts" xml:lang="en-US">Overdrawn deposit accounts</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BankOverdrafts" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BankOverdrafts"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans" xml:lang="en-US">Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans" xml:lang="en-US">Gross additional interest income that would have been earned if the nonaccrual loans had performed as per original term</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans" xlink:to="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_SpecificReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings" xlink:label="loc_I9G01G3G9932937HF776_ucbi_SpecificReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_SpecificReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings" xml:lang="en-US">Specific Reserves Allocated to Customers Whose Loan Terms Modified in Troubled Debt Restructurings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_SpecificReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings" xml:lang="en-US">Specific reserves</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_SpecificReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings" xml:lang="en-US">This element represents specific reserves allocated to customers whose loan terms modified in troubled debt restructurings.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_SpecificReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings" xlink:to="lab_K1I23I5I1154159JH998_ucbi_SpecificReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend" xml:lang="en-US">Loans and Leases Receivable, Impaired, Commitment to Lend</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend" xml:lang="en-US">Loans outstanding classified as troubled debt restructurings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend" xlink:to="lab_4K2JJIIH0420_us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xml:lang="en-US">Property, Plant and Equipment [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LandAndLandImprovementsMember" xlink:label="loc_2I0HHGGF8208_us-gaap_LandAndLandImprovementsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LandAndLandImprovementsMember" xml:lang="en-US">Land and Land Improvements [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LandAndLandImprovementsMember" xml:lang="en-US">Land and land improvements</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LandAndLandImprovementsMember" xlink:to="lab_4K2JJIIH0420_us-gaap_LandAndLandImprovementsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ConstructionInProgressMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ConstructionInProgressMember" xml:lang="en-US">Construction in Progress [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ConstructionInProgressMember" xml:lang="en-US">Construction in progress</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ConstructionInProgressMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ConstructionInProgressMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentLineItems" xml:lang="en-US">Property, Plant and Equipment [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract" xml:lang="en-US">Property, Plant and Equipment, Net, by Type [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract" xml:lang="en-US">Premises and equipments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentGross" xml:lang="en-US">Property, Plant and Equipment, Gross</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentGross" xml:lang="en-US">Premises and equipments, gross</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PropertyPlantAndEquipmentGross" xlink:to="lab_4K2JJIIH0420_us-gaap_PropertyPlantAndEquipmentGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US">Less accumulated depreciation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US">Less accumulated depreciation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xml:lang="en-US">Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xml:lang="en-US">Rent commitments under operating leases</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xml:lang="en-US">Operating Leases, Future Minimum Payments Due, Next Twelve Months</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xml:lang="en-US">2018</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_2I0HHGGF8208_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due in Two Years</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xml:lang="en-US">2019</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:to="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due in Three Years</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xml:lang="en-US">2020</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_2I0HHGGF8208_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due in Four Years</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xml:lang="en-US">2021</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:to="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due in Five Years</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xml:lang="en-US">2022</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_2I0HHGGF8208_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due Thereafter</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xml:lang="en-US">Thereafter</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:to="lab_4K2JJIIH0420_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationNonproduction" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DepreciationNonproduction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepreciationNonproduction" xml:lang="en-US">Depreciation, Nonproduction</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepreciationNonproduction" xml:lang="en-US">Depreciation expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DepreciationNonproduction" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DepreciationNonproduction"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_RecognizedImpairmentOnPropertiesAcquired" xlink:label="loc_2I0HHGGF8208_ucbi_RecognizedImpairmentOnPropertiesAcquired"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_RecognizedImpairmentOnPropertiesAcquired" xml:lang="en-US">Recognized Impairment On Properties Acquired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_RecognizedImpairmentOnPropertiesAcquired" xml:lang="en-US">Recognized impairment on properties acquired for future expansion</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_RecognizedImpairmentOnPropertiesAcquired" xml:lang="en-US">Represents recognized impairment on properties acquired.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_RecognizedImpairmentOnPropertiesAcquired" xlink:to="lab_4K2JJIIH0420_ucbi_RecognizedImpairmentOnPropertiesAcquired"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesRentExpenseMinimumRentals" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesRentExpenseMinimumRentals"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesRentExpenseMinimumRentals" xml:lang="en-US">Operating Leases, Rent Expense, Minimum Rentals</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesRentExpenseMinimumRentals" xml:lang="en-US">Rent expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OperatingLeasesRentExpenseMinimumRentals" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OperatingLeasesRentExpenseMinimumRentals"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xml:lang="en-US">Schedule of Finite-Lived Intangible Assets [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncompeteAgreementsMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_NoncompeteAgreementsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NoncompeteAgreementsMember" xml:lang="en-US">Noncompete Agreements [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NoncompeteAgreementsMember" xml:lang="en-US">Noncompete agreement</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_NoncompeteAgreementsMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_NoncompeteAgreementsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsLineItems" xml:lang="en-US">Finite-Lived Intangible Assets [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IntangibleAssetsGrossExcludingGoodwill" xml:lang="en-US">Intangible Assets, Gross (Excluding Goodwill)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IntangibleAssetsGrossExcludingGoodwill" xml:lang="en-US">Intangible, gross</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IntangibleAssetsGrossExcludingGoodwill" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xml:lang="en-US">Finite-Lived Intangible Assets, Accumulated Amortization</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xml:lang="en-US">Less: accumulated amortization</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xml:lang="en-US">Less: accumulated amortization</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:to="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsNet" xml:lang="en-US">Finite-Lived Intangible Assets, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsNet" xml:lang="en-US">Total intangibles subject to amortization, net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsNet" xml:lang="en-US">Intangible, net</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="loc_2I0HHGGF8208_us-gaap_GoodwillRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_GoodwillRollForward" xml:lang="en-US">Goodwill [Roll Forward]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_GoodwillRollForward" xlink:to="lab_4K2JJIIH0420_us-gaap_GoodwillRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillGross" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_GoodwillGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillGross" xml:lang="en-US">Goodwill, Gross</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillGross" xml:lang="en-US">Balance, beginning of Year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillGross" xml:lang="en-US">Goodwill balance, beginning of year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillGross" xml:lang="en-US">Goodwill balance, end of year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_GoodwillGross" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_GoodwillGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod" xlink:label="loc_2I0HHGGF8208_us-gaap_GoodwillAcquiredDuringPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_GoodwillAcquiredDuringPeriod" xml:lang="en-US">Goodwill, Acquired During Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_GoodwillAcquiredDuringPeriod" xml:lang="en-US">Acquisition of Tidelands</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_GoodwillAcquiredDuringPeriod" xml:lang="en-US">Goodwill</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_GoodwillAcquiredDuringPeriod" xlink:to="lab_4K2JJIIH0420_us-gaap_GoodwillAcquiredDuringPeriod"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_GoodwillAcquiredDuringPeriodTwo" xlink:label="loc_I9G01G3G9932937HF776_ucbi_GoodwillAcquiredDuringPeriodTwo"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillAcquiredDuringPeriodTwo" xml:lang="en-US">Goodwill Acquired During Period Two</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillAcquiredDuringPeriodTwo" xml:lang="en-US">Acquisition of FOFN</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillAcquiredDuringPeriodTwo" xml:lang="en-US">It represent the Goodwill acquired during period.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_GoodwillAcquiredDuringPeriodTwo" xlink:to="lab_K1I23I5I1154159JH998_ucbi_GoodwillAcquiredDuringPeriodTwo"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_GoodwillAcquiredDuringPeriodThree" xlink:label="loc_2I0HHGGF8208_ucbi_GoodwillAcquiredDuringPeriodThree"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_GoodwillAcquiredDuringPeriodThree" xml:lang="en-US">Goodwill Acquired During Period Three</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_GoodwillAcquiredDuringPeriodThree" xml:lang="en-US">Acquisition of HCSB</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_GoodwillAcquiredDuringPeriodThree" xml:lang="en-US">It represent Goodwill acquired during period.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_GoodwillAcquiredDuringPeriodThree" xlink:to="lab_4K2JJIIH0420_ucbi_GoodwillAcquiredDuringPeriodThree"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xml:lang="en-US">Goodwill, Impaired, Accumulated Impairment Loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xml:lang="en-US">Accumulated impairment losses balance, beginning of year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xml:lang="en-US">Accumulated impairment losses balance, end of year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xml:lang="en-US">Accumulated impairment losses balance, beginning of year</label>
<label xlink:type="resource" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xml:lang="en-US">Accumulated impairment losses balance, end of year</label>
<label xlink:type="resource" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Accumulated impairment losses balance, beginning of year</label>
<label xlink:type="resource" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xml:lang="en-US">Accumulated impairment losses balance, end of year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfTidelands" xlink:label="loc_2I0HHGGF8208_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfTidelands"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfTidelands" xml:lang="en-US">Goodwill Net Of Accumulated Impairment Losses Acquisition Of Tidelands</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfTidelands" xml:lang="en-US">Acquisition of Tidelands</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfTidelands" xml:lang="en-US">Goodwill net of accumulated impairment losses acquisition of tidelands.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfTidelands" xlink:to="lab_4K2JJIIH0420_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfTidelands"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_GoodwillNetOfAccumulatedImpairmentLossesMeasurementPeriodAdjustments" xlink:label="loc_I9G01G3G9932937HF776_ucbi_GoodwillNetOfAccumulatedImpairmentLossesMeasurementPeriodAdjustments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillNetOfAccumulatedImpairmentLossesMeasurementPeriodAdjustments" xml:lang="en-US">Goodwill Net Of Accumulated Impairment Losses Measurement Period Adjustments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillNetOfAccumulatedImpairmentLossesMeasurementPeriodAdjustments" xml:lang="en-US">Increase in goodwill</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillNetOfAccumulatedImpairmentLossesMeasurementPeriodAdjustments" xml:lang="en-US">Measurement period adjustments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillNetOfAccumulatedImpairmentLossesMeasurementPeriodAdjustments" xml:lang="en-US">Goodwill net of accumulated impairment losses measurement period adjustments.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_GoodwillNetOfAccumulatedImpairmentLossesMeasurementPeriodAdjustments" xlink:to="lab_K1I23I5I1154159JH998_ucbi_GoodwillNetOfAccumulatedImpairmentLossesMeasurementPeriodAdjustments"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfFourOaksFincorpInc" xlink:label="loc_2I0HHGGF8208_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfFourOaksFincorpInc"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfFourOaksFincorpInc" xml:lang="en-US">Goodwill Net Of Accumulated Impairment Losses Acquisition Of Four Oaks Fincorp, Inc</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfFourOaksFincorpInc" xml:lang="en-US">Acquisition of FOFN</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfFourOaksFincorpInc" xml:lang="en-US">Goodwill net of accumulated impairment losses acquisition of Four Oaks Fincorp, Inc.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfFourOaksFincorpInc" xlink:to="lab_4K2JJIIH0420_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfFourOaksFincorpInc"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfHCSBFinancialCorporation" xlink:label="loc_I9G01G3G9932937HF776_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfHCSBFinancialCorporation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfHCSBFinancialCorporation" xml:lang="en-US">Goodwill Net Of Accumulated Impairment Losses Acquisition Of HCSB Financial Corporation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfHCSBFinancialCorporation" xml:lang="en-US">Acquisition of HCSB</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfHCSBFinancialCorporation" xml:lang="en-US">Goodwill net of accumulated impairment losses acquisition of HCSB Financial Corporation.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfHCSBFinancialCorporation" xlink:to="lab_K1I23I5I1154159JH998_ucbi_GoodwillNetOfAccumulatedImpairmentLossesAcquisitionOfHCSBFinancialCorporation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xml:lang="en-US">2018</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:to="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Two</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xml:lang="en-US">2019</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Three</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xml:lang="en-US">2020</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:to="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Four</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xml:lang="en-US">2021</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Five</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xml:lang="en-US">2022</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:to="lab_4K2JJIIH0420_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, after Year Five</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xml:lang="en-US">Thereafter</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ForeclosedPropertyTable" xlink:label="loc_2I0HHGGF8208_ucbi_ForeclosedPropertyTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ForeclosedPropertyTable" xml:lang="en-US">Foreclosed Property [Table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ForeclosedPropertyTable" xml:lang="en-US">Represents details of Foreclosed Property.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ForeclosedPropertyTable" xlink:to="lab_4K2JJIIH0420_ucbi_ForeclosedPropertyTable"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ForeclosedPropertyAxis" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ForeclosedPropertyAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ForeclosedPropertyAxis" xml:lang="en-US">Foreclosed Property [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ForeclosedPropertyAxis" xml:lang="en-US">Represents details of Foreclosed Property.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ForeclosedPropertyAxis" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ForeclosedPropertyAxis"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ForeclosedPropertyDomain" xlink:label="loc_2I0HHGGF8208_ucbi_ForeclosedPropertyDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ForeclosedPropertyDomain" xml:lang="en-US">Foreclosed Property [Domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ForeclosedPropertyDomain" xml:lang="en-US">Represents details of Foreclosed Property.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ForeclosedPropertyDomain" xlink:to="lab_4K2JJIIH0420_ucbi_ForeclosedPropertyDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommercialRealEstateMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommercialRealEstateMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommercialRealEstateMember" xml:lang="en-US">Commercial Real Estate [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommercialRealEstateMember" xml:lang="en-US">Commercial Real Estate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CommercialRealEstateMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CommercialRealEstateMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommercialConstructionMember" xlink:label="loc_2I0HHGGF8208_ucbi_CommercialConstructionMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_CommercialConstructionMember" xml:lang="en-US">Commercial Construction [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_CommercialConstructionMember" xml:lang="en-US">Commercial Construction</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_CommercialConstructionMember" xml:lang="en-US">Represents details of Commercial construction.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_CommercialConstructionMember" xlink:to="lab_4K2JJIIH0420_ucbi_CommercialConstructionMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommertialPropertyMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_CommertialPropertyMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommertialPropertyMember" xml:lang="en-US">Commercial Property [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommertialPropertyMember" xml:lang="en-US">Total commercial</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommertialPropertyMember" xml:lang="en-US">Represents details of commercial property.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_CommertialPropertyMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_CommertialPropertyMember"/>





<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ForeclosedPropertyLineItems" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ForeclosedPropertyLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ForeclosedPropertyLineItems" xml:lang="en-US">Foreclosed Property [Line Items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ForeclosedPropertyLineItems" xml:lang="en-US">Represents details of Foreclosed Property.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ForeclosedPropertyLineItems" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ForeclosedPropertyLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RealEstateAcquiredThroughForeclosure" xlink:label="loc_2I0HHGGF8208_us-gaap_RealEstateAcquiredThroughForeclosure"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RealEstateAcquiredThroughForeclosure" xml:lang="en-US">Real Estate Acquired Through Foreclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_RealEstateAcquiredThroughForeclosure" xml:lang="en-US">Total foreclosed property</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_RealEstateAcquiredThroughForeclosure" xlink:to="lab_4K2JJIIH0420_us-gaap_RealEstateAcquiredThroughForeclosure"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetsAtFairValueTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetsAtFairValueTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetsAtFairValueTable" xml:lang="en-US">Schedule of Servicing Assets at Fair Value [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetsAtFairValueTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetsAtFairValueTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancialInstrumentAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancialInstrumentAxis" xml:lang="en-US">Financial Instrument [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancialInstrumentAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancialInstrumentAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xml:lang="en-US">Financial Instruments [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember" xml:lang="en-US">Loans Insured or Guaranteed by US Government Authorities [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember" xml:lang="en-US">SBA/USDA</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember" xml:lang="en-US">Government guaranteed loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember" xlink:to="lab_4K2JJIIH0420_us-gaap_LoansInsuredOrGuaranteedByUsGovernmentAuthoritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetsAtFairValueLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetsAtFairValueLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetsAtFairValueLineItems" xml:lang="en-US">Servicing Assets at Fair Value [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetsAtFairValueLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetsAtFairValueLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtFairValueAmountRollForward" xlink:label="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtFairValueAmountRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueAmountRollForward" xml:lang="en-US">Servicing Asset at Fair Value, Amount [Roll Forward]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueAmountRollForward" xml:lang="en-US">ASC 860 Servicing Asset Rollforward</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtFairValueAmountRollForward" xlink:to="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueAmountRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtFairValueAmount" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtFairValueAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAmount" xml:lang="en-US">Residential mortgage servicing rights</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAmount" xml:lang="en-US">Fair value of retained servicing assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAmount" xml:lang="en-US">Estimated fair value of residential mortgage servicing rights</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAmount" xml:lang="en-US">Servicing rights for SBA/USDA loans, beginning of period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAmount" xml:lang="en-US">Servicing rights for SBA/USDA loans, end of period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtFairValueAmount" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAmount"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetAdditionsAbstract" xlink:label="loc_2I0HHGGF8208_ucbi_ServicingAssetAdditionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAdditionsAbstract" xml:lang="en-US">Servicing Asset Additions [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAdditionsAbstract" xml:lang="en-US">Additions:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ServicingAssetAdditionsAbstract" xlink:to="lab_4K2JJIIH0420_ucbi_ServicingAssetAdditionsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtFairValueAdditions" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtFairValueAdditions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAdditions" xml:lang="en-US">Servicing Asset at Fair Value, Additions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAdditions" xml:lang="en-US">Initial election to carry at fair value on January 1, 2017</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAdditions" xml:lang="en-US">Acquired servicing rights</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtFairValueAdditions" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueAdditions"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetAtFairValueOriginatedServicingRightsCapitalizedUponSaleOfLoans" xlink:label="loc_2I0HHGGF8208_ucbi_ServicingAssetAtFairValueOriginatedServicingRightsCapitalizedUponSaleOfLoans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueOriginatedServicingRightsCapitalizedUponSaleOfLoans" xml:lang="en-US">Servicing Asset At Fair Value Originated Servicing Rights Capitalized Upon Sale Of Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueOriginatedServicingRightsCapitalizedUponSaleOfLoans" xml:lang="en-US">Originated servicing rights capitalized upon sale of loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueOriginatedServicingRightsCapitalizedUponSaleOfLoans" xml:lang="en-US">Represents servicing asset at fair value originated servicing rights capitalized upon sale of loans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ServicingAssetAtFairValueOriginatedServicingRightsCapitalizedUponSaleOfLoans" xlink:to="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueOriginatedServicingRightsCapitalizedUponSaleOfLoans"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetSubtractionsAbstract" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetSubtractionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetSubtractionsAbstract" xml:lang="en-US">Servicing Asset Subtractions [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetSubtractionsAbstract" xml:lang="en-US">Subtractions:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetSubtractionsAbstract" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetSubtractionsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtFairValueDisposals" xlink:label="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtFairValueDisposals"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueDisposals" xml:lang="en-US">Servicing Asset at Fair Value, Disposals</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueDisposals" xml:lang="en-US">Due to change in valuation inputs or assumptions used in the valuation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueDisposals" xml:lang="en-US">Disposals</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueDisposals" xml:lang="en-US">Disposals</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtFairValueDisposals" xlink:to="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueDisposals"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptionsAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptionsAbstract" xml:lang="en-US">Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptionsAbstract" xml:lang="en-US">Changes in fair value:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptionsAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptionsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions" xlink:label="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions" xml:lang="en-US">Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions" xml:lang="en-US">Due to change in valuation inputs or assumptions used in the valuation model</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions" xlink:to="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions"/>


















<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed" xml:lang="en-US">Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed" xml:lang="en-US">Prepayment rate assumption</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed" xlink:label="loc_2I0HHGGF8208_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed" xml:lang="en-US">Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Prepayment Speed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed" xml:lang="en-US">10% adverse change</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed" xml:lang="en-US">10% adverse change</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed" xlink:to="lab_4K2JJIIH0420_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed" xml:lang="en-US">Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Prepayment Speed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed" xml:lang="en-US">20% adverse change</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed" xml:lang="en-US">20% adverse change</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate" xlink:label="loc_2I0HHGGF8208_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate" xml:lang="en-US">Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate" xml:lang="en-US">Discount rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate" xlink:to="lab_4K2JJIIH0420_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1" xlink:label="loc_2I0HHGGF8208_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1" xml:lang="en-US">Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Weighted Average Life</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1" xml:lang="en-US">Weighted-average life (years)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1" xlink:to="lab_4K2JJIIH0420_us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageGrossMargin" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageGrossMargin"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageGrossMargin" xml:lang="en-US">Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Weighted Average Gross Margin</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageGrossMargin" xml:lang="en-US">Weighted-average gross margin</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageGrossMargin" xml:lang="en-US">Represents servicing assets and servicing liabilities at fair value assumptions used to estimate fair value weighted average gross margin.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageGrossMargin" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageGrossMargin"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetsAtAmortizedValueTable" xlink:label="loc_2I0HHGGF8208_us-gaap_ServicingAssetsAtAmortizedValueTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetsAtAmortizedValueTable" xml:lang="en-US">Servicing Asset at Amortized Cost [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ServicingAssetsAtAmortizedValueTable" xlink:to="lab_4K2JJIIH0420_us-gaap_ServicingAssetsAtAmortizedValueTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems" xml:lang="en-US">Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetAtFairValueAdditionsAbstract" xlink:label="loc_2I0HHGGF8208_ucbi_ServicingAssetAtFairValueAdditionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueAdditionsAbstract" xml:lang="en-US">Servicing Asset At Fair Value Additions [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueAdditionsAbstract" xml:lang="en-US">Additions:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ServicingAssetAtFairValueAdditionsAbstract" xlink:to="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueAdditionsAbstract"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetAtFairValueOriginationOfServicingAssetCapitalizedUponSale" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetAtFairValueOriginationOfServicingAssetCapitalizedUponSale"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtFairValueOriginationOfServicingAssetCapitalizedUponSale" xml:lang="en-US">Servicing Asset At Fair Value Origination Of Servicing Asset Capitalized Upon Sale</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtFairValueOriginationOfServicingAssetCapitalizedUponSale" xml:lang="en-US">Originated servicing rights capitalized upon sale of loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtFairValueOriginationOfServicingAssetCapitalizedUponSale" xml:lang="en-US">Amount of additions from origination of servicing assets capitalized upon sale.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetAtFairValueOriginationOfServicingAssetCapitalizedUponSale" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtFairValueOriginationOfServicingAssetCapitalizedUponSale"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetAtFairValueSubtractionsAbstract" xlink:label="loc_2I0HHGGF8208_ucbi_ServicingAssetAtFairValueSubtractionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueSubtractionsAbstract" xml:lang="en-US">Servicing Asset At Fair Value Subtractions [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueSubtractionsAbstract" xml:lang="en-US">Subtractions:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ServicingAssetAtFairValueSubtractionsAbstract" xlink:to="lab_4K2JJIIH0420_ucbi_ServicingAssetAtFairValueSubtractionsAbstract"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ChangesInFairValueAbstract" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ChangesInFairValueAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ChangesInFairValueAbstract" xml:lang="en-US">Changes In Fair Value [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ChangesInFairValueAbstract" xml:lang="en-US">Changes in fair value:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ChangesInFairValueAbstract" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ChangesInFairValueAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions" xlink:label="loc_2I0HHGGF8208_us-gaap_AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions" xml:lang="en-US">Asset at Fair Value, Changes in Fair Value Resulting from Changes in Assumptions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions" xml:lang="en-US">Due to change in valuation inputs or assumptions used in the valuation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions" xlink:to="lab_4K2JJIIH0420_us-gaap_AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtAmortizedValueBalanceRollForward" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtAmortizedValueBalanceRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtAmortizedValueBalanceRollForward" xml:lang="en-US">Servicing Asset at Amortized Cost, Balance [Roll Forward]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtAmortizedValueBalanceRollForward" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtAmortizedValueBalanceRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtAmortizedValue" xlink:label="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtAmortizedValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValue" xml:lang="en-US">Servicing Asset at Amortized Cost</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValue" xml:lang="en-US">Servicing asset, Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValue" xml:lang="en-US">Residential mortgage servicing rights, beginning of period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValue" xml:lang="en-US">Residential mortgage servicing rights, beginning of period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtAmortizedValue" xlink:to="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValue"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetAtAmortizedCostAdditionsAbstract" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetAtAmortizedCostAdditionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtAmortizedCostAdditionsAbstract" xml:lang="en-US">Servicing Asset At Amortized Cost, Additions [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtAmortizedCostAdditionsAbstract" xml:lang="en-US">Additions:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetAtAmortizedCostAdditionsAbstract" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtAmortizedCostAdditionsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtAmortizedValueAdditions" xlink:label="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtAmortizedValueAdditions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValueAdditions" xml:lang="en-US">Servicing Asset at Amortized Cost, Additions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValueAdditions" xml:lang="en-US">Acquired servicing rights</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetAtAmortizedCostOriginationOfServicingAssetCapitalizedUponSale" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetAtAmortizedCostOriginationOfServicingAssetCapitalizedUponSale"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtAmortizedCostOriginationOfServicingAssetCapitalizedUponSale" xml:lang="en-US">Servicing Asset At Amortized Cost, Origination Of Servicing Asset Capitalized Upon Sale</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtAmortizedCostOriginationOfServicingAssetCapitalizedUponSale" xml:lang="en-US">Originated servicing rights capitalized upon sale of loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtAmortizedCostOriginationOfServicingAssetCapitalizedUponSale" xml:lang="en-US">Amount of additions from origination of servicing assets capitalized upon sale.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ServicingAssetAtAmortizedCostOriginationOfServicingAssetCapitalizedUponSale" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ServicingAssetAtAmortizedCostOriginationOfServicingAssetCapitalizedUponSale"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingAssetAtAmortizedCostSubtractionsAbstract" xlink:label="loc_2I0HHGGF8208_ucbi_ServicingAssetAtAmortizedCostSubtractionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAtAmortizedCostSubtractionsAbstract" xml:lang="en-US">Servicing Asset At Amortized Cost, Subtractions [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ServicingAssetAtAmortizedCostSubtractionsAbstract" xml:lang="en-US">Subtractions:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ServicingAssetAtAmortizedCostSubtractionsAbstract" xlink:to="lab_4K2JJIIH0420_ucbi_ServicingAssetAtAmortizedCostSubtractionsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtAmortizedValueAmortization1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtAmortizedValueAmortization1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtAmortizedValueAmortization1" xml:lang="en-US">Servicing Asset at Amortized Cost, Amortization</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtAmortizedValueAmortization1" xml:lang="en-US">Amortization</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ServicingAssetAtAmortizedValueAmortization1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ServicingAssetAtAmortizedValueAmortization1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ServicingAssetAtAmortizedValueValuationAllowance" xlink:label="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtAmortizedValueValuationAllowance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValueValuationAllowance" xml:lang="en-US">Servicing Asset at Amortized Cost, Valuation Allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValueValuationAllowance" xml:lang="en-US">Impairment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ServicingAssetAtAmortizedValueValuationAllowance" xlink:to="lab_4K2JJIIH0420_us-gaap_ServicingAssetAtAmortizedValueValuationAllowance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsTable" xml:lang="en-US">Schedule of Valuation Allowance for Impairment of Recognized Servicing Assets [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsLineItems" xml:lang="en-US">Valuation Allowance for Impairment of Recognized Servicing Assets [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsRollForward" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsRollForward" xml:lang="en-US">Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsRollForward" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance" xlink:label="loc_2I0HHGGF8208_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance" xml:lang="en-US">Valuation Allowance for Impairment of Recognized Servicing Assets, Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance" xml:lang="en-US">Valuation allowance, end of period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance" xml:lang="en-US">Valuation allowance, beginning of period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance" xml:lang="en-US">Valuation allowance, end of period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance" xlink:to="lab_4K2JJIIH0420_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease" xml:lang="en-US">Valuation Allowance for Impairment of Recognized Servicing Assets, Period Increase (Decrease)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease" xml:lang="en-US">Additions charged to operations, net</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ScheduleOfServicingAssetTable" xlink:label="loc_2I0HHGGF8208_ucbi_ScheduleOfServicingAssetTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfServicingAssetTable" xml:lang="en-US">Schedule Of Servicing Asset [Table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ScheduleOfServicingAssetTable" xml:lang="en-US">Represents the tabular information of servicing asset.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ScheduleOfServicingAssetTable" xlink:to="lab_4K2JJIIH0420_ucbi_ScheduleOfServicingAssetTable"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ScheduleOfServicingAssetLineItems" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ScheduleOfServicingAssetLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ScheduleOfServicingAssetLineItems" xml:lang="en-US">Schedule Of Servicing Asset [Line Items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ScheduleOfServicingAssetLineItems" xml:lang="en-US">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ScheduleOfServicingAssetLineItems" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ScheduleOfServicingAssetLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding" xlink:label="loc_2I0HHGGF8208_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding" xml:lang="en-US">Continuing Involvement with Derecognized Transferred Financial Assets, Amount Outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding" xml:lang="en-US">Servicing of asset for others, Amount not included in balance sheet</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding" xlink:to="lab_4K2JJIIH0420_us-gaap_DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets" xml:lang="en-US">Contractually Specified Servicing Fees, Late Fees, and Ancillary Fees Earned in Exchange for Servicing Financial Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets" xml:lang="en-US">Contractually specified servicing fees earned by United on servicing rights</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearOne" xlink:label="loc_2I0HHGGF8208_us-gaap_TimeDepositMaturitiesYearOne"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesYearOne" xml:lang="en-US">Time Deposit Maturities, Next Twelve Months</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesYearOne" xml:lang="en-US">2018</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TimeDepositMaturitiesYearOne" xlink:to="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesYearOne"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearTwo" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TimeDepositMaturitiesYearTwo"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositMaturitiesYearTwo" xml:lang="en-US">Time Deposit Maturities, Year Two</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositMaturitiesYearTwo" xml:lang="en-US">2019</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TimeDepositMaturitiesYearTwo" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositMaturitiesYearTwo"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearThree" xlink:label="loc_2I0HHGGF8208_us-gaap_TimeDepositMaturitiesYearThree"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesYearThree" xml:lang="en-US">Time Deposit Maturities, Year Three</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesYearThree" xml:lang="en-US">2020</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TimeDepositMaturitiesYearThree" xlink:to="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesYearThree"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearFour" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TimeDepositMaturitiesYearFour"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositMaturitiesYearFour" xml:lang="en-US">Time Deposit Maturities, Year Four</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositMaturitiesYearFour" xml:lang="en-US">2021</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TimeDepositMaturitiesYearFour" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositMaturitiesYearFour"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearFive" xlink:label="loc_2I0HHGGF8208_us-gaap_TimeDepositMaturitiesYearFive"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesYearFive" xml:lang="en-US">Time Deposit Maturities, Year Five</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesYearFive" xml:lang="en-US">2022</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TimeDepositMaturitiesYearFive" xlink:to="lab_4K2JJIIH0420_us-gaap_TimeDepositMaturitiesYearFive"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesAfterYearFive" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TimeDepositMaturitiesAfterYearFive"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositMaturitiesAfterYearFive" xml:lang="en-US">Time Deposit Maturities, after Year Five</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositMaturitiesAfterYearFive" xml:lang="en-US">thereafter</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TimeDepositMaturitiesAfterYearFive" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositMaturitiesAfterYearFive"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ContractualMaturitiesOfTimeDepositsIncludingBrokeredTimeDeposits" xlink:label="loc_2I0HHGGF8208_ucbi_ContractualMaturitiesOfTimeDepositsIncludingBrokeredTimeDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ContractualMaturitiesOfTimeDepositsIncludingBrokeredTimeDeposits" xml:lang="en-US">Contractual Maturities Of Time Deposits Including Brokered Time Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ContractualMaturitiesOfTimeDepositsIncludingBrokeredTimeDeposits" xml:lang="en-US">Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ContractualMaturitiesOfTimeDepositsIncludingBrokeredTimeDeposits" xml:lang="en-US">Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ContractualMaturitiesOfTimeDepositsIncludingBrokeredTimeDeposits" xml:lang="en-US">Represents contractual maturities of time deposits including brokered time deposits.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ContractualMaturitiesOfTimeDepositsIncludingBrokeredTimeDeposits" xlink:to="lab_4K2JJIIH0420_ucbi_ContractualMaturitiesOfTimeDepositsIncludingBrokeredTimeDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositsAtCarryingValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TimeDepositsAtCarryingValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositsAtCarryingValue" xml:lang="en-US">Time Deposits, at Carrying Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositsAtCarryingValue" xml:lang="en-US">Time deposits (excluding brokered time deposits)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TimeDepositsAtCarryingValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TimeDepositsAtCarryingValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertificatesOfDepositAtCarryingValue" xlink:label="loc_2I0HHGGF8208_us-gaap_CertificatesOfDepositAtCarryingValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CertificatesOfDepositAtCarryingValue" xml:lang="en-US">Certificates of Deposit, at Carrying Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CertificatesOfDepositAtCarryingValue" xml:lang="en-US">Certificates of deposit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CertificatesOfDepositAtCarryingValue" xlink:to="lab_4K2JJIIH0420_us-gaap_CertificatesOfDepositAtCarryingValue"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DailyAverageBalanceOfBrokeredDeposits" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DailyAverageBalanceOfBrokeredDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DailyAverageBalanceOfBrokeredDeposits" xml:lang="en-US">Daily Average Balance of Brokered Deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DailyAverageBalanceOfBrokeredDeposits" xml:lang="en-US">Daily average balance of brokered deposits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DailyAverageBalanceOfBrokeredDeposits" xml:lang="en-US">This element represents average balance of brokered deposits.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DailyAverageBalanceOfBrokeredDeposits" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DailyAverageBalanceOfBrokeredDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DescriptionOfTypesOfFairValueHedgingInstrumentsUsed" xlink:label="loc_2I0HHGGF8208_us-gaap_DescriptionOfTypesOfFairValueHedgingInstrumentsUsed"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DescriptionOfTypesOfFairValueHedgingInstrumentsUsed" xml:lang="en-US">Description of Types of Fair Value Hedging Instruments Used</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DescriptionOfTypesOfFairValueHedgingInstrumentsUsed" xml:lang="en-US">Description of fair value hedging instrument</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DescriptionOfTypesOfFairValueHedgingInstrumentsUsed" xlink:to="lab_4K2JJIIH0420_us-gaap_DescriptionOfTypesOfFairValueHedgingInstrumentsUsed"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTable" xml:lang="en-US">Schedule of Federal Home Loan Bank Advances, by Branch of FHLB Bank [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankLineItems" xml:lang="en-US">Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Twelve Months</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate" xml:lang="en-US">2018</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate" xlink:label="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Two</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate" xml:lang="en-US">2019</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate" xlink:to="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Three</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate" xml:lang="en-US">2020</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate"/>






<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesPremium" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesPremium"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesPremium" xml:lang="en-US">Federal Home Loan Bank, Advances, Premium</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesPremium" xml:lang="en-US">Premium</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesPremium" xml:lang="en-US">Premium</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesPremium" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesPremium"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesInterestRate" xlink:label="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankAdvancesInterestRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesInterestRate" xml:lang="en-US">Federal Home Loan Bank, Advances, Interest Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesInterestRate" xml:lang="en-US">Current Rate 2018</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankAdvancesInterestRate" xlink:to="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesInterestRate"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FederalHomeLoanBankAdvancesInterestRateYearOne" xlink:label="loc_I9G01G3G9932937HF776_ucbi_FederalHomeLoanBankAdvancesInterestRateYearOne"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FederalHomeLoanBankAdvancesInterestRateYearOne" xml:lang="en-US">Federal Home Loan Bank Advances Interest Rate Year One</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FederalHomeLoanBankAdvancesInterestRateYearOne" xml:lang="en-US">Current Rate 2019</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FederalHomeLoanBankAdvancesInterestRateYearOne" xml:lang="en-US">Interest rate of advances made and reported by Federal Home Loan Bank (FHLBank).</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_FederalHomeLoanBankAdvancesInterestRateYearOne" xlink:to="lab_K1I23I5I1154159JH998_ucbi_FederalHomeLoanBankAdvancesInterestRateYearOne"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FederalHomeLoanBankAdvancesInterestRateYearTwo" xlink:label="loc_2I0HHGGF8208_ucbi_FederalHomeLoanBankAdvancesInterestRateYearTwo"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FederalHomeLoanBankAdvancesInterestRateYearTwo" xml:lang="en-US">Federal Home Loan Bank Advances Interest Rate Year Two</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FederalHomeLoanBankAdvancesInterestRateYearTwo" xml:lang="en-US">Current Rate 2020</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FederalHomeLoanBankAdvancesInterestRateYearTwo" xml:lang="en-US">Interest rate of advances made and reported by Federal Home Loan Bank (FHLBank).</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FederalHomeLoanBankAdvancesInterestRateYearTwo" xlink:to="lab_4K2JJIIH0420_ucbi_FederalHomeLoanBankAdvancesInterestRateYearTwo"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRate" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRate" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Fixed Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRate" xml:lang="en-US">FHLB advances</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRate" xml:lang="en-US">Fixed rate advances</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRate" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd" xlink:label="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd" xml:lang="en-US">Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd" xml:lang="en-US">Weighted average interest rate advances</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd" xlink:to="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentTable" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentTable"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TwoThousandSeventeenSeniorDebenturesMember" xlink:label="loc_2I0HHGGF8208_ucbi_TwoThousandSeventeenSeniorDebenturesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_TwoThousandSeventeenSeniorDebenturesMember" xml:lang="en-US">2017 senior debentures [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_TwoThousandSeventeenSeniorDebenturesMember" xml:lang="en-US">2017 senior debentures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_TwoThousandSeventeenSeniorDebenturesMember" xml:lang="en-US">2017 senior debentures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_TwoThousandSeventeenSeniorDebenturesMember" xml:lang="en-US">Represents information of 2017 senior debentures.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_TwoThousandSeventeenSeniorDebenturesMember" xlink:to="lab_4K2JJIIH0420_ucbi_TwoThousandSeventeenSeniorDebenturesMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TwoThousandEighteenSeniorDebenturesMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_TwoThousandEighteenSeniorDebenturesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TwoThousandEighteenSeniorDebenturesMember" xml:lang="en-US">2018 senior debentures [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TwoThousandEighteenSeniorDebenturesMember" xml:lang="en-US">2018 senior debentures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TwoThousandEighteenSeniorDebenturesMember" xml:lang="en-US">Represents information of 2018 senior debentures.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_TwoThousandEighteenSeniorDebenturesMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_TwoThousandEighteenSeniorDebenturesMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TwoThousandTwentyTwoSeniorDebenturesMember" xlink:label="loc_2I0HHGGF8208_ucbi_TwoThousandTwentyTwoSeniorDebenturesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_TwoThousandTwentyTwoSeniorDebenturesMember" xml:lang="en-US">Two Thousand Twenty Two Senior Debentures [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_TwoThousandTwentyTwoSeniorDebenturesMember" xml:lang="en-US">2022 senior debentures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_TwoThousandTwentyTwoSeniorDebenturesMember" xml:lang="en-US">Represents information of 2022 senior debentures.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_TwoThousandTwentyTwoSeniorDebenturesMember" xlink:to="lab_4K2JJIIH0420_ucbi_TwoThousandTwentyTwoSeniorDebenturesMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TwoThousandTwentySevenSeniorDebenturesMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_TwoThousandTwentySevenSeniorDebenturesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TwoThousandTwentySevenSeniorDebenturesMember" xml:lang="en-US">Two Thousand Twenty Seven Senior Debentures [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TwoThousandTwentySevenSeniorDebenturesMember" xml:lang="en-US">2027 senior debentures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TwoThousandTwentySevenSeniorDebenturesMember" xml:lang="en-US">Represents information of 2027 senior debentures.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_TwoThousandTwentySevenSeniorDebenturesMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_TwoThousandTwentySevenSeniorDebenturesMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_SeniorDebenturesMember" xlink:label="loc_2I0HHGGF8208_ucbi_SeniorDebenturesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_SeniorDebenturesMember" xml:lang="en-US">Senior Debentures [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_SeniorDebenturesMember" xml:lang="en-US">Total senior debentures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_SeniorDebenturesMember" xml:lang="en-US">Represents information of senior debentures.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_SeniorDebenturesMember" xlink:to="lab_4K2JJIIH0420_ucbi_SeniorDebenturesMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_SubordinatedDebenturesMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_SubordinatedDebenturesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_SubordinatedDebenturesMember" xml:lang="en-US">Subordinated Debentures [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_SubordinatedDebenturesMember" xml:lang="en-US">Total subordinated debentures</label>

<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_SubordinatedDebenturesMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_SubordinatedDebenturesMember"/><label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_SubordinatedDebenturesMember" xml:lang="en-US">Represents information about total subordinated debentures.</label>

<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_SouthernBancorpCapitalTrustOneMember" xlink:label="loc_2I0HHGGF8208_ucbi_SouthernBancorpCapitalTrustOneMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_SouthernBancorpCapitalTrustOneMember" xml:lang="en-US">Southern Bancorp Capital Trust One [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_SouthernBancorpCapitalTrustOneMember" xml:lang="en-US">Southern Bancorp Capital Trust I</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_SouthernBancorpCapitalTrustOneMember" xml:lang="en-US">Represents information of Southern bancorp capital trust I.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_SouthernBancorpCapitalTrustOneMember" xlink:to="lab_4K2JJIIH0420_ucbi_SouthernBancorpCapitalTrustOneMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_UnitedCommunityStatutoryTrustThreeMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_UnitedCommunityStatutoryTrustThreeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_UnitedCommunityStatutoryTrustThreeMember" xml:lang="en-US">United Community Statutory Trust Three [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_UnitedCommunityStatutoryTrustThreeMember" xml:lang="en-US">United Community Statutory Trust III</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_UnitedCommunityStatutoryTrustThreeMember" xml:lang="en-US">Represents information of United community statutory trust III.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_UnitedCommunityStatutoryTrustThreeMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_UnitedCommunityStatutoryTrustThreeMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TidelandsStatutoryTrustOneMember" xlink:label="loc_2I0HHGGF8208_ucbi_TidelandsStatutoryTrustOneMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_TidelandsStatutoryTrustOneMember" xml:lang="en-US">Tidelands Statutory Trust One [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_TidelandsStatutoryTrustOneMember" xml:lang="en-US">Tidelands Statutory Trust I</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_TidelandsStatutoryTrustOneMember" xml:lang="en-US">Tidelands statutory trust one.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_TidelandsStatutoryTrustOneMember" xlink:to="lab_4K2JJIIH0420_ucbi_TidelandsStatutoryTrustOneMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TidelandsStatutoryTrustTwoMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_TidelandsStatutoryTrustTwoMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TidelandsStatutoryTrustTwoMember" xml:lang="en-US">Tidelands Statutory Trust Two [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TidelandsStatutoryTrustTwoMember" xml:lang="en-US">Tidelands Statutory Trust II</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TidelandsStatutoryTrustTwoMember" xml:lang="en-US">Tidelands statutory trust two.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_TidelandsStatutoryTrustTwoMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_TidelandsStatutoryTrustTwoMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FourOaksStatutoryTrustIMember" xlink:label="loc_2I0HHGGF8208_ucbi_FourOaksStatutoryTrustIMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FourOaksStatutoryTrustIMember" xml:lang="en-US">Four Oaks Statutory Trust I [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FourOaksStatutoryTrustIMember" xml:lang="en-US">Four Oaks Statutory Trust I</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FourOaksStatutoryTrustIMember" xml:lang="en-US">Represents information about Four Oaks Statutory Trust I.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FourOaksStatutoryTrustIMember" xlink:to="lab_4K2JJIIH0420_ucbi_FourOaksStatutoryTrustIMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentLineItems" xml:lang="en-US">Debt Instrument [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract" xml:lang="en-US">Long-term Debt, by Current and Noncurrent [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract" xml:lang="en-US">Long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DebtInstrumentIssueYear" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DebtInstrumentIssueYear"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DebtInstrumentIssueYear" xml:lang="en-US">Debt Instrument Issue Year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DebtInstrumentIssueYear" xml:lang="en-US">Issue Date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DebtInstrumentIssueYear" xml:lang="en-US">This element represents debt instrument issue year.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DebtInstrumentIssueYear" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DebtInstrumentIssueYear"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DebtInstrumentsMaturityYear" xlink:label="loc_2I0HHGGF8208_ucbi_DebtInstrumentsMaturityYear"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DebtInstrumentsMaturityYear" xml:lang="en-US">Debt Instruments Maturity Year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DebtInstrumentsMaturityYear" xml:lang="en-US">Debentures matured date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DebtInstrumentsMaturityYear" xml:lang="en-US">Stated Maturity Date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DebtInstrumentsMaturityYear" xml:lang="en-US">This element represents debt instruments maturity year.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DebtInstrumentsMaturityYear" xlink:to="lab_4K2JJIIH0420_ucbi_DebtInstrumentsMaturityYear"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DebtInstrumentEarliestCallYear" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DebtInstrumentEarliestCallYear"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DebtInstrumentEarliestCallYear" xml:lang="en-US">Debt Instrument Earliest Call Year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DebtInstrumentEarliestCallYear" xml:lang="en-US">Earliest Call Date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DebtInstrumentEarliestCallYear" xml:lang="en-US">This element represents debt instrument earliest call year.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DebtInstrumentEarliestCallYear" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DebtInstrumentEarliestCallYear"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_2I0HHGGF8208_us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US">Increased interest rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US">Interest Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveTerseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US">Interest rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="lab_4K2JJIIH0420_us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentDescriptionOfVariableRateBasis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis" xml:lang="en-US">Debt Instrument, Description of Variable Rate Basis</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis" xml:lang="en-US">Description of variable rate basis</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis" xml:lang="en-US">Interest Rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MarginAddedToPrimeRateToDetermineEffectiveInterestRate" xlink:label="loc_2I0HHGGF8208_ucbi_MarginAddedToPrimeRateToDetermineEffectiveInterestRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_MarginAddedToPrimeRateToDetermineEffectiveInterestRate" xml:lang="en-US">Margin Added to Prime Rate to Determine Effective Interest Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_MarginAddedToPrimeRateToDetermineEffectiveInterestRate" xml:lang="en-US">Prime + Interest rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_MarginAddedToPrimeRateToDetermineEffectiveInterestRate" xml:lang="en-US">Prime + Interest rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_MarginAddedToPrimeRateToDetermineEffectiveInterestRate" xml:lang="en-US">This element represents margin added to prime rate to determine effective interest rate.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_MarginAddedToPrimeRateToDetermineEffectiveInterestRate" xlink:to="lab_4K2JJIIH0420_ucbi_MarginAddedToPrimeRateToDetermineEffectiveInterestRate"/>




<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed" xlink:label="loc_2I0HHGGF8208_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed" xml:lang="en-US">Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed" xml:lang="en-US">Percentage of principal amount redeemed</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed" xlink:to="lab_4K2JJIIH0420_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentMaturityDate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentMaturityDate" xml:lang="en-US">Debt Instrument, Maturity Date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentMaturityDate" xml:lang="en-US">Subordinated notes maturity date</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DebtInstrumentAnnualPrincipalPayment" xml:lang="en-US">Debt Instrument, Annual Principal Payment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DebtInstrumentAnnualPrincipalPayment" xml:lang="en-US">Principal amount of debt</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable" xml:lang="en-US">Reclassification out of Accumulated Other Comprehensive Income [Table]</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis" xml:lang="en-US">Reclassification out of Accumulated Other Comprehensive Income [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain" xml:lang="en-US">Reclassification out of Accumulated Other Comprehensive Income [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_2I0HHGGF8208_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US">Reclassification out of Accumulated Other Comprehensive Income [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US">Reclassifications Out of Accumulated Other Comprehensive Income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember" xlink:to="lab_4K2JJIIH0420_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xml:lang="en-US">Accumulated Net Unrealized Investment Gain (Loss) [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xml:lang="en-US">Realized gains on available-for-sale securities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AccumulatedAmortizationOfGainsIncludedInNetIncomeOnAvailableForSaleSecuritiesTransferredToHeldToMaturityMember" xlink:label="loc_2I0HHGGF8208_ucbi_AccumulatedAmortizationOfGainsIncludedInNetIncomeOnAvailableForSaleSecuritiesTransferredToHeldToMaturityMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_AccumulatedAmortizationOfGainsIncludedInNetIncomeOnAvailableForSaleSecuritiesTransferredToHeldToMaturityMember" xml:lang="en-US">Accumulated Amortization Of Gains Included In Net Income On Available For Sale Securities Transferred To Held To Maturity [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_AccumulatedAmortizationOfGainsIncludedInNetIncomeOnAvailableForSaleSecuritiesTransferredToHeldToMaturityMember" xml:lang="en-US">Amortization of (losses) gains included in net income on available-for-sale securities transferred to held to maturity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_AccumulatedAmortizationOfGainsIncludedInNetIncomeOnAvailableForSaleSecuritiesTransferredToHeldToMaturityMember" xml:lang="en-US">Represents accumulated amortization of gains included in net income on available for sale securities transferred to held to maturity.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_AccumulatedAmortizationOfGainsIncludedInNetIncomeOnAvailableForSaleSecuritiesTransferredToHeldToMaturityMember" xlink:to="lab_4K2JJIIH0420_ucbi_AccumulatedAmortizationOfGainsIncludedInNetIncomeOnAvailableForSaleSecuritiesTransferredToHeldToMaturityMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xml:lang="en-US">Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xml:lang="en-US">Amounts included in net income on derivative financial instruments accounted for as cash flow hedges</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xml:lang="en-US">Gains included in net income on derivative financial instruments accounted for as cash flow hedges</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ReclassificationOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesMember" xlink:label="loc_2I0HHGGF8208_ucbi_ReclassificationOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ReclassificationOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesMember" xml:lang="en-US">Reclassification Of Disproportionate Tax Effect Related To Terminated Cash Flow Hedges [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ReclassificationOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesMember" xml:lang="en-US">Reclassification of disproportionate tax effect related to terminated cash flow hedges</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ReclassificationOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesMember" xml:lang="en-US">Represents information about Reclassification of disproportionate tax effect related to terminated cash flow hedges</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ReclassificationOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesMember" xlink:to="lab_4K2JJIIH0420_ucbi_ReclassificationOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xml:lang="en-US">Accumulated Defined Benefit Plans Adjustment [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xml:lang="en-US">Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_IncomeStatementLocationAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeStatementLocationAxis" xml:lang="en-US">Income Statement Location [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncomeStatementLocationAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_IncomeStatementLocationAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncomeStatementLocationDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeStatementLocationDomain" xml:lang="en-US">Income Statement Location [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncomeStatementLocationDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncomeStatementLocationDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_SalariesAndEmployeeBenefitsExpenseMember" xlink:label="loc_2I0HHGGF8208_ucbi_SalariesAndEmployeeBenefitsExpenseMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_SalariesAndEmployeeBenefitsExpenseMember" xml:lang="en-US">Salaries And Employee Benefits Expense [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_SalariesAndEmployeeBenefitsExpenseMember" xml:lang="en-US">Salaries and employee benefits expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_SalariesAndEmployeeBenefitsExpenseMember" xml:lang="en-US">Represents salaries and employee benefits expense.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_SalariesAndEmployeeBenefitsExpenseMember" xlink:to="lab_4K2JJIIH0420_ucbi_SalariesAndEmployeeBenefitsExpenseMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems" xml:lang="en-US">Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeOperating" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestIncomeOperating"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestIncomeOperating" xml:lang="en-US">Interest Income, Operating</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestIncomeOperating" xml:lang="en-US">Investment securities interest revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InterestIncomeOperating" xlink:to="lab_4K2JJIIH0420_us-gaap_InterestIncomeOperating"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AmortizationOfLossesOnDesignatedPositionsDepositsInBanksAndShortTermInvestmentsInterestRevenue" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AmortizationOfLossesOnDesignatedPositionsDepositsInBanksAndShortTermInvestmentsInterestRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AmortizationOfLossesOnDesignatedPositionsDepositsInBanksAndShortTermInvestmentsInterestRevenue" xml:lang="en-US">Amortization Of Losses On Designated Positions Deposits In Banks And Short Term Investments Interest Revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AmortizationOfLossesOnDesignatedPositionsDepositsInBanksAndShortTermInvestmentsInterestRevenue" xml:lang="en-US">Deposits in banks and short-term investments interest revenue</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AmortizationOfLossesOnDesignatedPositionsDepositsInBanksAndShortTermInvestmentsInterestRevenue" xml:lang="en-US">This element represents amortization of losses on de-designated positions for deposits in banks and short-term investments interest revenue.</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AmortizationOfLossesOnDesignatedPositionsDepositsInBanksAndShortTermInvestmentsInterestRevenue" xml:lang="en-US">Deposits in banks and short-term investments interest revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AmortizationOfLossesOnDesignatedPositionsDepositsInBanksAndShortTermInvestmentsInterestRevenue" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AmortizationOfLossesOnDesignatedPositionsDepositsInBanksAndShortTermInvestmentsInterestRevenue"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AmortizationOfLossesOnDesignatedPositionsMoneyMarketDepositInterestExpense" xlink:label="loc_2I0HHGGF8208_ucbi_AmortizationOfLossesOnDesignatedPositionsMoneyMarketDepositInterestExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_AmortizationOfLossesOnDesignatedPositionsMoneyMarketDepositInterestExpense" xml:lang="en-US">Amortization Of Losses On Designated Positions Money Market Deposit Interest Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_AmortizationOfLossesOnDesignatedPositionsMoneyMarketDepositInterestExpense" xml:lang="en-US">Money market deposit interest expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_AmortizationOfLossesOnDesignatedPositionsMoneyMarketDepositInterestExpense" xml:lang="en-US">This element represents amortization of losses on de-designated positions for money market deposit interest expense.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_AmortizationOfLossesOnDesignatedPositionsMoneyMarketDepositInterestExpense" xlink:to="lab_4K2JJIIH0420_ucbi_AmortizationOfLossesOnDesignatedPositionsMoneyMarketDepositInterestExpense"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AmortizationOfLossesOnDesignatedPositionsFederalHomeLoanBankAdvancesInterestExpense" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AmortizationOfLossesOnDesignatedPositionsFederalHomeLoanBankAdvancesInterestExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AmortizationOfLossesOnDesignatedPositionsFederalHomeLoanBankAdvancesInterestExpense" xml:lang="en-US">Amortization Of Losses On Designated Positions Federal Home Loan Bank Advances Interest Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AmortizationOfLossesOnDesignatedPositionsFederalHomeLoanBankAdvancesInterestExpense" xml:lang="en-US">Federal Home Loan Bank advances interest expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AmortizationOfLossesOnDesignatedPositionsFederalHomeLoanBankAdvancesInterestExpense" xml:lang="en-US">This element represents amortization of losses on de-designated positions for federal home loan bank advances interest expense.</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax" xml:lang="en-US">Prior service cost</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax" xml:lang="en-US">Amortization of prior service cost</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax" xlink:label="loc_2I0HHGGF8208_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax" xml:lang="en-US">Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), before Tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax" xml:lang="en-US">Actuarial losses</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US">Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US">Total before tax</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xml:lang="en-US">Weighted Average Number of Shares Outstanding Reconciliation [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xml:lang="en-US">Computation of basic and diluted loss per share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic" xml:lang="en-US">Participating Securities, Distributed and Undistributed Earnings (Loss), Basic</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic" xml:lang="en-US">Dividends and undistributed earnings allocated to unvested shares</label>
<label xlink:type="resource" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Dividends and undistributed earnings allocated to unvested shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:label="loc_2I0HHGGF8208_us-gaap_PreferredStockDividendsIncomeStatementImpact"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PreferredStockDividendsIncomeStatementImpact" xml:lang="en-US">Preferred Stock Dividends, Income Statement Impact</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PreferredStockDividendsIncomeStatementImpact" xml:lang="en-US">Preferred dividends</label>
<label xlink:type="resource" xlink:label="lab_4K2JJIIH0420_us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Preferred dividends</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:to="lab_4K2JJIIH0420_us-gaap_PreferredStockDividendsIncomeStatementImpact"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_EarningsPerShareBasicAndDilutedAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EarningsPerShareBasicAndDilutedAbstract" xml:lang="en-US">Earnings Per Share, Basic and Diluted [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EarningsPerShareBasicAndDilutedAbstract" xml:lang="en-US">Income per common share:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_EarningsPerShareBasicAndDilutedAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DilutiveSecuritiesAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_DilutiveSecuritiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DilutiveSecuritiesAbstract" xml:lang="en-US">Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DilutiveSecuritiesAbstract" xml:lang="en-US">Effect of dilutive securities:</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xml:lang="en-US">Incremental Common Shares Attributable to Share-based Payment Arrangements</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xml:lang="en-US">Stock options (in shares)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfStockByClassTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfStockByClassTable" xml:lang="en-US">Schedule of Stock by Class [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfStockByClassTable" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfStockByClassTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_RestrictedStockMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_RestrictedStockMember" xml:lang="en-US">Restricted Stock [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_RestrictedStockMember" xml:lang="en-US">Restricted Stock</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_TitleOfIndividualAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TitleOfIndividualAxis" xml:lang="en-US">Title of Individual [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TitleOfIndividualAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_TitleOfIndividualAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xml:lang="en-US">Relationship to Entity [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_EmployeesMember" xlink:label="loc_2I0HHGGF8208_ucbi_EmployeesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_EmployeesMember" xml:lang="en-US">Employees [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_EmployeesMember" xml:lang="en-US">Employees</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_EmployeesMember" xml:lang="en-US">Represents information of employees.</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ClassOfStockLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ClassOfStockLineItems" xml:lang="en-US">Class of Stock [Line Items]</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="loc_2I0HHGGF8208_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xml:lang="en-US">Class of Warrant or Right, Number of Securities Called by Warrants or Rights</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xml:lang="en-US">Warrants to purchase shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xml:lang="en-US">Number of common stock called by warrants (in shares)</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xml:lang="en-US">Class of Warrant or Right, Exercise Price of Warrants or Rights</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xml:lang="en-US">Exercise price of warrants (in dollars per share)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xml:lang="en-US">Exercise of price warrants</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Shares issuable upon exercise of grants</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Common shares issuable upon exercise of stock options granted</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Options, Outstanding Shares, Beginning Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Options, Outstanding Shares, Ending Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Weighted average exercise price of options exercised to issue common shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Weighted average exercise price of stock options granted to employees</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Weighted Average Exercise Price, Beginning balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Weighted-Average Exercise Price, Ending balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Vesting of restricted stock awards</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Shares Outstanding, Beginning Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Shares Outstanding, Ending Balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CurrentIncomeTaxExpenseBenefit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CurrentIncomeTaxExpenseBenefit" xml:lang="en-US">Current Income Tax Expense (Benefit)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CurrentIncomeTaxExpenseBenefit" xml:lang="en-US">Current</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CurrentIncomeTaxExpenseBenefit"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xml:lang="en-US">Valuation Allowance, Deferred Tax Asset, Change in Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xml:lang="en-US">Increase (decrease) in valuation allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xml:lang="en-US">(Decrease) increase in valuation allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xml:lang="en-US">Increase in valuation allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xml:lang="en-US">(Decrease) increase in valuation allowance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability" xlink:label="loc_2I0HHGGF8208_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability" xml:lang="en-US">Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability" xml:lang="en-US">Additional income tax expense due to re-measurement of net deferred tax asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability" xml:lang="en-US">Expense due to enactment of federal tax reform</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability" xlink:to="lab_4K2JJIIH0420_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" xml:lang="en-US">Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" xml:lang="en-US">Differences between the provision for income taxes and statutory federal income tax rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_2I0HHGGF8208_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xml:lang="en-US">Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xml:lang="en-US">Pretax income at statutory rates</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xml:lang="en-US">Pretax income (loss) at statutory rates</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:to="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AddDeductAbstract" xlink:label="loc_I9G01G3G9932937HF776_ucbi_AddDeductAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AddDeductAbstract" xml:lang="en-US">Add Deduct [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_AddDeductAbstract" xml:lang="en-US">Add (deduct):</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_AddDeductAbstract" xlink:to="lab_K1I23I5I1154159JH998_ucbi_AddDeductAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_2I0HHGGF8208_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xml:lang="en-US">Income Tax Reconciliation, State and Local Income Taxes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xml:lang="en-US">State taxes, net of federal benefit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:to="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseLifeInsurance" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncomeTaxReconciliationNondeductibleExpenseLifeInsurance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeTaxReconciliationNondeductibleExpenseLifeInsurance" xml:lang="en-US">Income Tax Reconciliation, Nondeductible Expense, Life Insurance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeTaxReconciliationNondeductibleExpenseLifeInsurance" xml:lang="en-US">Bank owned life insurance earnings</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncomeTaxReconciliationNondeductibleExpenseLifeInsurance" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncomeTaxReconciliationNondeductibleExpenseLifeInsurance"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_IncomeTaxReconciliationChangeInReservesForUncertainTaxPositions" xlink:label="loc_2I0HHGGF8208_ucbi_IncomeTaxReconciliationChangeInReservesForUncertainTaxPositions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_IncomeTaxReconciliationChangeInReservesForUncertainTaxPositions" xml:lang="en-US">Income Tax Reconciliation Change in Reserves for Uncertain Tax Positions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_IncomeTaxReconciliationChangeInReservesForUncertainTaxPositions" xml:lang="en-US">Adjustment to reserve for uncertain tax positions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_IncomeTaxReconciliationChangeInReservesForUncertainTaxPositions" xml:lang="en-US">This element represents amount of income tax reconciliation change in reserves for uncertain tax positions.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_IncomeTaxReconciliationChangeInReservesForUncertainTaxPositions" xlink:to="lab_4K2JJIIH0420_ucbi_IncomeTaxReconciliationChangeInReservesForUncertainTaxPositions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxExemptIncome" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncomeTaxReconciliationTaxExemptIncome"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeTaxReconciliationTaxExemptIncome" xml:lang="en-US">Income Tax Reconciliation, Tax Exempt Income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncomeTaxReconciliationTaxExemptIncome" xml:lang="en-US">Tax-exempt interest revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncomeTaxReconciliationTaxExemptIncome" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncomeTaxReconciliationTaxExemptIncome"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:label="loc_2I0HHGGF8208_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xml:lang="en-US">Equity compensation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:to="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_IncomeTaxReconciliationTaxTransactionCosts" xlink:label="loc_I9G01G3G9932937HF776_ucbi_IncomeTaxReconciliationTaxTransactionCosts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_IncomeTaxReconciliationTaxTransactionCosts" xml:lang="en-US">Income Tax Reconciliation Tax Transaction Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_IncomeTaxReconciliationTaxTransactionCosts" xml:lang="en-US">Transaction costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_IncomeTaxReconciliationTaxTransactionCosts" xml:lang="en-US">Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to transaction costs.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_IncomeTaxReconciliationTaxTransactionCosts" xlink:to="lab_K1I23I5I1154159JH998_ucbi_IncomeTaxReconciliationTaxTransactionCosts"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxCredits" xlink:label="loc_2I0HHGGF8208_us-gaap_IncomeTaxReconciliationTaxCredits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationTaxCredits" xml:lang="en-US">Income Tax Reconciliation, Tax Credits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationTaxCredits" xml:lang="en-US">Tax credit investments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncomeTaxReconciliationTaxCredits" xlink:to="lab_4K2JJIIH0420_us-gaap_IncomeTaxReconciliationTaxCredits"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ChangeInStateStatutoryTaxRate" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ChangeInStateStatutoryTaxRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ChangeInStateStatutoryTaxRate" xml:lang="en-US">Change In State Statutory Tax Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ChangeInStateStatutoryTaxRate" xml:lang="en-US">Change in state statutory tax rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ChangeInStateStatutoryTaxRate" xml:lang="en-US">Represents information about change in state statutory tax rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ChangeInStateStatutoryTaxRate" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ChangeInStateStatutoryTaxRate"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ReleaseOfDisproportionateTaxEffectsRelatedToDe-DesignatedCashFlowHedges" xlink:label="loc_2I0HHGGF8208_ucbi_ReleaseOfDisproportionateTaxEffectsRelatedToDe-DesignatedCashFlowHedges"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ReleaseOfDisproportionateTaxEffectsRelatedToDe-DesignatedCashFlowHedges" xml:lang="en-US">Release Of Disproportionate Tax Effects Related To De-Designated Cash Flow Hedges</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_2I0HHGGF8208_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards"/>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeferredTaxAssetsReserveForLossesOnForeclosedProperties" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DeferredTaxAssetsReserveForLossesOnForeclosedProperties"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_2I0HHGGF8208_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xml:lang="en-US">Nonqualified share based compensation</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xml:lang="en-US">Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xml:lang="en-US">Accrued expenses</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions" xml:lang="en-US">Unamortized pension actuarial losses and prior service cost</label>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DeferredTaxAssetsOther" xlink:to="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsOther"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxAssetsGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsGross" xml:lang="en-US">Deferred Tax Assets, Gross</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsGross" xml:lang="en-US">Total deferred tax assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxAssetsGross" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract" xml:lang="en-US">Components of Deferred Tax Liabilities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract" xml:lang="en-US">Deferred tax liabilities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xml:lang="en-US">Deferred Tax Liabilities, Intangible Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xml:lang="en-US">Acquired intangible assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeferredTaxLiabilitiesLoanCosts" xlink:label="loc_2I0HHGGF8208_ucbi_DeferredTaxLiabilitiesLoanCosts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilitiesLoanCosts" xml:lang="en-US">Deferred Tax Liabilities Loan Costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilitiesLoanCosts" xml:lang="en-US">Loan origination costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilitiesLoanCosts" xml:lang="en-US">Amount before allocation of valuation allowances of deferred tax asset attributable to deductible loan origination costs.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DeferredTaxLiabilitiesLoanCosts" xlink:to="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilitiesLoanCosts"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPrepaidExpenses" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxLiabilitiesPrepaidExpenses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilitiesPrepaidExpenses" xml:lang="en-US">Deferred Tax Liabilities, Prepaid Expenses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilitiesPrepaidExpenses" xml:lang="en-US">Prepaid expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxLiabilitiesPrepaidExpenses" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilitiesPrepaidExpenses"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeferredTaxLiabilitiesServicingAsset" xlink:label="loc_2I0HHGGF8208_ucbi_DeferredTaxLiabilitiesServicingAsset"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilitiesServicingAsset" xml:lang="en-US">Deferred Tax Liabilities Servicing Asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilitiesServicingAsset" xml:lang="en-US">Servicing asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilitiesServicingAsset" xml:lang="en-US">Amount of deferred tax liability attributable to taxable temporary differences from servicing asset.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DeferredTaxLiabilitiesServicingAsset" xlink:to="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilitiesServicingAsset"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesDerivatives" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxLiabilitiesDerivatives"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilitiesDerivatives" xml:lang="en-US">Deferred Tax Liabilities, Derivatives</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilitiesDerivatives" xml:lang="en-US">Derivatives</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxLiabilitiesDerivatives" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilitiesDerivatives"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeferredTaxLiabilityUncertainTaxPositions" xlink:label="loc_2I0HHGGF8208_ucbi_DeferredTaxLiabilityUncertainTaxPositions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilityUncertainTaxPositions" xml:lang="en-US">Deferred Tax Liability Uncertain Tax Positions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilityUncertainTaxPositions" xml:lang="en-US">Uncertain tax positions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilityUncertainTaxPositions" xml:lang="en-US">This element represents amount of deferred tax liability uncertain tax position.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DeferredTaxLiabilityUncertainTaxPositions" xlink:to="lab_4K2JJIIH0420_ucbi_DeferredTaxLiabilityUncertainTaxPositions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilities" xml:lang="en-US">Deferred Tax Liabilities, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilities" xml:lang="en-US">Total deferred tax liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxLiabilities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_2I0HHGGF8208_us-gaap_DeferredTaxAssetsValuationAllowance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsValuationAllowance" xml:lang="en-US">Deferred Tax Assets, Valuation Allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsValuationAllowance" xml:lang="en-US">Less valuation allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsValuationAllowance" xml:lang="en-US">Valuation allowance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DeferredTaxAssetsValuationAllowance" xlink:to="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsValuationAllowance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xml:lang="en-US">Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xml:lang="en-US">Reconciliation of the beginning and ending unrecognized tax benefit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_2I0HHGGF8208_us-gaap_UnrecognizedTaxBenefits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_UnrecognizedTaxBenefits" xml:lang="en-US">Unrecognized Tax Benefits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_UnrecognizedTaxBenefits" xml:lang="en-US">Balance at beginning of year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_UnrecognizedTaxBenefits" xml:lang="en-US">Balance at end of year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_UnrecognizedTaxBenefits" xlink:to="lab_4K2JJIIH0420_us-gaap_UnrecognizedTaxBenefits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions" xml:lang="en-US">Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions" xml:lang="en-US">Additions based on tax positions related to the current year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations" xlink:label="loc_2I0HHGGF8208_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations" xml:lang="en-US">Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations" xml:lang="en-US">Decreases resulting from a lapse in the applicable statute of limitations</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations" xlink:to="lab_4K2JJIIH0420_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_UnrecognizedTaxBenefitsDecreasesRemeasurementDueToEnactmentOfFederalTaxReform" xlink:label="loc_I9G01G3G9932937HF776_ucbi_UnrecognizedTaxBenefitsDecreasesRemeasurementDueToEnactmentOfFederalTaxReform"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_UnrecognizedTaxBenefitsDecreasesRemeasurementDueToEnactmentOfFederalTaxReform" xml:lang="en-US">Unrecognized Tax Benefits Decreases Remeasurement Due To Enactment Of Federal Tax Reform</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_UnrecognizedTaxBenefitsDecreasesRemeasurementDueToEnactmentOfFederalTaxReform" xml:lang="en-US">Remeasurement due to enactment of federal tax reform</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_UnrecognizedTaxBenefitsDecreasesRemeasurementDueToEnactmentOfFederalTaxReform" xml:lang="en-US">Represents information about Remeasurement due to enactment of federal tax reform</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_UnrecognizedTaxBenefitsDecreasesRemeasurementDueToEnactmentOfFederalTaxReform" xlink:to="lab_K1I23I5I1154159JH998_ucbi_UnrecognizedTaxBenefitsDecreasesRemeasurementDueToEnactmentOfFederalTaxReform"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxCreditCarryforwardTable" xlink:label="loc_2I0HHGGF8208_us-gaap_TaxCreditCarryforwardTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TaxCreditCarryforwardTable" xml:lang="en-US">Tax Credit Carryforward [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TaxCreditCarryforwardTable" xlink:to="lab_4K2JJIIH0420_us-gaap_TaxCreditCarryforwardTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxCreditCarryforwardAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TaxCreditCarryforwardAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TaxCreditCarryforwardAxis" xml:lang="en-US">Tax Credit Carryforward [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TaxCreditCarryforwardAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TaxCreditCarryforwardAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxCreditCarryforwardNameDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_TaxCreditCarryforwardNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TaxCreditCarryforwardNameDomain" xml:lang="en-US">Tax Credit Carryforward, Name [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TaxCreditCarryforwardNameDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_TaxCreditCarryforwardNameDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroOneEightMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroOneEightMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroOneEightMember" xml:lang="en-US">Net Operating Loss Carry Forwards Begin To Expire In Two Zero One Eight [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroOneEightMember" xml:lang="en-US">Begin to expire in 2018</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroOneEightMember" xml:lang="en-US">Represents information of net operating loss carryforwards begin to expire in 2018.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroOneEightMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroOneEightMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_StateTaxCreditBeginToExpiresIn2022Member" xlink:label="loc_2I0HHGGF8208_ucbi_StateTaxCreditBeginToExpiresIn2022Member"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_StateTaxCreditBeginToExpiresIn2022Member" xml:lang="en-US">State Tax Credit Begin To Expires In 2022 [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_StateTaxCreditBeginToExpiresIn2022Member" xml:lang="en-US">Begin to expire in 2022</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_StateTaxCreditBeginToExpiresIn2022Member" xml:lang="en-US">Represents information of net operating loss carry forwards begin to expire in 2022.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_StateTaxCreditBeginToExpiresIn2022Member" xlink:to="lab_4K2JJIIH0420_ucbi_StateTaxCreditBeginToExpiresIn2022Member"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeZeroMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeZeroMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeZeroMember" xml:lang="en-US">Net Operating Loss Carry Forwards Begin To Expire In Two Zero Three Zero [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeZeroMember" xml:lang="en-US">Begin to expire in 2030</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeZeroMember" xml:lang="en-US">Represents information of net operating loss carryforwards begin to expire in 2030.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeZeroMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeZeroMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeOneMember" xlink:label="loc_2I0HHGGF8208_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeOneMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeOneMember" xml:lang="en-US">Net Operating Loss Carry Forwards Begin To Expire In Two Zero Three One [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeOneMember" xml:lang="en-US">Begin to expire in 2031</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeOneMember" xml:lang="en-US">Represents information of net operating loss carryforwards begin to expire in 2031.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeOneMember" xlink:to="lab_4K2JJIIH0420_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroThreeOneMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoSevenMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoSevenMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoSevenMember" xml:lang="en-US">Net Operating Loss Carry Forwards Begin To Expire In Two Zero Two Seven [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoSevenMember" xml:lang="en-US">Begin to expire in 2027</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoSevenMember" xml:lang="en-US">Represents information of net operating loss carryforwards begin to expire in 2027.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoSevenMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoSevenMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoEightMember" xlink:label="loc_2I0HHGGF8208_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoEightMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoEightMember" xml:lang="en-US">Net Operating Loss Carry Forwards Begin to Expire in Two Zero Two Eight [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoEightMember" xml:lang="en-US">Begin to expire in 2028</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoEightMember" xml:lang="en-US">Represents information of net operating loss carry forwards begin to expire in 2028.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoEightMember" xlink:to="lab_4K2JJIIH0420_ucbi_NetOperatingLossCarryForwardsBeginToExpireInTwoZeroTwoEightMember"/>

























<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxCreditCarryforwardLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_TaxCreditCarryforwardLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TaxCreditCarryforwardLineItems" xml:lang="en-US">Tax Credit Carryforward [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TaxCreditCarryforwardLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_TaxCreditCarryforwardLineItems"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_2I0HHGGF8208_us-gaap_DeferredTaxAssetsNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsNet" xml:lang="en-US">Deferred Tax Assets, Net of Valuation Allowance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsNet" xml:lang="en-US">Net deferred tax asset realized based upon future taxable income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsNet" xml:lang="en-US">Net deferred tax asset realized based upon future taxable income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DeferredTaxAssetsNet" xlink:to="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xml:lang="en-US">Deferred Tax Assets, Operating Loss Carryforwards, Domestic</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xml:lang="en-US">Federal net operating loss carryforwards</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness" xlink:label="loc_2I0HHGGF8208_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness" xml:lang="en-US">Deferred Tax Assets, Tax Credit Carryforwards, General Business</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness" xml:lang="en-US">Federal general business tax credits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness" xlink:to="lab_4K2JJIIH0420_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax" xml:lang="en-US">Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax" xml:lang="en-US">Federal alternative minimum tax credits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FederalAlternativeMinimumTaxCreditsSubjectToAnnualLimitation" xlink:label="loc_2I0HHGGF8208_ucbi_FederalAlternativeMinimumTaxCreditsSubjectToAnnualLimitation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FederalAlternativeMinimumTaxCreditsSubjectToAnnualLimitation" xml:lang="en-US">Federal Alternative Minimum Tax Credits Subject To Annual Limitation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FederalAlternativeMinimumTaxCreditsSubjectToAnnualLimitation" xml:lang="en-US">Federal alternative minimum tax credits subject to annual limitation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FederalAlternativeMinimumTaxCreditsSubjectToAnnualLimitation" xml:lang="en-US">Represents federal alternative minimum tax credits subject to annual limitation.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FederalAlternativeMinimumTaxCreditsSubjectToAnnualLimitation" xlink:to="lab_4K2JJIIH0420_ucbi_FederalAlternativeMinimumTaxCreditsSubjectToAnnualLimitation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxCreditCarryforwardAmount" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TaxCreditCarryforwardAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TaxCreditCarryforwardAmount" xml:lang="en-US">Tax Credit Carryforward, Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TaxCreditCarryforwardAmount" xml:lang="en-US">State tax credits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TaxCreditCarryforwardAmount" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TaxCreditCarryforwardAmount"/>






<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xml:lang="en-US">Schedule of Defined Benefit Plans Disclosures [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_PlanNameAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PlanNameAxis" xml:lang="en-US">Plan Name [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PlanNameAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_PlanNameAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PlanNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PlanNameDomain" xml:lang="en-US">Plan Name [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PlanNameDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PlanNameDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ModifiedRetirementPlanMember" xlink:label="loc_2I0HHGGF8208_ucbi_ModifiedRetirementPlanMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ModifiedRetirementPlanMember" xml:lang="en-US">Modified Retirement Plan [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ModifiedRetirementPlanMember" xml:lang="en-US">Modified Retirement Plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ModifiedRetirementPlanMember" xml:lang="en-US">Represents information about Modified Retirement Plan.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ModifiedRetirementPlanMember" xlink:to="lab_4K2JJIIH0420_ucbi_ModifiedRetirementPlanMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetirementPlanFundingStatusAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_RetirementPlanFundingStatusAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_RetirementPlanFundingStatusAxis" xml:lang="en-US">Retirement Plan Funding Status [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_RetirementPlanFundingStatusAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_RetirementPlanFundingStatusAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetirementPlanFundingStatusDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_RetirementPlanFundingStatusDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RetirementPlanFundingStatusDomain" xml:lang="en-US">Retirement Plan Funding Status [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_RetirementPlanFundingStatusDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_RetirementPlanFundingStatusDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FundedPlanMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FundedPlanMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FundedPlanMember" xml:lang="en-US">Funded Plan [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FundedPlanMember" xml:lang="en-US">Funded Plan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FundedPlanMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FundedPlanMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanDisclosureLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanDisclosureLineItems" xml:lang="en-US">Defined Benefit Plan Disclosure [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanDisclosureLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate" xml:lang="en-US">Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate" xml:lang="en-US">Discount rate for disclosures</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xml:lang="en-US">Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xml:lang="en-US">Discount rate for net periodic benefit cost</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xml:lang="en-US">Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xml:lang="en-US">Expected long-term rate of return</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets"/>




<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MeasurementDateOfDefinedBenefitPlan" xlink:label="loc_I9G01G3G9932937HF776_ucbi_MeasurementDateOfDefinedBenefitPlan"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MeasurementDateOfDefinedBenefitPlan" xml:lang="en-US">Measurement Date Of Defined Benefit Plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MeasurementDateOfDefinedBenefitPlan" xml:lang="en-US">Measurement date</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MeasurementDateOfDefinedBenefitPlan" xml:lang="en-US">The date(s) used to measure (at least the majority of) plan assets and benefit obligations for defined benefit pension and other postretirement benefit plans. Disclosure required by FAS 132R paragraph 5k prior to being amended by FAS 158.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_MeasurementDateOfDefinedBenefitPlan" xlink:to="lab_K1I23I5I1154159JH998_ucbi_MeasurementDateOfDefinedBenefitPlan"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward" xml:lang="en-US">Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward" xml:lang="en-US">Accumulated benefit obligation:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligation" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanBenefitObligation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanBenefitObligation" xml:lang="en-US">Defined Benefit Plan, Benefit Obligation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanBenefitObligation" xml:lang="en-US">Accumulated benefit obligation - beginning of year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanBenefitObligation" xml:lang="en-US">Accumulated benefit obligation - end of year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanBenefitObligation" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanBenefitObligation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanServiceCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanServiceCost" xml:lang="en-US">Defined Benefit Plan, Service Cost</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanServiceCost" xml:lang="en-US">Service cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanServiceCost" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanServiceCost"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanInterestCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanInterestCost" xml:lang="en-US">Defined Benefit Plan, Interest Cost</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanInterestCost" xml:lang="en-US">Interest cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanInterestCost" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanInterestCost"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanPlanAmendments" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanPlanAmendments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanPlanAmendments" xml:lang="en-US">Defined Benefit Plan, Plan Amendments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanPlanAmendments" xml:lang="en-US">Plan amendments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanPlanAmendments" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanPlanAmendments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanActuarialGainLoss" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanActuarialGainLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanActuarialGainLoss" xml:lang="en-US">Defined Benefit Plan, Actuarial Gain (Loss)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanActuarialGainLoss" xml:lang="en-US">Actuarial (gains) losses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanActuarialGainLoss" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanActuarialGainLoss"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid" xml:lang="en-US">Defined Benefit Plan, Benefit Obligation, Benefits Paid</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid" xml:lang="en-US">Benefits paid</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xml:lang="en-US">Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xml:lang="en-US">Change in plan assets, at fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xml:lang="en-US">Defined Benefit Plan, Fair Value of Plan Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xml:lang="en-US">Total plan assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xml:lang="en-US">Plan assets - end of year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xml:lang="en-US">Beginning plan assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xml:lang="en-US">Plan assets - end of year</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets" xml:lang="en-US">Defined Benefit Plan, Actual Return on Plan Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets" xml:lang="en-US">Actual return</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanContributionsByEmployer"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanContributionsByEmployer" xml:lang="en-US">Defined Benefit Plan, Contributions by Employer</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanContributionsByEmployer" xml:lang="en-US">Employer contribution</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanContributionsByEmployer"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanFundedStatusOfPlan"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xml:lang="en-US">Defined Benefit Plan, Funded Status of Plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xml:lang="en-US">Expected return on plan assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xml:lang="en-US">Funded status - end of year (plan assets less benefit obligations)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xml:lang="en-US">Funded status - end of year (plan assets less benefit obligations)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanFundedStatusOfPlan"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xml:lang="en-US">Defined Benefit Plan, Expected Return on Plan Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xml:lang="en-US">Expected return on plan assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xml:lang="en-US">Expected return on plan assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xml:lang="en-US">Prior service costs</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xml:lang="en-US">Amortization of estimated net loss and prior service cost from accumulated other comprehensive income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xml:lang="en-US">Amortization of prior service cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xml:lang="en-US">Defined Benefit Plan, Amortization of Gains (Losses)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xml:lang="en-US">Estimated net loss</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xml:lang="en-US">Amortization of net losses</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xml:lang="en-US">Amortization of net losses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xml:lang="en-US">Defined Benefit Plan, Net Periodic Benefit Cost</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xml:lang="en-US">Net periodic benefit cost</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xml:lang="en-US">Net periodic benefit cost</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xml:lang="en-US">Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xml:lang="en-US">2018</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xml:lang="en-US">Defined Benefit Plan, Expected Future Benefit Payments, Year Two</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xml:lang="en-US">2019</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xml:lang="en-US">Defined Benefit Plan, Expected Future Benefit Payments, Year Three</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xml:lang="en-US">2020</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xml:lang="en-US">Defined Benefit Plan, Expected Future Benefit Payments, Year Four</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xml:lang="en-US">2021</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xml:lang="en-US">Defined Benefit Plan, Expected Future Benefit Payments, Year Five</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xml:lang="en-US">2022</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xml:lang="en-US">Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xml:lang="en-US">2023-2026</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xml:lang="en-US">Following five years</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_EstimatedFutureBenefitPaymentsExpectedToBePaid" xlink:label="loc_2I0HHGGF8208_ucbi_EstimatedFutureBenefitPaymentsExpectedToBePaid"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_EstimatedFutureBenefitPaymentsExpectedToBePaid" xml:lang="en-US">Estimated Future Benefit Payments Expected To Be Paid</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_ucbi_EstimatedFutureBenefitPaymentsExpectedToBePaid" xml:lang="en-US">Total</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_EstimatedFutureBenefitPaymentsExpectedToBePaid" xml:lang="en-US">Represents estimated future benefit payments expected to be paid.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_EstimatedFutureBenefitPaymentsExpectedToBePaid" xlink:to="lab_4K2JJIIH0420_ucbi_EstimatedFutureBenefitPaymentsExpectedToBePaid"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xml:lang="en-US">Defined Benefit Plan, Asset Categories [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_PlanAssetCategoriesDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PlanAssetCategoriesDomain" xml:lang="en-US">Plan Asset Categories [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PlanAssetCategoriesDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_PlanAssetCategoriesDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_MoneyMarketFundsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MoneyMarketFundsMember" xml:lang="en-US">Money Market Funds [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_MoneyMarketFundsMember" xml:lang="en-US">Money market fund</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_MoneyMarketFundsMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_MoneyMarketFundsMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MutualFundsMember" xlink:label="loc_2I0HHGGF8208_ucbi_MutualFundsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_MutualFundsMember" xml:lang="en-US">Mutual Funds [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_MutualFundsMember" xml:lang="en-US">Mutual funds</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_MutualFundsMember" xml:lang="en-US">Represents information about mutual fund investment.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_MutualFundsMember" xlink:to="lab_4K2JJIIH0420_ucbi_MutualFundsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_EquitySecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EquitySecuritiesMember" xml:lang="en-US">Equity Securities [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EquitySecuritiesMember" xml:lang="en-US">Corporate stocks</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_EquitySecuritiesMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_EquitySecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExchangeTradedFundsMember" xlink:label="loc_2I0HHGGF8208_us-gaap_ExchangeTradedFundsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ExchangeTradedFundsMember" xml:lang="en-US">Exchange Traded Funds [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ExchangeTradedFundsMember" xml:lang="en-US">Exchange traded funds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ExchangeTradedFundsMember" xlink:to="lab_4K2JJIIH0420_us-gaap_ExchangeTradedFundsMember"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueByMeasurementBasisAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueByMeasurementBasisAxis" xml:lang="en-US">Measurement Basis [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueByMeasurementBasisAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueByMeasurementBasisAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PortionAtFairValueFairValueDisclosureMember" xml:lang="en-US">Portion at Fair Value Measurement [Member] [Default]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:label="loc_2I0HHGGF8208_us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_EstimateOfFairValueFairValueDisclosureMember" xml:lang="en-US">Estimate of Fair Value Measurement [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_EstimateOfFairValueFairValueDisclosureMember" xml:lang="en-US">Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_EstimateOfFairValueFairValueDisclosureMember" xml:lang="en-US">Total</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:to="lab_4K2JJIIH0420_us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueByFairValueHierarchyLevelAxis" xml:lang="en-US">Fair Value, Hierarchy [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xml:lang="en-US">Fair Value Hierarchy [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsLevel1Member"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsLevel1Member" xml:lang="en-US">Fair Value, Inputs, Level 1 [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsLevel1Member" xml:lang="en-US">Level 1</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsLevel1Member" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsLevel1Member"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueInputsLevel2Member"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueInputsLevel2Member" xml:lang="en-US">Fair Value, Inputs, Level 2 [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueInputsLevel2Member" xml:lang="en-US">Level 2</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueInputsLevel2Member" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueInputsLevel2Member"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsLevel3Member"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsLevel3Member" xml:lang="en-US">Fair Value, Inputs, Level 3 [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsLevel3Member" xml:lang="en-US">Level 3</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsLevel3Member" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsLevel3Member"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xml:lang="en-US">Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xml:lang="en-US">Employee matching contributions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1" xml:lang="en-US">Deferred Compensation Arrangement with Individual, Requisite Service Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1" xml:lang="en-US">Duration of service period to receive matching contribution</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeferredCompensationArrangementWithIndividualRequisiteVestingPeriod" xlink:label="loc_2I0HHGGF8208_ucbi_DeferredCompensationArrangementWithIndividualRequisiteVestingPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredCompensationArrangementWithIndividualRequisiteVestingPeriod" xml:lang="en-US">Deferred Compensation Arrangement With Individual Requisite Vesting Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredCompensationArrangementWithIndividualRequisiteVestingPeriod" xml:lang="en-US">Vesting period of benefits</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredCompensationArrangementWithIndividualRequisiteVestingPeriod" xml:lang="en-US">This element represents deferred compensation arrangement with individual requisite vesting period.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DeferredCompensationArrangementWithIndividualRequisiteVestingPeriod" xlink:to="lab_4K2JJIIH0420_ucbi_DeferredCompensationArrangementWithIndividualRequisiteVestingPeriod"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DefinedContributionPlanReducedMaximumContributionOfEligibleCompensationPerEmployeePercent" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DefinedContributionPlanReducedMaximumContributionOfEligibleCompensationPerEmployeePercent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DefinedContributionPlanReducedMaximumContributionOfEligibleCompensationPerEmployeePercent" xml:lang="en-US">Defined Contribution Plan Reduced Maximum Contribution of Eligible Compensation Per Employee Percent</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DefinedContributionPlanReducedMaximumContributionOfEligibleCompensationPerEmployeePercent" xml:lang="en-US">Employee eligible compensation contributions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DefinedContributionPlanReducedMaximumContributionOfEligibleCompensationPerEmployeePercent" xml:lang="en-US">This element represents defined contribution plan reduced maximum contribution of eligible compensation per employee percent.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DefinedContributionPlanReducedMaximumContributionOfEligibleCompensationPerEmployeePercent" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DefinedContributionPlanReducedMaximumContributionOfEligibleCompensationPerEmployeePercent"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DefinedContributionPlanReducedMaximumMatchingContributionPerEmployeePercent" xlink:label="loc_2I0HHGGF8208_ucbi_DefinedContributionPlanReducedMaximumMatchingContributionPerEmployeePercent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DefinedContributionPlanReducedMaximumMatchingContributionPerEmployeePercent" xml:lang="en-US">Defined Contribution Plan Reduced Maximum Matching Contribution Per Employee Percent</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DefinedContributionPlanReducedMaximumMatchingContributionPerEmployeePercent" xml:lang="en-US">Maximum matching contributions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DefinedContributionPlanReducedMaximumMatchingContributionPerEmployeePercent" xml:lang="en-US">This element represents defined contribution plan reduced maximum matching contribution per employee percent.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DefinedContributionPlanReducedMaximumMatchingContributionPerEmployeePercent" xlink:to="lab_4K2JJIIH0420_ucbi_DefinedContributionPlanReducedMaximumMatchingContributionPerEmployeePercent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AllocatedShareBasedCompensationExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AllocatedShareBasedCompensationExpense" xml:lang="en-US">Allocated Share-based Compensation Expense</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AllocatedShareBasedCompensationExpense" xml:lang="en-US">Compensation expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AllocatedShareBasedCompensationExpense"/>





<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DefinedContributionPlanEmployerMatchingContributionAmount" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DefinedContributionPlanEmployerMatchingContributionAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DefinedContributionPlanEmployerMatchingContributionAmount" xml:lang="en-US">Defined Contribution Plan Employer Matching Contribution Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DefinedContributionPlanEmployerMatchingContributionAmount" xml:lang="en-US">Recognized deferred compensation from continuing operation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DefinedContributionPlanEmployerMatchingContributionAmount" xml:lang="en-US">This element represents amount of defined contribution plan employer matching contribution.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DefinedContributionPlanEmployerMatchingContributionAmount" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DefinedContributionPlanEmployerMatchingContributionAmount"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear" xlink:label="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear" xml:lang="en-US">Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear" xml:lang="en-US">Expected contribution to plan in year 2018</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear" xlink:to="lab_4K2JJIIH0420_us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xml:lang="en-US">Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_BalanceSheetLocationAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_BalanceSheetLocationAxis" xml:lang="en-US">Balance Sheet Location [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_BalanceSheetLocationAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_BalanceSheetLocationAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_BalanceSheetLocationDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_BalanceSheetLocationDomain" xml:lang="en-US">Balance Sheet Location [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_BalanceSheetLocationDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_BalanceSheetLocationDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFinancialInstrumentsAssetsMember" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeFinancialInstrumentsAssetsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeFinancialInstrumentsAssetsMember" xml:lang="en-US">Derivative Financial Instruments, Assets [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeFinancialInstrumentsAssetsMember" xml:lang="en-US">Derivative assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeFinancialInstrumentsAssetsMember" xml:lang="en-US">Derivative financial instruments assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeFinancialInstrumentsAssetsMember" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeFinancialInstrumentsAssetsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember" xml:lang="en-US">Derivative Financial Instruments, Liabilities [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember" xml:lang="en-US">Derivative financial instruments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember" xml:lang="en-US">Derivative liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xml:lang="en-US">Hedging Relationship [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_HedgingRelationshipDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_HedgingRelationshipDomain" xml:lang="en-US">Hedging Relationship [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_HedgingRelationshipDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_HedgingRelationshipDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashFlowHedgingMember" xlink:label="loc_2I0HHGGF8208_us-gaap_CashFlowHedgingMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CashFlowHedgingMember" xml:lang="en-US">Cash Flow Hedging [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CashFlowHedgingMember" xml:lang="en-US">Cash flow hedging</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CashFlowHedgingMember" xlink:to="lab_4K2JJIIH0420_us-gaap_CashFlowHedgingMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueHedgingMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueHedgingMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueHedgingMember" xml:lang="en-US">Fair Value Hedging [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueHedgingMember" xml:lang="en-US">Fair value hedging of interest rate risk</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueHedgingMember" xml:lang="en-US">Fair value hedging</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueHedgingMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueHedgingMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BrokeredCertificateOfDepositMember" xlink:label="loc_2I0HHGGF8208_ucbi_BrokeredCertificateOfDepositMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BrokeredCertificateOfDepositMember" xml:lang="en-US">Brokered Certificate Of Deposit [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BrokeredCertificateOfDepositMember" xml:lang="en-US">Brokered CD's</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BrokeredCertificateOfDepositMember" xml:lang="en-US">Represents the brokered certificate of deposits.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BrokeredCertificateOfDepositMember" xlink:to="lab_4K2JJIIH0420_ucbi_BrokeredCertificateOfDepositMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateBondSecuritiesMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CorporateBondSecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CorporateBondSecuritiesMember" xml:lang="en-US">Corporate Bond Securities [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CorporateBondSecuritiesMember" xml:lang="en-US">Corporate Bonds</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CorporateBondSecuritiesMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CorporateBondSecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativesFairValueLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativesFairValueLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativesFairValueLineItems" xml:lang="en-US">Derivatives, Fair Value [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativesFairValueLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativesFairValueLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueHedgeAssetsAtFairValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueHedgeAssetsAtFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueHedgeAssetsAtFairValue" xml:lang="en-US">Fair Value Hedge Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueHedgeAssetsAtFairValue" xml:lang="en-US">Derivative instrument hedges assets fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueHedgeAssetsAtFairValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueHedgeAssetsAtFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueHedgeLiabilitiesAtFairValue" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueHedgeLiabilitiesAtFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueHedgeLiabilitiesAtFairValue" xml:lang="en-US">Fair Value Hedge Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueHedgeLiabilitiesAtFairValue" xml:lang="en-US">Derivative instrument hedges liabilities fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueHedgeLiabilitiesAtFairValue" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueHedgeLiabilitiesAtFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeInstrumentRiskAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeInstrumentRiskAxis" xml:lang="en-US">Derivative Instrument [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeInstrumentRiskAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeInstrumentRiskAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_DerivativeContractTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DerivativeContractTypeDomain" xml:lang="en-US">Derivative Contract [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DerivativeContractTypeDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_DerivativeContractTypeDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CustomerSwapPositionMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_CustomerSwapPositionMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CustomerSwapPositionMember" xml:lang="en-US">Customer Swap Position [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CustomerSwapPositionMember" xml:lang="en-US">Customer derivative positions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CustomerSwapPositionMember" xml:lang="en-US">Represents information of customer swap positions.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_CustomerSwapPositionMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_CustomerSwapPositionMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DealerOffsetToCustomerSwapPositionMember" xlink:label="loc_2I0HHGGF8208_ucbi_DealerOffsetToCustomerSwapPositionMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DealerOffsetToCustomerSwapPositionMember" xml:lang="en-US">Dealer Offset To Customer Swap Position [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DealerOffsetToCustomerSwapPositionMember" xml:lang="en-US">Dealer offsets to customer derivative positions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DealerOffsetToCustomerSwapPositionMember" xml:lang="en-US">Represents the information regarding dealer offset to customer swap position.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DealerOffsetToCustomerSwapPositionMember" xlink:to="lab_4K2JJIIH0420_ucbi_DealerOffsetToCustomerSwapPositionMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_RiskParticipationsMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_RiskParticipationsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RiskParticipationsMember" xml:lang="en-US">Risk Participations [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RiskParticipationsMember" xml:lang="en-US">Risk participations</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_RiskParticipationsMember" xml:lang="en-US">Risk participations.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_RiskParticipationsMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_RiskParticipationsMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MortgageBankingLoanCommitmentMember" xlink:label="loc_2I0HHGGF8208_ucbi_MortgageBankingLoanCommitmentMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_MortgageBankingLoanCommitmentMember" xml:lang="en-US">Mortgage Banking Loan Commitment [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_MortgageBankingLoanCommitmentMember" xml:lang="en-US">Mortgage banking - loan commitment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_MortgageBankingLoanCommitmentMember" xml:lang="en-US">Represents information of mortgage banking - loan commitment.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_MortgageBankingLoanCommitmentMember" xlink:to="lab_4K2JJIIH0420_ucbi_MortgageBankingLoanCommitmentMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MortgageBankingForwardSalesCommitmentMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_MortgageBankingForwardSalesCommitmentMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MortgageBankingForwardSalesCommitmentMember" xml:lang="en-US">Mortgage Banking Forward Sales Commitment [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MortgageBankingForwardSalesCommitmentMember" xml:lang="en-US">Mortgage banking - forward sales commitment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MortgageBankingForwardSalesCommitmentMember" xml:lang="en-US">Represents mortgage banking - forward sales commitment.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_MortgageBankingForwardSalesCommitmentMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_MortgageBankingForwardSalesCommitmentMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BifurcatedEmbeddedDerivativeMember" xlink:label="loc_2I0HHGGF8208_ucbi_BifurcatedEmbeddedDerivativeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_BifurcatedEmbeddedDerivativeMember" xml:lang="en-US">Bifurcated Embedded Derivative [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_BifurcatedEmbeddedDerivativeMember" xml:lang="en-US">Bifurcated embedded derivatives</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_BifurcatedEmbeddedDerivativeMember" xml:lang="en-US">Represents the bifurcated embedded derivatives.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_BifurcatedEmbeddedDerivativeMember" xlink:to="lab_4K2JJIIH0420_ucbi_BifurcatedEmbeddedDerivativeMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateCapMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestRateCapMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestRateCapMember" xml:lang="en-US">Interest Rate Cap [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestRateCapMember" xml:lang="en-US">Interest rate caps</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InterestRateCapMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InterestRateCapMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DealerOffsetsToBifurcatedEmbeddedDerivativesMember" xlink:label="loc_2I0HHGGF8208_ucbi_DealerOffsetsToBifurcatedEmbeddedDerivativesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DealerOffsetsToBifurcatedEmbeddedDerivativesMember" xml:lang="en-US">Dealer Offsets To Bifurcated Embedded Derivatives [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DealerOffsetsToBifurcatedEmbeddedDerivativesMember" xml:lang="en-US">Dealer offsets to bifurcated embedded derivatives</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DealerOffsetsToBifurcatedEmbeddedDerivativesMember" xml:lang="en-US">Represents information of dealer offsets to bifurcated embedded derivatives.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DealerOffsetsToBifurcatedEmbeddedDerivativesMember" xlink:to="lab_4K2JJIIH0420_ucbi_DealerOffsetsToBifurcatedEmbeddedDerivativesMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_OffSettingPositionsForDeDesignatedCashFlowHedgesMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_OffSettingPositionsForDeDesignatedCashFlowHedgesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OffSettingPositionsForDeDesignatedCashFlowHedgesMember" xml:lang="en-US">Off Setting Positions For De Designated Cash Flow Hedges [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OffSettingPositionsForDeDesignatedCashFlowHedgesMember" xml:lang="en-US">Offsetting positions for de-designated cash flow hedges</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OffSettingPositionsForDeDesignatedCashFlowHedgesMember" xml:lang="en-US">Represents offsetting positions for de-designated cash flow hedges.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_OffSettingPositionsForDeDesignatedCashFlowHedgesMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_OffSettingPositionsForDeDesignatedCashFlowHedgesMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeDesignatedCashFlowHedgeMember" xlink:label="loc_2I0HHGGF8208_ucbi_DeDesignatedCashFlowHedgeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DeDesignatedCashFlowHedgeMember" xml:lang="en-US">De Designated Cash Flow Hedge [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DeDesignatedCashFlowHedgeMember" xml:lang="en-US">De-designated hedges</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DeDesignatedCashFlowHedgeMember" xml:lang="en-US">Represents information of de-designated cash flow hedge.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DeDesignatedCashFlowHedgeMember" xlink:to="lab_4K2JJIIH0420_ucbi_DeDesignatedCashFlowHedgeMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xml:lang="en-US">Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xml:lang="en-US">Interest rate derivative instruments not designated as hedging instruments, assets at fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xml:lang="en-US">Derivatives not accounted for as hedges, Asset derivatives, Fair Value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xml:lang="en-US">Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xml:lang="en-US">Interest rate derivative instruments not designated as hedging instruments, liabilities at fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xml:lang="en-US">Derivatives not accounted for as hedges, Liability derivatives, Fair Value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:to="lab_4K2JJIIH0420_us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xml:lang="en-US">Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeMember" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestIncomeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestIncomeMember" xml:lang="en-US">Interest Income [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestIncomeMember" xml:lang="en-US">Interest revenue</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InterestIncomeMember" xlink:to="lab_4K2JJIIH0420_us-gaap_InterestIncomeMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseMember" xml:lang="en-US">Interest Expense [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseMember" xml:lang="en-US">Interest expense</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_InterestExpenseMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_InterestExpenseMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_2I0HHGGF8208_us-gaap_InterestRateSwapMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestRateSwapMember" xml:lang="en-US">Interest Rate Swap [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InterestRateSwapMember" xml:lang="en-US">Interest rate swaps</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CustomerDerivativesAndDealerOffsetsMember" xlink:label="loc_2I0HHGGF8208_ucbi_CustomerDerivativesAndDealerOffsetsMember"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_CustomerDerivativesAndDealerOffsetsMember" xml:lang="en-US">Customer derivatives and dealer offsets.</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BifurcatedEmbeddedDerivativesAndDealerOffsetsMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_BifurcatedEmbeddedDerivativesAndDealerOffsetsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BifurcatedEmbeddedDerivativesAndDealerOffsetsMember" xml:lang="en-US">Bifurcated Embedded Derivatives And Dealer Offsets [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BifurcatedEmbeddedDerivativesAndDealerOffsetsMember" xml:lang="en-US">Bifurcated embedded derivatives and dealer offsets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BifurcatedEmbeddedDerivativesAndDealerOffsetsMember" xml:lang="en-US">Bifurcated embedded derivatives and dealer offsets.</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MortgageBankingDerivativesMember" xlink:label="loc_2I0HHGGF8208_ucbi_MortgageBankingDerivativesMember"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_MortgageBankingDerivativesMember" xml:lang="en-US">Mortgage banking derivatives.</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_OtherFeeRevenueMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_OtherFeeRevenueMember"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_OtherFeeRevenueMember" xml:lang="en-US">Other fee revenue.</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MortgageLoanRevenueMember" xlink:label="loc_2I0HHGGF8208_ucbi_MortgageLoanRevenueMember"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_MortgageLoanRevenueMember" xml:lang="en-US">Mortgage loan revenue.</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeGainLossOnDerivativeNet"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLossOnDerivative" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DerivativeLossOnDerivative"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable" xml:lang="en-US">Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table]</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidatedEntitiesAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_ConsolidatedEntitiesAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ConsolidatedEntitiesAxis" xml:lang="en-US">Consolidated Entities [Axis]</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ParentCompanyMember" xlink:label="loc_2I0HHGGF8208_us-gaap_ParentCompanyMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ParentCompanyMember" xml:lang="en-US">Parent Company [Member]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ParentCompanyMember" xml:lang="en-US">United Community Bank</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RiskBasedRatiosAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_RiskBasedRatiosAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RiskBasedRatiosAbstract" xml:lang="en-US">Risk Based Ratios [Abstract]</label>
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<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommonEquityTierOneCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xlink:label="loc_I9G01G3G9932937HF776_ucbi_CommonEquityTierOneCapitalRequiredForCapitalAdequacyToRiskWeightedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommonEquityTierOneCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xml:lang="en-US">Common Equity Tier One Capital Required For Capital Adequacy To Risk Weighted Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommonEquityTierOneCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xml:lang="en-US">Common equity tier 1 capital, Minimum</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_CommonEquityTierOneCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xml:lang="en-US">Common Equity Tier One Capital Required For Capital Adequacy To Risk Weighted Assets.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_CommonEquityTierOneCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xlink:to="lab_K1I23I5I1154159JH998_ucbi_CommonEquityTierOneCapitalRequiredForCapitalAdequacyToRiskWeightedAssets"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommonEquityTier1CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xlink:label="loc_2I0HHGGF8208_ucbi_CommonEquityTier1CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_CommonEquityTier1CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xml:lang="en-US">Common Equity Tier 1 Capital Required To Be Well Capitalized To Risk Weighted Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_CommonEquityTier1CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xml:lang="en-US">Common equity tier 1 capital, Well Capitalized</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_CommonEquityTier1CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xml:lang="en-US">Common Equity Tier 1 Capital Required To Be Well Capitalized To Risk Weighted Assets.</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonEquityTierOneCapitalRatio" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommonEquityTierOneCapitalRatio"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonEquityTierOneCapitalRatio" xml:lang="en-US">Common Equity Tier One Capital Ratio</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonEquityTierOneCapitalRatio" xml:lang="en-US">Common equity tier 1 capital</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xml:lang="en-US">Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xml:lang="en-US">Tier 1 capital, Minimum</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xml:lang="en-US">Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xml:lang="en-US">Tier 1 capital, Well Capitalized</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xml:lang="en-US">Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets" xml:lang="en-US">Tier One Risk Based Capital to Risk Weighted Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets" xml:lang="en-US">Tier 1 capital</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xml:lang="en-US">Capital Required for Capital Adequacy to Risk Weighted Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xml:lang="en-US">Total capital, Minimum</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xml:lang="en-US">Minimum total risk based capital ratio to be maintained by the bank</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xml:lang="en-US">Capital Required to be Well Capitalized to Risk Weighted Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xml:lang="en-US">Total capital, Well Capitalized</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xml:lang="en-US">Total risk-based capital ratio</label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalToRiskWeightedAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CapitalToRiskWeightedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CapitalToRiskWeightedAssets" xml:lang="en-US">Capital to Risk Weighted Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CapitalToRiskWeightedAssets" xml:lang="en-US">Total capital</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CapitalToRiskWeightedAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CapitalToRiskWeightedAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets" xml:lang="en-US">Tier One Leverage Capital Required for Capital Adequacy to Average Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets" xml:lang="en-US">Tier 1 Leverage ratio, Minimum</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets" xml:lang="en-US">Minimum Tier 1 leverage ratio require to be maintained by the bank</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets" xml:lang="en-US">Tier One Leverage Capital Required to be Well Capitalized to Average Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets" xml:lang="en-US">Tier 1 Leverage Ratio, Well Capitalized</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapitalToAverageAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_TierOneLeverageCapitalToAverageAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneLeverageCapitalToAverageAssets" xml:lang="en-US">Tier One Leverage Capital to Average Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneLeverageCapitalToAverageAssets" xml:lang="en-US">Tier 1 Leverage ratio</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TierOneLeverageCapitalToAverageAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_TierOneLeverageCapitalToAverageAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonEquityTierOneCapital" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommonEquityTierOneCapital"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonEquityTierOneCapital" xml:lang="en-US">Common Equity Tier One Capital</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommonEquityTierOneCapital" xml:lang="en-US">Common equity tier 1 capital</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CommonEquityTierOneCapital" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CommonEquityTierOneCapital"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapital" xlink:label="loc_2I0HHGGF8208_us-gaap_TierOneRiskBasedCapital"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneRiskBasedCapital" xml:lang="en-US">Tier One Risk Based Capital</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_TierOneRiskBasedCapital" xml:lang="en-US">Tier 1 capital</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_TierOneRiskBasedCapital" xlink:to="lab_4K2JJIIH0420_us-gaap_TierOneRiskBasedCapital"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Capital" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_Capital"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_Capital" xml:lang="en-US">Capital</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_Capital" xml:lang="en-US">Total capital</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_Capital" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_Capital"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RiskWeightedAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_RiskWeightedAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RiskWeightedAssets" xml:lang="en-US">Risk Weighted Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_RiskWeightedAssets" xml:lang="en-US">Risk-weighted assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_RiskWeightedAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_RiskWeightedAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RegulatoryAssets" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_RegulatoryAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_RegulatoryAssets" xml:lang="en-US">Regulatory Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_RegulatoryAssets" xml:lang="en-US">Average total assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_RegulatoryAssets" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_RegulatoryAssets"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_LeverageRatioAdequatelyCapitalized" xlink:label="loc_2I0HHGGF8208_ucbi_LeverageRatioAdequatelyCapitalized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_LeverageRatioAdequatelyCapitalized" xml:lang="en-US">Leverage Ratio Adequately Capitalized</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_LeverageRatioAdequatelyCapitalized" xml:lang="en-US">Leverage ratio for supervisory rating of 1</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_LeverageRatioAdequatelyCapitalized" xml:lang="en-US">Represents leverage ratio adequately capitalized.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_LeverageRatioAdequatelyCapitalized" xlink:to="lab_4K2JJIIH0420_ucbi_LeverageRatioAdequatelyCapitalized"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval" xml:lang="en-US">Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval" xml:lang="en-US">Approved cash dividend</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MaximumPercentageOfCreditToAffiliateUnderFederalReserveAct" xlink:label="loc_2I0HHGGF8208_ucbi_MaximumPercentageOfCreditToAffiliateUnderFederalReserveAct"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_MaximumPercentageOfCreditToAffiliateUnderFederalReserveAct" xml:lang="en-US">Maximum Percentage of Credit to Affiliate Under Federal Reserve Act</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_MaximumPercentageOfCreditToAffiliateUnderFederalReserveAct" xml:lang="en-US">Maximum percentage of credit to affiliate under federal reserve act</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_MaximumPercentageOfCreditToAffiliateUnderFederalReserveAct" xml:lang="en-US">This elements represents maximum percentage of credit to affiliate under federal reserve act.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_MaximumPercentageOfCreditToAffiliateUnderFederalReserveAct" xlink:to="lab_4K2JJIIH0420_ucbi_MaximumPercentageOfCreditToAffiliateUnderFederalReserveAct"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MaximumPercentageOfCreditToAllAffiliatesUnderFederalReserveAct" xlink:label="loc_I9G01G3G9932937HF776_ucbi_MaximumPercentageOfCreditToAllAffiliatesUnderFederalReserveAct"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MaximumPercentageOfCreditToAllAffiliatesUnderFederalReserveAct" xml:lang="en-US">Maximum Percentage of Credit to all Affiliates under Federal Reserve Act</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MaximumPercentageOfCreditToAllAffiliatesUnderFederalReserveAct" xml:lang="en-US">Maximum percentage of credit to all affiliates under federal reserve act</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MaximumPercentageOfCreditToAllAffiliatesUnderFederalReserveAct" xml:lang="en-US">This elements represents maximum percentage of credit to all affiliates under federal reserve act.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_MaximumPercentageOfCreditToAllAffiliatesUnderFederalReserveAct" xlink:to="lab_K1I23I5I1154159JH998_ucbi_MaximumPercentageOfCreditToAllAffiliatesUnderFederalReserveAct"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable" xlink:label="loc_2I0HHGGF8208_us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable" xml:lang="en-US">Schedule of Fair Value, Off-balance Sheet Risks [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable" xlink:to="lab_4K2JJIIH0420_us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsToExtendCreditMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CommitmentsToExtendCreditMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommitmentsToExtendCreditMember" xml:lang="en-US">Commitments to Extend Credit [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CommitmentsToExtendCreditMember" xml:lang="en-US">Commitments to extend credit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CommitmentsToExtendCreditMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CommitmentsToExtendCreditMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LetterOfCreditMember" xlink:label="loc_2I0HHGGF8208_us-gaap_LetterOfCreditMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LetterOfCreditMember" xml:lang="en-US">Letter of Credit [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LetterOfCreditMember" xml:lang="en-US">Letters of credit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LetterOfCreditMember" xlink:to="lab_4K2JJIIH0420_us-gaap_LetterOfCreditMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MinimumLeasePaymentsMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_MinimumLeasePaymentsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MinimumLeasePaymentsMember" xml:lang="en-US">Minimum Lease Payments [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MinimumLeasePaymentsMember" xml:lang="en-US">Minimum Lease Payments</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MinimumLeasePaymentsMember" xml:lang="en-US">Represents information of minimum lease payments.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_MinimumLeasePaymentsMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_MinimumLeasePaymentsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnusedCommitmentsToExtendCredit" xlink:label="loc_2I0HHGGF8208_us-gaap_UnusedCommitmentsToExtendCredit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_UnusedCommitmentsToExtendCredit" xml:lang="en-US">Unused Commitments to Extend Credit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_UnusedCommitmentsToExtendCredit" xml:lang="en-US">Financial instruments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_UnusedCommitmentsToExtendCredit" xlink:to="lab_4K2JJIIH0420_us-gaap_UnusedCommitmentsToExtendCredit"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_InvestmentInLimitedPartnerships" xlink:label="loc_I9G01G3G9932937HF776_ucbi_InvestmentInLimitedPartnerships"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_InvestmentInLimitedPartnerships" xml:lang="en-US">Investment In Limited Partnerships</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_InvestmentInLimitedPartnerships" xml:lang="en-US">Investment in limited partnerships</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_InvestmentInLimitedPartnerships" xml:lang="en-US">Represents investment in limited partnerships.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_InvestmentInLimitedPartnerships" xlink:to="lab_K1I23I5I1154159JH998_ucbi_InvestmentInLimitedPartnerships"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommitmentForAdditionalFund" xlink:label="loc_2I0HHGGF8208_ucbi_CommitmentForAdditionalFund"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_CommitmentForAdditionalFund" xml:lang="en-US">Commitment For Additional Fund</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_CommitmentForAdditionalFund" xml:lang="en-US">Commitment for additional fund</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_CommitmentForAdditionalFund" xml:lang="en-US">Represents commitment for additional fund.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_CommitmentForAdditionalFund" xlink:to="lab_4K2JJIIH0420_ucbi_CommitmentForAdditionalFund"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_StockholdersEquityNoteDisclosureTable" xlink:label="loc_I9G01G3G9932937HF776_ucbi_StockholdersEquityNoteDisclosureTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_StockholdersEquityNoteDisclosureTable" xml:lang="en-US">Stockholders Equity Note Disclosure [Table]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_StockholdersEquityNoteDisclosureTable" xml:lang="en-US">The entire disclosure for shareholders' equity comprised of common and preferred stock.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_StockholdersEquityNoteDisclosureTable" xlink:to="lab_K1I23I5I1154159JH998_ucbi_StockholdersEquityNoteDisclosureTable"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_StockholdersEquityNoteDisclosureLineItems" xlink:label="loc_2I0HHGGF8208_ucbi_StockholdersEquityNoteDisclosureLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_StockholdersEquityNoteDisclosureLineItems" xml:lang="en-US">Stockholders Equity Note Disclosure [Line Items]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_StockholdersEquityNoteDisclosureLineItems" xml:lang="en-US">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_StockholdersEquityNoteDisclosureLineItems" xlink:to="lab_4K2JJIIH0420_ucbi_StockholdersEquityNoteDisclosureLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PreferredStockSharesAuthorized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockSharesAuthorized" xml:lang="en-US">Preferred Stock, Shares Authorized</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockSharesAuthorized" xml:lang="en-US">Preferred stock, shares authorized</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PreferredStockSharesAuthorized" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockSharesAuthorized"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockDividendRatePercentage" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_PreferredStockDividendRatePercentage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockDividendRatePercentage" xml:lang="en-US">Preferred Stock, Dividend Rate, Percentage</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockDividendRatePercentage" xml:lang="en-US">Current dividend rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockDividendRatePercentage" xml:lang="en-US">Current dividend rate per annum</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_PreferredStockDividendRatePercentage" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_PreferredStockDividendRatePercentage"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_PercentageIncreaseDividendRate" xlink:label="loc_2I0HHGGF8208_ucbi_PercentageIncreaseDividendRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageIncreaseDividendRate" xml:lang="en-US">Percentage Increase Dividend Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageIncreaseDividendRate" xml:lang="en-US">Dividend rate increase to rate per annum</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageIncreaseDividendRate" xml:lang="en-US">Increase in dividend rate percentage</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageIncreaseDividendRate" xml:lang="en-US">Represents percentage increase in dividend rate .</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_PercentageIncreaseDividendRate" xlink:to="lab_4K2JJIIH0420_ucbi_PercentageIncreaseDividendRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRepurchaseProgramAuthorizedAmount1" xml:lang="en-US">Stock Repurchase Program, Authorized Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_StockRepurchaseProgramAuthorizedAmount1" xml:lang="en-US">Stock repurchase program, authorized amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:label="loc_2I0HHGGF8208_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xml:lang="en-US">Stock Repurchase Program, Remaining Authorized Repurchase Amount</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xml:lang="en-US">Value of common stock may be repurchased</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:to="lab_4K2JJIIH0420_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xml:lang="en-US">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_2I0HHGGF8208_us-gaap_EmployeeStockOptionMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_EmployeeStockOptionMember" xml:lang="en-US">Employee Stock Option [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_EmployeeStockOptionMember" xml:lang="en-US">Stock Options</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_EmployeeStockOptionMember" xlink:to="lab_4K2JJIIH0420_us-gaap_EmployeeStockOptionMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xml:lang="en-US">Restricted Stock, Shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xml:lang="en-US">Shares, Granted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US">Shares, Vested</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US">Shares, Vested</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod" xlink:label="loc_I9G01G3G9932937HF776_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Expired In Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod" xml:lang="en-US">Shares, Expired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod" xml:lang="en-US">Represents the number of equity-based payment instruments, excluding stock (or unit) options, that were expired during the reporting period.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod" xlink:to="lab_K1I23I5I1154159JH998_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US">Shares, Cancelled</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber" xml:lang="en-US">Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Exercisable Number</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber" xml:lang="en-US">Shares Vested / Exercisable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber" xml:lang="en-US">This element represents share based compensation arrangement by share based payment award equity instruments other than option exercisable number.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xml:lang="en-US">Restricted Stock, Weighted Average Grant Date Fair Value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted-Average Grant-Date Fair Value, Beginning balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted-Average Grant-Date Fair Value, Ending balance</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted-Average Grant-Date Fair Value, Granted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted-Average Grant-Date Fair Value, Vested</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredWeightedAverageGrantDateFairValue" xlink:label="loc_2I0HHGGF8208_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredWeightedAverageGrantDateFairValue" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Expired, Weighted Average Grant Date Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted-Average Grant-Date Fair Value, Expired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredWeightedAverageGrantDateFairValue" xml:lang="en-US">Represents the weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredWeightedAverageGrantDateFairValue" xlink:to="lab_4K2JJIIH0420_ucbi_Share-BasedCompensationArrangementByShare-BasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted-Average Grant-Date Fair Value, Cancelled</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageGrantDateFairValue" xlink:label="loc_2I0HHGGF8208_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageGrantDateFairValue" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other than Options Exercisable Weighted Average Grant Date Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted average grant date fair value, Vested / Exercisable</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageGrantDateFairValue" xml:lang="en-US">This element represents share based compensation arrangement by share based payment award equity instruments other than options exercisable weighted average grant date fair value.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageGrantDateFairValue" xlink:to="lab_4K2JJIIH0420_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested" xml:lang="en-US">Shares Vested, Aggregate Intrinsic Value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding" xlink:label="loc_2I0HHGGF8208_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding" xml:lang="en-US">Shares Outstanding, Aggregate Intrinsic Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding" xml:lang="en-US">Total intrinsic value of restricted stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding" xlink:to="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xml:lang="en-US">Stock Option, Shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xml:lang="en-US">Shares granted to executive officers as a part of their base compensation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xml:lang="en-US">Options, Granted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" xml:lang="en-US">Options, Vested</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xml:lang="en-US">Options, Expired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xml:lang="en-US">Options, Expired</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xml:lang="en-US">Options, Cancelled</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xml:lang="en-US">Options, Vested / Exercisable, Shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xml:lang="en-US">Share based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Exercise Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xml:lang="en-US">Stock Option, Weighted Average Exercise Price</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Weighted Average Exercise Price, Granted</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_Share-BasedCompensationArrangementsByShare-BasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice" xlink:label="loc_I9G01G3G9932937HF776_ucbi_Share-BasedCompensationArrangementsByShare-BasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_Share-BasedCompensationArrangementsByShare-BasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Share-Based Compensation Arrangements By Share-Based Payment Award, Options, Vested In Period, Weighted Average Exercise Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_Share-BasedCompensationArrangementsByShare-BasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Weighted Average Exercise Price, Vested</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_Share-BasedCompensationArrangementsByShare-BasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Weighted average per share amount at which vested shares of common stock by exercise of options.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_Share-BasedCompensationArrangementsByShare-BasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice" xlink:to="lab_K1I23I5I1154159JH998_ucbi_Share-BasedCompensationArrangementsByShare-BasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Weighted Average Exercise Price, Expired</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Weighted Average Exercise Price, Cancelled</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US">Weighted Average Exercise Price, Vested / Exercisable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xml:lang="en-US">Options Outstanding, Weighted Average Remaining Term (Yrs.)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="loc_2I0HHGGF8208_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xml:lang="en-US">Options, Exercisable, Weighted-Average Remaining Contractual Term (Yrs.)</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:to="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xml:lang="en-US">Options Outstanding, Aggregate Intrinsic Value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:label="loc_2I0HHGGF8208_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xml:lang="en-US">Options, Exercisable, Aggregate Intrinsic Value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:to="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xml:lang="en-US">Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xml:lang="en-US">Exercise Price Range [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ExercisePriceRangeTenToFifteenMember" xlink:label="loc_2I0HHGGF8208_ucbi_ExercisePriceRangeTenToFifteenMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeTenToFifteenMember" xml:lang="en-US">Exercise Price Range Ten To Fifteen Member [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeTenToFifteenMember" xml:lang="en-US">Exercise Price Range $10.00 to 15.00</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeTenToFifteenMember" xml:lang="en-US">Represents exercise price range from dollar ten To fifteen.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ExercisePriceRangeTenToFifteenMember" xlink:to="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeTenToFifteenMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ExercisePriceRangeFifteenPointZeroOneToTwentyMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ExercisePriceRangeFifteenPointZeroOneToTwentyMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeFifteenPointZeroOneToTwentyMember" xml:lang="en-US">Exercise Price Range Fifteen Point Zero One To Twenty Member [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeFifteenPointZeroOneToTwentyMember" xml:lang="en-US">Exercise Price Range $15.01 to 20.00</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeFifteenPointZeroOneToTwentyMember" xml:lang="en-US">Represents exercise price range from 15.01 to 20</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ExercisePriceRangeFifteenPointZeroOneToTwentyMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeFifteenPointZeroOneToTwentyMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ExercisePriceRangeTwentyPointZeroOneToTwentyFiveMember" xlink:label="loc_2I0HHGGF8208_ucbi_ExercisePriceRangeTwentyPointZeroOneToTwentyFiveMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeTwentyPointZeroOneToTwentyFiveMember" xml:lang="en-US">Exercise Price Range Twenty Point Zero One To Twenty Five Member [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeTwentyPointZeroOneToTwentyFiveMember" xml:lang="en-US">Exercise Price Range $20.01 to 25.00</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeTwentyPointZeroOneToTwentyFiveMember" xml:lang="en-US">Represents exercise price range from 20.01 to 25.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ExercisePriceRangeTwentyPointZeroOneToTwentyFiveMember" xlink:to="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeTwentyPointZeroOneToTwentyFiveMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ExercisePriceRangeTwentyFivePointZeroOneToThirtyMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ExercisePriceRangeTwentyFivePointZeroOneToThirtyMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeTwentyFivePointZeroOneToThirtyMember" xml:lang="en-US">Exercise Price Range Twenty Five Point Zero One To Thirty Member [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeTwentyFivePointZeroOneToThirtyMember" xml:lang="en-US">Exercise Price Range $25.01 to 30.00</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeTwentyFivePointZeroOneToThirtyMember" xml:lang="en-US">Represents exercise price range from 25.01 to 30.00</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ExercisePriceRangeTwentyFivePointZeroOneToThirtyMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeTwentyFivePointZeroOneToThirtyMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ExercisePriceRangeThirtyPointZeroOneToThirtyOnePointFiftyMember" xlink:label="loc_2I0HHGGF8208_ucbi_ExercisePriceRangeThirtyPointZeroOneToThirtyOnePointFiftyMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeThirtyPointZeroOneToThirtyOnePointFiftyMember" xml:lang="en-US">Exercise Price Range Thirty Point Zero One To Thirty One Point Fifty Member [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeThirtyPointZeroOneToThirtyOnePointFiftyMember" xml:lang="en-US">Exercise Price Range $30.01 to 31.50</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeThirtyPointZeroOneToThirtyOnePointFiftyMember" xml:lang="en-US">Represents information about Exercise Price Range 30.01 to 31.50.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ExercisePriceRangeThirtyPointZeroOneToThirtyOnePointFiftyMember" xlink:to="lab_4K2JJIIH0420_ucbi_ExercisePriceRangeThirtyPointZeroOneToThirtyOnePointFiftyMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ExercisePriceRangeTenToThirtyOnePointFiftyMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ExercisePriceRangeTenToThirtyOnePointFiftyMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeTenToThirtyOnePointFiftyMember" xml:lang="en-US">Exercise Price Range Ten To Thirty One Point Fifty [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeTenToThirtyOnePointFiftyMember" xml:lang="en-US">Exercise Price Range $10.00 to 31.50</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeTenToThirtyOnePointFiftyMember" xml:lang="en-US">Represents exercise price range from 10.00 to 31.50</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ExercisePriceRangeTenToThirtyOnePointFiftyMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ExercisePriceRangeTenToThirtyOnePointFiftyMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xml:lang="en-US">Options Outstanding, Shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xml:lang="en-US">Options Outstanding, Range Minimum</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xml:lang="en-US">Options Outstanding, Range Maximum</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xlink:label="loc_2I0HHGGF8208_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xml:lang="en-US">Options Outstanding, Weighted Average Price</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xlink:to="lab_4K2JJIIH0420_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xml:lang="en-US">Options Outstanding, Average Remaining Life</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xml:lang="en-US">Options, Exercisable, Shares</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" xml:lang="en-US">Weighted Average Exercise Price, Options Exercisable</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_2I0HHGGF8208_us-gaap_RestrictedStockUnitsRSUMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_RestrictedStockUnitsRSUMember" xml:lang="en-US">Restricted Stock Units (RSUs) [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_RestrictedStockUnitsRSUMember" xml:lang="en-US">Restricted stock units</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_RestrictedStockUnitsRSUMember" xlink:to="lab_4K2JJIIH0420_us-gaap_RestrictedStockUnitsRSUMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OtherOperatingIncomeExpenseMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherOperatingIncomeExpenseMember" xml:lang="en-US">Other Operating Income (Expense) [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherOperatingIncomeExpenseMember" xml:lang="en-US">Other operating expenses</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OtherOperatingIncomeExpenseMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OtherOperatingIncomeExpenseMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MergerRelatedAndOtherChargesMember" xlink:label="loc_2I0HHGGF8208_ucbi_MergerRelatedAndOtherChargesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_MergerRelatedAndOtherChargesMember" xml:lang="en-US">Merger Related And Other Charges [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_MergerRelatedAndOtherChargesMember" xml:lang="en-US">Merger related and other charges</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_MergerRelatedAndOtherChargesMember" xml:lang="en-US">Represents merger related and other charges.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_MergerRelatedAndOtherChargesMember" xlink:to="lab_4K2JJIIH0420_ucbi_MergerRelatedAndOtherChargesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xml:lang="en-US">Vesting period under plan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisablePeriod" xlink:label="loc_2I0HHGGF8208_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisablePeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisablePeriod" xml:lang="en-US">Share Based Compensation Arrangement by Share Based Payment Award Exercisable Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisablePeriod" xml:lang="en-US">Maximum exercisable period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisablePeriod" xml:lang="en-US">This element represents share based compensation arrangement by share based payment award exercisable period.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisablePeriod" xlink:to="lab_4K2JJIIH0420_ucbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisablePeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US">Additional awards granted under plan</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ModificationOfExistingAwardsDueToRetirement" xlink:label="loc_2I0HHGGF8208_ucbi_ModificationOfExistingAwardsDueToRetirement"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_ModificationOfExistingAwardsDueToRetirement" xml:lang="en-US">Modification Of Existing Awards Due To Retirement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_ModificationOfExistingAwardsDueToRetirement" xml:lang="en-US">Modification of existing awards resulting from vesting of unvested awards due to retirement</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_ModificationOfExistingAwardsDueToRetirement" xml:lang="en-US">Represents the amount of modification of existing awards resulting from an acceleration of vesting of unvested awards due to retirement.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_ModificationOfExistingAwardsDueToRetirement" xlink:to="lab_4K2JJIIH0420_ucbi_ModificationOfExistingAwardsDueToRetirement"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeferredIncomeTaxBenefitRelatedToCompensationExpenseForOptionsAndRestrictedStock" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DeferredIncomeTaxBenefitRelatedToCompensationExpenseForOptionsAndRestrictedStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredIncomeTaxBenefitRelatedToCompensationExpenseForOptionsAndRestrictedStock" xml:lang="en-US">Deferred Income Tax Benefit Related To Compensation Expense For Options And Restricted Stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredIncomeTaxBenefitRelatedToCompensationExpenseForOptionsAndRestrictedStock" xml:lang="en-US">Deferred income tax benefit related to compensation expense for options and restricted stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredIncomeTaxBenefitRelatedToCompensationExpenseForOptionsAndRestrictedStock" xml:lang="en-US">Represents amount of deferred income tax benefit related to compensation expense for options and restricted stock.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DeferredIncomeTaxBenefitRelatedToCompensationExpenseForOptionsAndRestrictedStock" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DeferredIncomeTaxBenefitRelatedToCompensationExpenseForOptionsAndRestrictedStock"/>




<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xml:lang="en-US">Unrecognized compensation cost related to nonvested stock options</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_2I0HHGGF8208_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xml:lang="en-US">Weighted average period over which compensation cost is expected to be recognized</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:to="lab_4K2JJIIH0420_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>





<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" xlink:label="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" xml:lang="en-US">Stock Issued During Period, Shares, Dividend Reinvestment Plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" xml:lang="en-US">Shares issued in connection with DRIP</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" xlink:to="lab_4K2JJIIH0420_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan"/>




<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions" xlink:label="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Discount for Postvesting Restrictions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions" xml:lang="en-US">Discount offered to employees under United has an Employee Stock Purchase Program (ESPP) to purchase shares of common stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions" xlink:to="lab_4K2JJIIH0420_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_StockIssuedDuringPeriodSharesEmployeeStockPensionPlan" xlink:label="loc_I9G01G3G9932937HF776_ucbi_StockIssuedDuringPeriodSharesEmployeeStockPensionPlan"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_StockIssuedDuringPeriodSharesEmployeeStockPensionPlan" xml:lang="en-US">Stock Issued During Period Shares Employee Stock Pension Plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_StockIssuedDuringPeriodSharesEmployeeStockPensionPlan" xml:lang="en-US">Stock issued during period shares employee stock pension plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_StockIssuedDuringPeriodSharesEmployeeStockPensionPlan" xml:lang="en-US">This element represents stock issued during period shares employee stock pension plan.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_StockIssuedDuringPeriodSharesEmployeeStockPensionPlan" xlink:to="lab_K1I23I5I1154159JH998_ucbi_StockIssuedDuringPeriodSharesEmployeeStockPensionPlan"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CommonStockIssuableSharesUnderDeferredCompensationPlan" xlink:label="loc_2I0HHGGF8208_ucbi_CommonStockIssuableSharesUnderDeferredCompensationPlan"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStockIssuableSharesUnderDeferredCompensationPlan" xml:lang="en-US">Common Stock Issuable Shares Under Deferred Compensation Plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStockIssuableSharesUnderDeferredCompensationPlan" xml:lang="en-US">Common stock issuable shares under deferred compensation plan</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_CommonStockIssuableSharesUnderDeferredCompensationPlan" xml:lang="en-US">This element represents common stock issuable shares under deferred compensation plan.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_CommonStockIssuableSharesUnderDeferredCompensationPlan" xlink:to="lab_4K2JJIIH0420_ucbi_CommonStockIssuableSharesUnderDeferredCompensationPlan"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xml:lang="en-US">Fair Value Measurements, Recurring and Nonrecurring [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueByMeasurementFrequencyAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueByMeasurementFrequencyAxis" xml:lang="en-US">Fair Value by Measurement Frequency [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueByMeasurementFrequencyAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementFrequencyDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementFrequencyDomain" xml:lang="en-US">Fair Value, Measurement Frequency [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementFrequencyDomain" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementFrequencyDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementsRecurringMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsRecurringMember" xml:lang="en-US">Fair Value, Measurements, Recurring [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsRecurringMember" xml:lang="en-US">Recurring</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementsRecurringMember" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsRecurringMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByAssetClassAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueByAssetClassAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueByAssetClassAxis" xml:lang="en-US">Fair Value by Asset Class [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueByAssetClassAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueByAssetClassAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, by Asset Class [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MortgageLoansHeldForSaleMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_MortgageLoansHeldForSaleMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MortgageLoansHeldForSaleMember" xml:lang="en-US">Mortgage Loans Held For Sale [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MortgageLoansHeldForSaleMember" xml:lang="en-US">Mortgage loans held for sale</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MortgageLoansHeldForSaleMember" xml:lang="en-US">Represents Mortgage loans held for sale.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_MortgageLoansHeldForSaleMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_MortgageLoansHeldForSaleMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeferredCompensationPlanAssetsMember" xlink:label="loc_2I0HHGGF8208_ucbi_DeferredCompensationPlanAssetsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredCompensationPlanAssetsMember" xml:lang="en-US">Deferred Compensation Plan Assets [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredCompensationPlanAssetsMember" xml:lang="en-US">Deferred compensation plan assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DeferredCompensationPlanAssetsMember" xml:lang="en-US">Represents information of deferred compensation plan assets.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DeferredCompensationPlanAssetsMember" xlink:to="lab_4K2JJIIH0420_ucbi_DeferredCompensationPlanAssetsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesAssetsMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SecuritiesAssetsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesAssetsMember" xml:lang="en-US">Securities (Assets) [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesAssetsMember" xml:lang="en-US">Servicing rights for government guaranteed loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesAssetsMember" xml:lang="en-US">Servicing rights for SBA/USDA loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SecuritiesAssetsMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SecuritiesAssetsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResidentialMortgageBackedSecuritiesMember" xlink:label="loc_2I0HHGGF8208_us-gaap_ResidentialMortgageBackedSecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_ResidentialMortgageBackedSecuritiesMember" xml:lang="en-US">Residential Mortgage Backed Securities [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_ResidentialMortgageBackedSecuritiesMember" xml:lang="en-US">Residential mortgage servicing rights</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_ResidentialMortgageBackedSecuritiesMember" xlink:to="lab_4K2JJIIH0420_us-gaap_ResidentialMortgageBackedSecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByLiabilityClassAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueByLiabilityClassAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueByLiabilityClassAxis" xml:lang="en-US">Fair Value by Liability Class [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueByLiabilityClassAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueByLiabilityClassAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xml:lang="en-US">Fair Value, Liabilities, Measured on Recurring Basis, Unobservable Input Reconciliation, by Liability Class [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DeferredCompensationPlanLiabilityMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DeferredCompensationPlanLiabilityMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredCompensationPlanLiabilityMember" xml:lang="en-US">Deferred Compensation Plan Liability [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredCompensationPlanLiabilityMember" xml:lang="en-US">Deferred compensation plan liability</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DeferredCompensationPlanLiabilityMember" xml:lang="en-US">Represents information of deferred compensation plan liability.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DeferredCompensationPlanLiabilityMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DeferredCompensationPlanLiabilityMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AssetsFairValueDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AssetsFairValueDisclosureAbstract" xml:lang="en-US">Assets, Fair Value Disclosure [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AssetsFairValueDisclosureAbstract" xml:lang="en-US">Assets:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AssetsFairValueDisclosureAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AssetsFairValueDisclosureAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_2I0HHGGF8208_us-gaap_AssetsFairValueDisclosure"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AssetsFairValueDisclosure" xml:lang="en-US">Assets, Fair Value Disclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AssetsFairValueDisclosure" xml:lang="en-US">Fair Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AssetsFairValueDisclosure" xml:lang="en-US">Assets, fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AssetsFairValueDisclosure" xml:lang="en-US">Assets, fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AssetsFairValueDisclosure" xlink:to="lab_4K2JJIIH0420_us-gaap_AssetsFairValueDisclosure"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosureAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LiabilitiesFairValueDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesFairValueDisclosureAbstract" xml:lang="en-US">Liabilities, Fair Value Disclosure [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesFairValueDisclosureAbstract" xml:lang="en-US">Liabilities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LiabilitiesFairValueDisclosureAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LiabilitiesFairValueDisclosureAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosure" xlink:label="loc_2I0HHGGF8208_us-gaap_LiabilitiesFairValueDisclosure"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LiabilitiesFairValueDisclosure" xml:lang="en-US">Liabilities, Fair Value Disclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LiabilitiesFairValueDisclosure" xml:lang="en-US">Liabilities, fair value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LiabilitiesFairValueDisclosure" xlink:to="lab_4K2JJIIH0420_us-gaap_LiabilitiesFairValueDisclosure"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TypeOfSecurityAxis" xlink:label="loc_I9G01G3G9932937HF776_ucbi_TypeOfSecurityAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TypeOfSecurityAxis" xml:lang="en-US">Type Of Security [Axis]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_TypeOfSecurityAxis" xml:lang="en-US">Represents information about security.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_TypeOfSecurityAxis" xlink:to="lab_K1I23I5I1154159JH998_ucbi_TypeOfSecurityAxis"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_TypeOfSecurityDomain" xlink:label="loc_2I0HHGGF8208_ucbi_TypeOfSecurityDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_TypeOfSecurityDomain" xml:lang="en-US">Type Of Security [Domain]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_TypeOfSecurityDomain" xml:lang="en-US">Represents different types of security.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_TypeOfSecurityDomain" xlink:to="lab_4K2JJIIH0420_ucbi_TypeOfSecurityDomain"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DerivativeAssetMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DerivativeAssetMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DerivativeAssetMember" xml:lang="en-US">Derivative Asset [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DerivativeAssetMember" xml:lang="en-US">Derivative assets - mortgage</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DerivativeAssetMember" xml:lang="en-US">Derivative Asset</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DerivativeAssetMember" xml:lang="en-US">Represents information of Derivative assets of the entity.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DerivativeAssetMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DerivativeAssetMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DerivativeLiabilityMember" xlink:label="loc_2I0HHGGF8208_ucbi_DerivativeLiabilityMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeLiabilityMember" xml:lang="en-US">Derivative Liability [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeLiabilityMember" xml:lang="en-US">Derivative liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeLiabilityMember" xml:lang="en-US">Derivative Liability</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeLiabilityMember" xml:lang="en-US">Represents information of the Derivative liability.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DerivativeLiabilityMember" xlink:to="lab_4K2JJIIH0420_ucbi_DerivativeLiabilityMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_ServicingRightsMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_ServicingRightsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingRightsMember" xml:lang="en-US">Servicing Rights Member</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingRightsMember" xml:lang="en-US">Servicing rights for government guaranteed loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingRightsMember" xml:lang="en-US">Servicing rights for SBA/USDA loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_ServicingRightsMember" xml:lang="en-US">Represents information of Servicing Rights.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_ServicingRightsMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_ServicingRightsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableforsaleSecuritiesMember" xlink:label="loc_2I0HHGGF8208_us-gaap_AvailableforsaleSecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableforsaleSecuritiesMember" xml:lang="en-US">Available-for-sale Securities [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_AvailableforsaleSecuritiesMember" xml:lang="en-US">Securities Available-for-Sale</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_AvailableforsaleSecuritiesMember" xlink:to="lab_4K2JJIIH0420_us-gaap_AvailableforsaleSecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xml:lang="en-US">Assets measured at fair value on recurring basis using significant unobservable inputs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xml:lang="en-US">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xml:lang="en-US">Balance at beginning of period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xml:lang="en-US">Balance at end of period</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xml:lang="en-US">Transfer from amortization method to fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xml:lang="en-US">Transfers between valuation levels, net</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xml:lang="en-US">Business combinations</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xml:lang="en-US">Business combinations</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues" xml:lang="en-US">Additions</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" xlink:label="loc_2I0HHGGF8208_ucbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" xml:lang="en-US">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales And Settlements</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" xml:lang="en-US">Sales and settlements</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" xml:lang="en-US">Amount of sale and settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" xml:lang="en-US">Sales and settlements</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" xlink:to="lab_4K2JJIIH0420_ucbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xml:lang="en-US">Other comprehensive income</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xml:lang="en-US">Negative mark to fair value</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xml:lang="en-US">Other comprehensive income</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xml:lang="en-US">Amounts included in earnings - fair value adjustments</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsAssetsQuantitativeInformationTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xml:lang="en-US">Fair Value Inputs, Assets, Quantitative Information [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsAssetsQuantitativeInformationTable"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DerivativeAssetsOtherMember" xlink:label="loc_2I0HHGGF8208_ucbi_DerivativeAssetsOtherMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeAssetsOtherMember" xml:lang="en-US">Derivative Assets Other [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeAssetsOtherMember" xml:lang="en-US">Derivative assets - other</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeAssetsOtherMember" xml:lang="en-US">Represents information about Derivative assets other.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DerivativeAssetsOtherMember" xlink:to="lab_4K2JJIIH0420_ucbi_DerivativeAssetsOtherMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DerivativeLiabilitiesRiskParticipationsMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_DerivativeLiabilitiesRiskParticipationsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DerivativeLiabilitiesRiskParticipationsMember" xml:lang="en-US">Derivative Liabilities Risk Participations [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_DerivativeLiabilitiesRiskParticipationsMember" xml:lang="en-US">Derivative liabilities - risk participations</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_DerivativeLiabilitiesRiskParticipationsMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_DerivativeLiabilitiesRiskParticipationsMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DerivativeLiabilityOtherMember" xlink:label="loc_2I0HHGGF8208_ucbi_DerivativeLiabilityOtherMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeLiabilityOtherMember" xml:lang="en-US">Derivative Liability Other [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeLiabilityOtherMember" xml:lang="en-US">Derivative liabilities - other</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DerivativeLiabilityOtherMember" xml:lang="en-US">Represents derivative liability other.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DerivativeLiabilityOtherMember" xlink:to="lab_4K2JJIIH0420_ucbi_DerivativeLiabilityOtherMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_WeightedAverageMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_WeightedAverageMember" xml:lang="en-US">Weighted Average [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_WeightedAverageMember" xml:lang="en-US">Weighted Average</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_WeightedAverageMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_WeightedAverageMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xml:lang="en-US">Fair Value Inputs, Assets, Quantitative Information [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsValuationTechniques" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementsValuationTechniques"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementsValuationTechniques" xml:lang="en-US">Fair Value Measurements, Valuation Techniques</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementsValuationTechniques" xml:lang="en-US">ValuationTechnique</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueMeasurementsValuationTechniques" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueMeasurementsValuationTechniques"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsSignificantAssumptions" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementsSignificantAssumptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsSignificantAssumptions" xml:lang="en-US">Fair Value Measurements, Significant Assumptions</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsSignificantAssumptions" xml:lang="en-US">Unobservable Inputs</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementsSignificantAssumptions" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsSignificantAssumptions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsDiscountRate" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsDiscountRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsDiscountRate" xml:lang="en-US">Fair Value Inputs, Discount Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsDiscountRate" xml:lang="en-US">Discount rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsDiscountRate" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsDiscountRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsPrepaymentRate" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueInputsPrepaymentRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueInputsPrepaymentRate" xml:lang="en-US">Fair Value Inputs, Prepayment Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueInputsPrepaymentRate" xml:lang="en-US">Prepayment Rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueInputsPrepaymentRate" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueInputsPrepaymentRate"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FairValueInputPullThroughRate" xlink:label="loc_I9G01G3G9932937HF776_ucbi_FairValueInputPullThroughRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FairValueInputPullThroughRate" xml:lang="en-US">Fair Value Input Pull Through Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FairValueInputPullThroughRate" xml:lang="en-US">Pull through rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_FairValueInputPullThroughRate" xml:lang="en-US">Represents fair value input Pull through rate.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_FairValueInputPullThroughRate" xlink:to="lab_K1I23I5I1154159JH998_ucbi_FairValueInputPullThroughRate"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FairValueInputsProbableExposureRate" xlink:label="loc_2I0HHGGF8208_ucbi_FairValueInputsProbableExposureRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueInputsProbableExposureRate" xml:lang="en-US">Fair Value Inputs Probable Exposure Rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueInputsProbableExposureRate" xml:lang="en-US">Probable exposure rate</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_FairValueInputsProbableExposureRate" xml:lang="en-US">Percentage of likelihood a loan will not be repaid and exposure rate, used as an input to measure fair value.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_FairValueInputsProbableExposureRate" xlink:to="lab_4K2JJIIH0420_ucbi_FairValueInputsProbableExposureRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsProbabilityOfDefault" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsProbabilityOfDefault"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsProbabilityOfDefault" xml:lang="en-US">Fair Value Inputs, Probability of Default</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsProbabilityOfDefault" xml:lang="en-US">Probability of default rate</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueInputsProbabilityOfDefault" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueInputsProbabilityOfDefault"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsNonrecurringMember" xlink:label="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementsNonrecurringMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsNonrecurringMember" xml:lang="en-US">Fair Value, Measurements, Nonrecurring [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsNonrecurringMember" xml:lang="en-US">Nonrecurring</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FairValueMeasurementsNonrecurringMember" xlink:to="lab_4K2JJIIH0420_us-gaap_FairValueMeasurementsNonrecurringMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosureNonrecurring" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_AssetsFairValueDisclosureNonrecurring"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AssetsFairValueDisclosureNonrecurring" xml:lang="en-US">Assets, Fair Value Disclosure, Nonrecurring</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AssetsFairValueDisclosureNonrecurring" xml:lang="en-US">Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_AssetsFairValueDisclosureNonrecurring" xml:lang="en-US">Loans, net, Fair Value</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_AssetsFairValueDisclosureNonrecurring" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_AssetsFairValueDisclosureNonrecurring"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:label="loc_2I0HHGGF8208_us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CarryingReportedAmountFairValueDisclosureMember" xml:lang="en-US">Reported Value Measurement [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_CarryingReportedAmountFairValueDisclosureMember" xml:lang="en-US">Carrying Amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:to="lab_4K2JJIIH0420_us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract" xml:lang="en-US">Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract" xml:lang="en-US">Assets:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansReceivableFairValueDisclosure" xlink:label="loc_2I0HHGGF8208_us-gaap_LoansReceivableFairValueDisclosure"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansReceivableFairValueDisclosure" xml:lang="en-US">Loans Receivable, Fair Value Disclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansReceivableFairValueDisclosure" xml:lang="en-US">Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_LoansReceivableFairValueDisclosure" xml:lang="en-US">Loans, net</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_LoansReceivableFairValueDisclosure" xlink:to="lab_4K2JJIIH0420_us-gaap_LoansReceivableFairValueDisclosure"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansHeldForSaleFairValueDisclosure" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LoansHeldForSaleFairValueDisclosure"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansHeldForSaleFairValueDisclosure" xml:lang="en-US">Loans Held-for-sale, Fair Value Disclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LoansHeldForSaleFairValueDisclosure" xml:lang="en-US">Loans held for sale</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LoansHeldForSaleFairValueDisclosure" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LoansHeldForSaleFairValueDisclosure"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract" xml:lang="en-US">Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract" xml:lang="en-US">Liabilities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepositsFairValueDisclosure" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DepositsFairValueDisclosure"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepositsFairValueDisclosure" xml:lang="en-US">Deposits Fair Value Disclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DepositsFairValueDisclosure" xml:lang="en-US">Deposits</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DepositsFairValueDisclosure" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DepositsFairValueDisclosure"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure" xlink:label="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure" xml:lang="en-US">Federal Home Loan Bank Borrowings Fair Value Disclosure</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure" xml:lang="en-US">Federal Home Loan Bank advances</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure" xlink:to="lab_4K2JJIIH0420_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_LongTermDebtFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_LongTermDebtFairValue" xml:lang="en-US">Long-term debt</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_LongTermDebtFairValue" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_LongTermDebtFairValue"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MortgageLoansHeldForSaleOutstandingPrincipalBalance" xlink:label="loc_2I0HHGGF8208_ucbi_MortgageLoansHeldForSaleOutstandingPrincipalBalance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_MortgageLoansHeldForSaleOutstandingPrincipalBalance" xml:lang="en-US">Mortgage Loans Held For Sale Outstanding Principal Balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_MortgageLoansHeldForSaleOutstandingPrincipalBalance" xml:lang="en-US">Mortgage loans held for sale, outstanding principal balance</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_MortgageLoansHeldForSaleOutstandingPrincipalBalance" xml:lang="en-US">Represents mortgage loans held for sale quantified by principal amount, the principle balance held at close of period.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_MortgageLoansHeldForSaleOutstandingPrincipalBalance" xlink:to="lab_4K2JJIIH0420_ucbi_MortgageLoansHeldForSaleOutstandingPrincipalBalance"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOptionChangesInFairValueGainLoss1" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_FairValueOptionChangesInFairValueGainLoss1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueOptionChangesInFairValueGainLoss1" xml:lang="en-US">Fair Value, Option, Changes in Fair Value, Gain (Loss)</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_FairValueOptionChangesInFairValueGainLoss1" xml:lang="en-US">Net gains from changes in fair value of loans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_FairValueOptionChangesInFairValueGainLoss1" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_FairValueOptionChangesInFairValueGainLoss1"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_PercentageOfWrittenDownInAppraisalValueOfNonaccrualImpairedLoans" xlink:label="loc_2I0HHGGF8208_ucbi_PercentageOfWrittenDownInAppraisalValueOfNonaccrualImpairedLoans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageOfWrittenDownInAppraisalValueOfNonaccrualImpairedLoans" xml:lang="en-US">Percentage of Written Down in Appraisal Value of Nonaccrual Impaired Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageOfWrittenDownInAppraisalValueOfNonaccrualImpairedLoans" xml:lang="en-US">Percentage of written down in appraisal value of nonaccrual impaired loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_PercentageOfWrittenDownInAppraisalValueOfNonaccrualImpairedLoans" xml:lang="en-US">This element represents percentage of written down in appraisal value of nonaccrual impaired loans.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_PercentageOfWrittenDownInAppraisalValueOfNonaccrualImpairedLoans" xlink:to="lab_4K2JJIIH0420_ucbi_PercentageOfWrittenDownInAppraisalValueOfNonaccrualImpairedLoans"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_MaximumRemainingMaturityOfFinancialInstrumentsHavingNoDefinedMaturity" xlink:label="loc_I9G01G3G9932937HF776_ucbi_MaximumRemainingMaturityOfFinancialInstrumentsHavingNoDefinedMaturity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MaximumRemainingMaturityOfFinancialInstrumentsHavingNoDefinedMaturity" xml:lang="en-US">Maximum Remaining Maturity of Financial Instruments Having No Defined Maturity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MaximumRemainingMaturityOfFinancialInstrumentsHavingNoDefinedMaturity" xml:lang="en-US">Maximum remaining maturity of financial instruments having no defined maturity</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_MaximumRemainingMaturityOfFinancialInstrumentsHavingNoDefinedMaturity" xml:lang="en-US">This element represents maximum remaining maturity period of financial instruments having no defined maturity in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_MaximumRemainingMaturityOfFinancialInstrumentsHavingNoDefinedMaturity" xlink:to="lab_K1I23I5I1154159JH998_ucbi_MaximumRemainingMaturityOfFinancialInstrumentsHavingNoDefinedMaturity"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedIncomeStatementTable" xlink:label="loc_2I0HHGGF8208_us-gaap_CondensedIncomeStatementTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CondensedIncomeStatementTable" xml:lang="en-US">Condensed Income Statement [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CondensedIncomeStatementTable" xlink:to="lab_4K2JJIIH0420_us-gaap_CondensedIncomeStatementTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedIncomeStatementsCaptionsLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CondensedIncomeStatementsCaptionsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CondensedIncomeStatementsCaptionsLineItems" xml:lang="en-US">Condensed Income Statements, Captions [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CondensedIncomeStatementsCaptionsLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CondensedIncomeStatementsCaptionsLineItems"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DividendsFromBank" xlink:label="loc_2I0HHGGF8208_ucbi_DividendsFromBank"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DividendsFromBank" xml:lang="en-US">Dividends From Bank</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DividendsFromBank" xml:lang="en-US">Dividends from bank</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DividendsFromBank" xml:lang="en-US">Represents amount related to Dividends from bank.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DividendsFromBank" xlink:to="lab_4K2JJIIH0420_ucbi_DividendsFromBank"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries" xml:lang="en-US">Cash Dividends Paid to Parent Company by Consolidated Subsidiaries</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries" xml:lang="en-US">Dividends from other subsidiaries</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_2I0HHGGF8208_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xml:lang="en-US">Net Income (Loss) Attributable to Noncontrolling Interest</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xml:lang="en-US">Equity in undistributed loss (earnings) of the subsidiaries</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xml:lang="en-US">Equity in undistributed earnings of the subsidiaries</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xml:lang="en-US">Equity in undistributed (loss) earnings of subsidiaries</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xml:lang="en-US">Equity in undistributed loss (earnings) of the subsidiaries</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:to="lab_4K2JJIIH0420_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedBalanceSheetStatementTable" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CondensedBalanceSheetStatementTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CondensedBalanceSheetStatementTable" xml:lang="en-US">Condensed Balance Sheet Statement [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CondensedBalanceSheetStatementTable" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CondensedBalanceSheetStatementTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems" xml:lang="en-US">Condensed Balance Sheet Statements, Captions [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_InvestmentsInBank" xlink:label="loc_I9G01G3G9932937HF776_ucbi_InvestmentsInBank"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_InvestmentsInBank" xml:lang="en-US">Investments In Bank</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_InvestmentsInBank" xml:lang="en-US">Investment in bank</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_InvestmentsInBank" xml:lang="en-US">Represents amount related to Investments In Bank.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_InvestmentsInBank" xlink:to="lab_K1I23I5I1154159JH998_ucbi_InvestmentsInBank"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" xlink:label="loc_2I0HHGGF8208_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" xml:lang="en-US">Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" xml:lang="en-US">Investment in other subsidiaries</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" xlink:to="lab_4K2JJIIH0420_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_OtherLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherLiabilities" xml:lang="en-US">Other Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherLiabilities" xml:lang="en-US">Other liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_OtherLiabilities" xml:lang="en-US">Accrued expenses and other liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_OtherLiabilities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_OtherLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedCashFlowStatementTable" xlink:label="loc_2I0HHGGF8208_us-gaap_CondensedCashFlowStatementTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_CondensedCashFlowStatementTable" xml:lang="en-US">Condensed Cash Flow Statement [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_CondensedCashFlowStatementTable" xlink:to="lab_4K2JJIIH0420_us-gaap_CondensedCashFlowStatementTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedCashFlowStatementsCaptionsLineItems" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_CondensedCashFlowStatementsCaptionsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_CondensedCashFlowStatementsCaptionsLineItems" xml:lang="en-US">Condensed Cash Flow Statements, Captions [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_CondensedCashFlowStatementsCaptionsLineItems" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_CondensedCashFlowStatementsCaptionsLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Operating activities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeBenefitsAndShareBasedCompensation" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_EmployeeBenefitsAndShareBasedCompensation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EmployeeBenefitsAndShareBasedCompensation" xml:lang="en-US">Employee Benefits and Share-based Compensation</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_EmployeeBenefitsAndShareBasedCompensation" xml:lang="en-US">Stock-based compensation</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_EmployeeBenefitsAndShareBasedCompensation" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_EmployeeBenefitsAndShareBasedCompensation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xml:lang="en-US">Increase (Decrease) in Other Operating Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xml:lang="en-US">Other assets</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xml:lang="en-US">Increase (Decrease) in Other Operating Liabilities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xml:lang="en-US">Other liabilities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US">Net cash provided by operating activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US">Net cash provided by (used) in operating activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US">Net cash provided by operating activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xml:lang="en-US">Investing activities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForProceedsFromProductiveAssets" xlink:label="loc_2I0HHGGF8208_us-gaap_PaymentsForProceedsFromProductiveAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsForProceedsFromProductiveAssets" xml:lang="en-US">Payments for (Proceeds from) Productive Assets</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_PaymentsForProceedsFromProductiveAssets" xml:lang="en-US">Purchases of premises and equipment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_PaymentsForProceedsFromProductiveAssets" xlink:to="lab_4K2JJIIH0420_us-gaap_PaymentsForProceedsFromProductiveAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInInvestingActivities" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInInvestingActivities" xml:lang="en-US">Net cash used in investing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInInvestingActivities" xml:lang="en-US">Net cash used in investing activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities [Abstract]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xml:lang="en-US">Financing activities:</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xml:lang="en-US">Financing activities:</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="lab_4K2JJIIH0420_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromStockPlans" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromStockPlans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromStockPlans" xml:lang="en-US">Proceeds from Stock Plans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromStockPlans" xml:lang="en-US">Proceeds from issuance of common stock for dividend reinvestment and employee benefit plans</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_ProceedsFromStockPlans" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_ProceedsFromStockPlans"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_CashDividendsOnSeriesHPreferredStock" xlink:label="loc_2I0HHGGF8208_ucbi_CashDividendsOnSeriesHPreferredStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_CashDividendsOnSeriesHPreferredStock" xml:lang="en-US">Cash Dividends On Series H Preferred Stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_CashDividendsOnSeriesHPreferredStock" xml:lang="en-US">Cash dividends on Series H preferred stock</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_CashDividendsOnSeriesHPreferredStock" xml:lang="en-US">This element represents amount of cash dividends on series H preferred stock.</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_4K2JJIIH0420_ucbi_CashDividendsOnSeriesHPreferredStock" xml:lang="en-US">Cash dividends on Series H preferred stock</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_CashDividendsOnSeriesHPreferredStock" xlink:to="lab_4K2JJIIH0420_ucbi_CashDividendsOnSeriesHPreferredStock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInFinancingActivities" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInFinancingActivities" xml:lang="en-US">Net cash (used in) provided by financing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInFinancingActivities" xml:lang="en-US">Net cash used in financing activities</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInFinancingActivities" xml:lang="en-US">Net cash provided by (used in) financing activities</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_2I0HHGGF8208_us-gaap_SubsequentEventTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SubsequentEventTable" xml:lang="en-US">Subsequent Event [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SubsequentEventTable" xlink:to="lab_4K2JJIIH0420_us-gaap_SubsequentEventTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SubsequentEventTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SubsequentEventTypeAxis" xml:lang="en-US">Subsequent Event Type [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SubsequentEventTypeAxis" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SubsequentEventTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_2I0HHGGF8208_us-gaap_SubsequentEventTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SubsequentEventTypeDomain" xml:lang="en-US">Subsequent Event Type [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SubsequentEventTypeDomain" xlink:to="lab_4K2JJIIH0420_us-gaap_SubsequentEventTypeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_SubsequentEventMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SubsequentEventMember" xml:lang="en-US">Subsequent Event [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_SubsequentEventMember" xml:lang="en-US">Subsequent Event</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_SubsequentEventMember" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_SubsequentEventMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_NlfcHoldingsCorpMember" xlink:label="loc_2I0HHGGF8208_ucbi_NlfcHoldingsCorpMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_NlfcHoldingsCorpMember" xml:lang="en-US">Nlfc Holdings Corp [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_NlfcHoldingsCorpMember" xml:lang="en-US">NLFC Holdings Corp. ("NLFC")</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_NlfcHoldingsCorpMember" xml:lang="en-US">Represents information about Nlfc Holdings Corp.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_NlfcHoldingsCorpMember" xlink:to="lab_4K2JJIIH0420_ucbi_NlfcHoldingsCorpMember"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_NavitasCreditCorpMember" xlink:label="loc_I9G01G3G9932937HF776_ucbi_NavitasCreditCorpMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NavitasCreditCorpMember" xml:lang="en-US">Navitas Credit Corp [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NavitasCreditCorpMember" xml:lang="en-US">Navitas Credit Corp ("Navitas")</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_NavitasCreditCorpMember" xml:lang="en-US">Represents information about Navitas Credit Corp a legal entity.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_NavitasCreditCorpMember" xlink:to="lab_K1I23I5I1154159JH998_ucbi_NavitasCreditCorpMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_2I0HHGGF8208_us-gaap_SubsequentEventLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_SubsequentEventLineItems" xml:lang="en-US">Subsequent Event [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_SubsequentEventLineItems" xlink:to="lab_4K2JJIIH0420_us-gaap_SubsequentEventLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentFrequencyOfPeriodicPayment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xml:lang="en-US">Debt Instrument, Frequency of Periodic Payment</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xml:lang="en-US">Frequency of periodic payment</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DebtInstrumentFrequencyOfPeriodicPayment"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_DebtInstrumentCallPeriod" xlink:label="loc_2I0HHGGF8208_ucbi_DebtInstrumentCallPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_DebtInstrumentCallPeriod" xml:lang="en-US">Debt Instrument Call Period</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_DebtInstrumentCallPeriod" xml:lang="en-US">Call period for subordinated notes</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_DebtInstrumentCallPeriod" xml:lang="en-US">Represents the period which the issuer can call the outstanding debt instrument for repayment or conversion to equity.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_DebtInstrumentCallPeriod" xlink:to="lab_4K2JJIIH0420_ucbi_DebtInstrumentCallPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsPayableDateDeclaredDayMonthAndYear" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DividendsPayableDateDeclaredDayMonthAndYear"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DividendsPayableDateDeclaredDayMonthAndYear" xml:lang="en-US">Dividends Payable, Date Declared</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DividendsPayableDateDeclaredDayMonthAndYear" xml:lang="en-US">Date of dividends declared</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DividendsPayableDateDeclaredDayMonthAndYear" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DividendsPayableDateDeclaredDayMonthAndYear"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsPayableAmountPerShare" xlink:label="loc_2I0HHGGF8208_us-gaap_DividendsPayableAmountPerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DividendsPayableAmountPerShare" xml:lang="en-US">Dividends Payable, Amount Per Share</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DividendsPayableAmountPerShare" xml:lang="en-US">Amount of dividends payable per common share</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DividendsPayableAmountPerShare" xlink:to="lab_4K2JJIIH0420_us-gaap_DividendsPayableAmountPerShare"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendPayableDateToBePaidDayMonthAndYear" xlink:label="loc_I9G01G3G9932937HF776_us-gaap_DividendPayableDateToBePaidDayMonthAndYear"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DividendPayableDateToBePaidDayMonthAndYear" xml:lang="en-US">Dividends Payable, Date to be Paid</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_us-gaap_DividendPayableDateToBePaidDayMonthAndYear" xml:lang="en-US">Date of dividends to be paid on</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_us-gaap_DividendPayableDateToBePaidDayMonthAndYear" xlink:to="lab_K1I23I5I1154159JH998_us-gaap_DividendPayableDateToBePaidDayMonthAndYear"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsPayableDateOfRecordDayMonthAndYear" xlink:label="loc_2I0HHGGF8208_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear" xml:lang="en-US">Dividends Payable, Date of Record</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear" xml:lang="en-US">Date of record</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear" xlink:to="lab_4K2JJIIH0420_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans" xlink:label="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans" xml:lang="en-US">Loans acquired</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans" xml:lang="en-US">Represents amount of loans acquired as on reporting date.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_I9G01G3G9932937HF776_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans" xlink:to="lab_K1I23I5I1154159JH998_ucbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoans"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_PaymentsToPurchaseLoans" xlink:label="loc_2I0HHGGF8208_ucbi_PaymentsToPurchaseLoans"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_4K2JJIIH0420_ucbi_PaymentsToPurchaseLoans" xml:lang="en-US">Payments To Purchase Loans</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_4K2JJIIH0420_ucbi_PaymentsToPurchaseLoans" xml:lang="en-US">Amount of loans purchased in a transaction separate from the business combination</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_4K2JJIIH0420_ucbi_PaymentsToPurchaseLoans" xml:lang="en-US">The aggregate cash outflow used to purchase all loans in a transaction separate from the business combination.</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_2I0HHGGF8208_ucbi_PaymentsToPurchaseLoans" xlink:to="lab_4K2JJIIH0420_ucbi_PaymentsToPurchaseLoans"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAcquiredFromAcquisition" xlink:label="loc_us-gaap_CashAcquiredFromAcquisition"/>
<label xlink:type="resource" xlink:label="lab_us-gaap_CashAcquiredFromAcquisition" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Cash Acquired from Acquisition</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_CashAcquiredFromAcquisition" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Cash</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_CashAcquiredFromAcquisition" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Net cash received for acquisitions</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_CashAcquiredFromAcquisition" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Net cash received for acquisitions</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_CashAcquiredFromAcquisition" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xml:lang="en-US">Payment for acquisition</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAcquiredFromAcquisition" xlink:to="lab_us-gaap_CashAcquiredFromAcquisition"/>




<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_FundsPaidToFdicUnderLossSharingAgreements" xlink:label="loc_ucbi_FundsPaidToFdicUnderLossSharingAgreements"/>
<label xlink:type="resource" xlink:label="lab_ucbi_FundsPaidToFdicUnderLossSharingAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Funds Paid To Fdic Under Loss Sharing Agreements</label>
<label xlink:type="resource" xlink:label="lab_ucbi_FundsPaidToFdicUnderLossSharingAgreements" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">Represents the amount related to funds paid to FDIC under loss sharing agreements.</label>
<label xlink:type="resource" xlink:label="lab_ucbi_FundsPaidToFdicUnderLossSharingAgreements" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Funds paid to FDIC under loss sharing agreements</label>
<label xlink:type="resource" xlink:label="lab_ucbi_FundsPaidToFdicUnderLossSharingAgreements" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Funds paid to FDIC under loss sharing agreements</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ucbi_FundsPaidToFdicUnderLossSharingAgreements" xlink:to="lab_ucbi_FundsPaidToFdicUnderLossSharingAgreements"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount"/>
<label xlink:type="resource" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Debt Instrument, Unamortized Discount, Total</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Less discount</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Less discount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentUnamortizedDiscount" xlink:to="lab_us-gaap_DebtInstrumentUnamortizedDiscount"/>










<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_AdvancesFromFederalHomeLoanBanksPrincipleOutstanding" xlink:label="loc_ucbi_AdvancesFromFederalHomeLoanBanksPrincipleOutstanding"/>
<label xlink:type="resource" xlink:label="lab_ucbi_AdvancesFromFederalHomeLoanBanksPrincipleOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Advances From Federal Home Loan Banks Principle Outstanding</label>
<label xlink:type="resource" xlink:label="lab_ucbi_AdvancesFromFederalHomeLoanBanksPrincipleOutstanding" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">Represents the amount of outstanding principle advances from the Federal Home Loan Bank (FHLB).</label>
<label xlink:type="resource" xlink:label="lab_ucbi_AdvancesFromFederalHomeLoanBanksPrincipleOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Total principal outstanding</label>
<label xlink:type="resource" xlink:label="lab_ucbi_AdvancesFromFederalHomeLoanBanksPrincipleOutstanding" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total principal outstanding</label>
<label xlink:type="resource" xlink:label="lab_ucbi_AdvancesFromFederalHomeLoanBanksPrincipleOutstanding" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xml:lang="en-US">Total principal outstanding</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ucbi_AdvancesFromFederalHomeLoanBanksPrincipleOutstanding" xlink:to="lab_ucbi_AdvancesFromFederalHomeLoanBanksPrincipleOutstanding"/>
<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesBeforeTax" xlink:label="loc_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesBeforeTax"/>
<label xlink:type="resource" xlink:label="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Other Comprehensive Income Loss Amortization Of Losses Included In Net Income On Terminated Derivative Financial Instruments Which Previously Accounted For As Cash Flow Hedges Before Tax</label>
<label xlink:type="resource" xlink:label="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Amortization of losses included in net income on terminated derivative financial instruments that were previously accounted for as cash flow hedges, Before-tax Amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesBeforeTax" xlink:to="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesBeforeTax"/><label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesBeforeTax" xml:lang="en-US">Represents the amount before tax related to amortization of losses included in net income on terminated derivative financial instruments that were previously accounted for as cash flow hedges.</label>
























<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesTax" xlink:label="loc_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesTax_1"/>
<label xlink:type="resource" xlink:label="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesTax" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Other Comprehensive Income Loss Amortization Of Losses Included In Net Income On Terminated Derivative Financial Instruments Which Previously Accounted For As Cash Flow Hedges Tax</label>
<label xlink:type="resource" xlink:label="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesTax" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Amortization of losses included in net income on terminated derivative financial instruments that were previously accounted for as cash flow hedges, Tax (Expense) Benefit</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesTax_1" xlink:to="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesTax"/><label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesTax" xml:lang="en-US">Represents the amount of tax expense (benefit) related to amortization of losses included in net income on terminated derivative financial instruments that were previously accounted for as cash flow hedges.</label>

<loc xlink:type="locator" xlink:href="ucbi-20171231.xsd#ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesNetOfTax" xlink:label="loc_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesNetOfTax_1"/>
<label xlink:type="resource" xlink:label="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Other Comprehensive Income Loss Amortization Of Losses Included In Net Income On Terminated Derivative Financial Instruments Which Previously Accounted For As Cash Flow Hedges Net Of Tax</label>
<label xlink:type="resource" xlink:label="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Amortization of losses included in net income on terminated derivative financial instruments that were previously accounted for as cash flow hedges, Net of Tax Amount</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesNetOfTax_1" xlink:to="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesNetOfTax"/><label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_ucbi_OtherComprehensiveIncomeLossAmortizationOfLossesIncludedInNetIncomeOnTerminatedDerivativeFinancialInstrumentsWhichPreviouslyAccountedForAsCashFlowHedgesNetOfTax" xml:lang="en-US">Represents the amount after tax related to amortization of losses included in net income on terminated derivative financial instruments that were previously accounted for as cash flow hedges.</label>

<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInDiscountRate" xlink:label="loc_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInDiscountRate"/>
<label xlink:type="resource" xlink:label="lab_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInDiscountRate" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Discount Rate</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInDiscountRate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">100 bps adverse change</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInDiscountRate" xlink:to="lab_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInDiscountRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredOtherTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredOtherTaxExpenseBenefit"/>
<label xlink:type="resource" xlink:label="lab_us-gaap_DeferredOtherTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Deferred Other Tax Expense (Benefit)</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_DeferredOtherTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Deferred</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredOtherTaxExpenseBenefit" xlink:to="lab_us-gaap_DeferredOtherTaxExpenseBenefit"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate"/>
<label xlink:type="resource" xlink:label="lab_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Unrecognized Tax Benefits that Would Impact Effective Tax Rate</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Tax benefit related to uncertain tax positions that increases income from continuing operations</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Increase income from continuing operations</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:to="lab_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsMember" xlink:label="loc_us-gaap_CashAndCashEquivalentsMember"/>
<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Cash and Cash Equivalents [Member]</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Cash and cash equivalents</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsMember" xlink:to="lab_us-gaap_CashAndCashEquivalentsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInDiscountRate" xlink:label="loc_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInDiscountRate"/>
<label xlink:type="resource" xlink:label="lab_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInDiscountRate" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Discount Rate</label>
<label xlink:type="resource" xlink:label="lab_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInDiscountRate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">200 bps adverse change</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInDiscountRate" xlink:to="lab_us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInDiscountRate"/>
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