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<link:definition>022 - Disclosure - Assets and Liabilities Measured at Fair Value</link:definition>
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<link:definition>025 - Disclosure - Long-term Debt</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>027 - Disclosure - Acquisitions (Tables)</link:definition>
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<link:definition>028 - Disclosure - Balance Sheet Offsetting and Repurchase Agreements Accounted for as Secured Borrowings (Tables)</link:definition>
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<link:definition>029 - Disclosure - Securities (Tables)</link:definition>
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<link:definition>031 - Disclosure - Reclassifications Out of Accumulated Other Comprehensive Income (Tables)</link:definition>
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<link:definition>041 - Disclosure - Acquisitions (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>043 - Disclosure - Acquisitions (Details 2)</link:definition>
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<link:definition>044 - Disclosure - Acquisitions (Detail Textuals)</link:definition>
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<link:definition>045 - Disclosure - Balance Sheet Offsetting and Repurchase Agreements Accounted for as Secured Borrowings - Summary of amounts outstanding under master netting agreements (Details)</link:definition>
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<link:definition>046 - Disclosure - Balance Sheet Offsetting and Repurchase Agreements Accounted for as Secured Borrowings (Details 1)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>047 - Disclosure - Balance Sheet Offsetting and Repurchase Agreements Accounted for as Secured Borrowings (Details Textuals)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>048 - Disclosure - Securities - Amortized cost, gross unrealized gains and losses and fair value of securities held to maturity (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>049 - Disclosure - Securities - Cost basis, unrealized gains and losses, and fair value of securities available for sale (Details 1)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://ucbi.com/role/SecuritiesSummaryOfHeldToMaturitySecuritiesInUnrealizedLossPositionDetails2" id="SecuritiesSummaryOfHeldToMaturitySecuritiesInUnrealizedLossPositionDetails2">
<link:definition>050 - Disclosure - Securities - Summary of held to maturity securities in unrealized loss position (Details 2)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>051 - Disclosure - Securities - Summary of available for sale securities in unrealized loss position (Details 3)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>052 - Disclosure - Securities - Summary of securities sales activity (Details 4)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>053 - Disclosure - Securities - Amortized cost and fair value of held to maturity and available for sale securities (Details 5)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>054 - Disclosure - Securities (Detail Textuals)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>055 - Disclosure - Loans and Leases and Allowance for Credit Losses - Major classifications of loans (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>056 - Disclosure - Loans and Leases and Allowance for Credit Losses - Changes in the value of the accretable yield for acquired loans (Details 1)</link:definition>
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<link:definition>063 - Disclosure - Loans and Leases and Allowance for Credit Losses - Average balances of impaired loans and income recognized on impaired loans (Details 8)</link:definition>
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<link:definition>082 - Disclosure - Assets and Liabilities Measured at Fair Value - Assets and liabilities measured at fair value on recurring basis (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
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<link:usedOn>link:presentationLink</link:usedOn>
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<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:usedOn>link:definitionLink</link:usedOn>
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<element name="OtherComprehensiveIncomeLossUnrealizedHoldingGainLossOnSecuritiesNetOfReclassificationAndValuationAllowanceArisingDuringPeriodNetOfTax" id="ucbi_OtherComprehensiveIncomeLossUnrealizedHoldingGainLossOnSecuritiesNetOfReclassificationAndValuationAllowanceArisingDuringPeriodNetOfTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherComprehensiveIncomeLossReclassificationAdjustmentOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesDuringPeriodBeforeTax" id="ucbi_OtherComprehensiveIncomeLossReclassificationAdjustmentOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesDuringPeriodBeforeTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherComprehensiveIncomeLossReclassificationAdjustmentOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesTax" id="ucbi_OtherComprehensiveIncomeLossReclassificationAdjustmentOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherComprehensiveIncomeLossReclassificationAdjustmentOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesNetOfTax" id="ucbi_OtherComprehensiveIncomeLossReclassificationAdjustmentOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesNetOfTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludedInNetPeriodicPensionCostForDefinedBenefitPensionPlanBeforeTaxAmount" id="ucbi_OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludedInNetPeriodicPensionCostForDefinedBenefitPensionPlanBeforeTaxAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludedInNetPeriodicPensionCostForDefinedBenefitPensionPlanTaxExpenseBenefit" id="ucbi_OtherComprehensiveIncomeLossAmortizationOfPriorServiceCostAndActuarialLossesIncludedInNetPeriodicPensionCostForDefinedBenefitPensionPlanTaxExpenseBenefit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="ComprehensiveIncomeLossBeforeTax" id="ucbi_ComprehensiveIncomeLossBeforeTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ComprehensiveIncomeLossTax" id="ucbi_ComprehensiveIncomeLossTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="CommonStocksIssuable" id="ucbi_CommonStocksIssuable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CommonStockIssuableShares" id="ucbi_CommonStockIssuableShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CommonStockIssuableMember" id="ucbi_CommonStockIssuableMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue" id="ucbi_CommonStockIssuedToDividendReinvestmentPlanAndEmployeeBenefitPlansValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DeferredCompensationPlanNetIncludingDividendEquivalents" id="ucbi_DeferredCompensationPlanNetIncludingDividendEquivalents" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="StockIssuedDuringPeriodSharesDividendReinvestmentPlanAndEmployeeBenefitPlans" id="ucbi_StockIssuedDuringPeriodSharesDividendReinvestmentPlanAndEmployeeBenefitPlans" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="VestingOfRestrictedStockSharesDeferred" id="ucbi_VestingOfRestrictedStockSharesDeferred" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NumberOfSharesIssuedFromDeferredCompensationPlan" id="ucbi_NumberOfSharesIssuedFromDeferredCompensationPlan" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="GainsFromSalesOfGovernmentGuaranteedLoans" id="ucbi_GainsFromSalesOfGovernmentGuaranteedLoans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherAssetsAndAccruedInterestReceivable" id="ucbi_OtherAssetsAndAccruedInterestReceivable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="ProceedsFromIssuanceOfCommonStockForDividendReinvestmentAndEmployeeBenefitPlans" id="ucbi_ProceedsFromIssuanceOfCommonStockForDividendReinvestmentAndEmployeeBenefitPlans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="UnsettledPurchasesOfSecuritiesAvailableForSale" id="ucbi_UnsettledPurchasesOfSecuritiesAvailableForSale" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="UnsettledGovernmentGuaranteedLoanPurchases" id="ucbi_UnsettledGovernmentGuaranteedLoanPurchases" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="UnsettledGovernmentGuaranteedLoanSales" id="ucbi_UnsettledGovernmentGuaranteedLoanSales" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="AcquisitionsAbstract" id="ucbi_AcquisitionsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="TwoThousandTwentySevenSeniorDebenturesMember" id="ucbi_TwoThousandTwentySevenSeniorDebenturesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="TwoThousandTwentyEightSubordinatedDebenturesMember" id="ucbi_TwoThousandTwentyEightSubordinatedDebenturesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedAxis" id="ucbi_FairValueOfPurchasedAssetsAndAssumedLiabilitiesRecordedAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
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<element name="AcquiredLoanPortfolioDomain" id="ucbi_AcquiredLoanPortfolioDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="FourOaksBankAndTrustCompanyMember" id="ucbi_FourOaksBankAndTrustCompanyMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>




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<element name="RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetAssetsOfFinancialInstruments" id="ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetAssetsOfFinancialInstruments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetAssetsOfCollateralReceived" id="ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetAssetsOfCollateralReceived" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfFinancialInstruments" id="ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfFinancialInstruments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfCollateralPledged" id="ucbi_RepurchaseAndReverseRepurchaseAgreementsGrossAmountsNotOffSetInBalanceSheetLiabilitiesOfCollateralPledged" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="WeightedAverageInterestRateOfReverseRepurchaseAgreementsLiabilities" id="ucbi_WeightedAverageInterestRateOfReverseRepurchaseAgreementsLiabilities" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="OwnerOccupiedCommercialRealEstateMember" id="ucbi_OwnerOccupiedCommercialRealEstateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="EquipmentFinancingMember" id="ucbi_EquipmentFinancingMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ChangesInExpectedCashFlowsThatDoNotAffectNonaccretableDifference" id="ucbi_ChangesInExpectedCashFlowsThatDoNotAffectNonaccretableDifference" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="EstimatedResidualValueOfLeasedEquipment" id="ucbi_EstimatedResidualValueOfLeasedEquipment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="RiskCategoryOfLoansByClassOfLoansAbstract" id="ucbi_RiskCategoryOfLoansByClassOfLoansAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="LoansAndLeasesReceivableExcludingPurchasedCreditImpairedLoans" id="ucbi_LoansAndLeasesReceivableExcludingPurchasedCreditImpairedLoans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="MinimumAmountOfLoanEvaluatedForImpairment" id="ucbi_MinimumAmountOfLoanEvaluatedForImpairment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SpecificReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings" id="ucbi_SpecificReservesAllocatedToCustomersWhoseLoanTermsModifiedInTroubledDebtRestructurings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="ReclassificationOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesMember" id="ucbi_ReclassificationOfDisproportionateTaxEffectRelatedToTerminatedCashFlowHedgesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SalariesAndEmployeeBenefitsExpenseMember" id="ucbi_SalariesAndEmployeeBenefitsExpenseMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="AmortizationOfLossesOnDesignatedPositionsFederalHomeLoanBankAdvancesInterestExpense" id="ucbi_AmortizationOfLossesOnDesignatedPositionsFederalHomeLoanBankAdvancesInterestExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="EmployeesMember" id="ucbi_EmployeesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BrokeredCertificateOfDepositMember" id="ucbi_BrokeredCertificateOfDepositMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CustomerSwapPositionMember" id="ucbi_CustomerSwapPositionMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DealerOffsetToCustomerSwapPositionMember" id="ucbi_DealerOffsetToCustomerSwapPositionMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RiskParticipationsMember" id="ucbi_RiskParticipationsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="MortgageBankingLoanCommitmentMember" id="ucbi_MortgageBankingLoanCommitmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="MortgageBankingForwardSalesCommitmentMember" id="ucbi_MortgageBankingForwardSalesCommitmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BifurcatedEmbeddedDerivativeMember" id="ucbi_BifurcatedEmbeddedDerivativeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>

<element name="DealerOffsetsToBifurcatedEmbeddedDerivativesMember" id="ucbi_DealerOffsetsToBifurcatedEmbeddedDerivativesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DeDesignatedCashFlowHedgeMember" id="ucbi_DeDesignatedCashFlowHedgeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CustomerDerivativesAndDealerOffsetsMember" id="ucbi_CustomerDerivativesAndDealerOffsetsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="BifurcatedEmbeddedDerivativesAndDealerOffsetsMember" id="ucbi_BifurcatedEmbeddedDerivativesAndDealerOffsetsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="MortgageBankingDerivativesMember" id="ucbi_MortgageBankingDerivativesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherFeeRevenueMember" id="ucbi_OtherFeeRevenueMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="MortgageLoanRevenueMember" id="ucbi_MortgageLoanRevenueMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PayFixedReceiveVariableFairValueHedgeMember" id="ucbi_PayFixedReceiveVariableFairValueHedgeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RestrictedStockAndRestrictedStockUnitMember" id="ucbi_RestrictedStockAndRestrictedStockUnitMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="OtherOperatingExpenseForRestrictedStockUnitsGranted" id="ucbi_OtherOperatingExpenseForRestrictedStockUnitsGranted" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CommonStockIssuedAndIssuableAndPreferredStockIssuedAbstract" id="ucbi_CommonStockIssuedAndIssuableAndPreferredStockIssuedAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CommonStockIssuableSharesUnderDeferredCompensationPlan" id="ucbi_CommonStockIssuableSharesUnderDeferredCompensationPlan" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DeferredTaxAssetsTaxCreditCarryforwardsStateIncomeTax" id="ucbi_DeferredTaxAssetsTaxCreditCarryforwardsStateIncomeTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DeferredCompensationPlanLiabilityMember" id="ucbi_DeferredCompensationPlanLiabilityMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="MortgageLoansHeldForSaleMember" id="ucbi_MortgageLoansHeldForSaleMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DeferredCompensationPlanAssetsMember" id="ucbi_DeferredCompensationPlanAssetsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TypeOfSecurityAxis" id="ucbi_TypeOfSecurityAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
<element name="TypeOfSecurityDomain" id="ucbi_TypeOfSecurityDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DerivativeAssetMember" id="ucbi_DerivativeAssetMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DerivativeLiabilityMember" id="ucbi_DerivativeLiabilityMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SbaServicingRightsMember" id="ucbi_SbaServicingRightsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" id="ucbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DerivativeAssetsOtherMember" id="ucbi_DerivativeAssetsOtherMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DerivativeLiabilitiesRiskParticipationsMember" id="ucbi_DerivativeLiabilitiesRiskParticipationsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="FairValueInputPullThroughRate" id="ucbi_FairValueInputPullThroughRate" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="FairValueInputsProbableExposureRate" id="ucbi_FairValueInputsProbableExposureRate" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="MortgageLoansHeldForSaleOutstandingPrincipalBalance" id="ucbi_MortgageLoansHeldForSaleOutstandingPrincipalBalance" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="PercentageOfWrittenDownInAppraisalValueOfNonaccrualImpairedLoans" id="ucbi_PercentageOfWrittenDownInAppraisalValueOfNonaccrualImpairedLoans" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="MaximumRemainingMaturityOfFinancialInstrumentsHavingNoDefinedMaturity" id="ucbi_MaximumRemainingMaturityOfFinancialInstrumentsHavingNoDefinedMaturity" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="CommitmentForAdditionalFund" id="ucbi_CommitmentForAdditionalFund" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NavitasEquipmentReceivablesLlc2015-1ClassBNotesMember" id="ucbi_NavitasEquipmentReceivablesLlc2015-1ClassBNotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NavitasEquipmentReceivablesLlc2015-1ClassCNotesMember" id="ucbi_NavitasEquipmentReceivablesLlc2015-1ClassCNotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NavitasEquipmentReceivablesLlc2015-1ClassDNotesMember" id="ucbi_NavitasEquipmentReceivablesLlc2015-1ClassDNotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NavitasEquipmentReceivablesLlc2016-1ClassA2NotesMember" id="ucbi_NavitasEquipmentReceivablesLlc2016-1ClassA2NotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NavitasEquipmentReceivablesLlc2016-1ClassBNotesMember" id="ucbi_NavitasEquipmentReceivablesLlc2016-1ClassBNotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NavitasEquipmentReceivablesLlc2016-1ClassCNotesMember" id="ucbi_NavitasEquipmentReceivablesLlc2016-1ClassCNotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="NavitasEquipmentReceivablesLlc2016-1ClassDNotesMember" id="ucbi_NavitasEquipmentReceivablesLlc2016-1ClassDNotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SecuritizedNotesPayableMember" id="ucbi_SecuritizedNotesPayableMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SeniorDebenturesMember" id="ucbi_SeniorDebenturesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TwoThousandTwentyFiveSubordinatedDebenturesMember" id="ucbi_TwoThousandTwentyFiveSubordinatedDebenturesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SubordinatedDebenturesMember" id="ucbi_SubordinatedDebenturesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SouthernBancorpCapitalTrustOneMember" id="ucbi_SouthernBancorpCapitalTrustOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="UnitedCommunityStatutoryTrustThreeMember" id="ucbi_UnitedCommunityStatutoryTrustThreeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TidelandsStatutoryTrustOneMember" id="ucbi_TidelandsStatutoryTrustOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TidelandsStatutoryTrustTwoMember" id="ucbi_TidelandsStatutoryTrustTwoMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TrustPreferredSecuritiesMember" id="ucbi_TrustPreferredSecuritiesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DebtInstrumentIssueYear" id="ucbi_DebtInstrumentIssueYear" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DebtInstrumentsMaturityYear" id="ucbi_DebtInstrumentsMaturityYear" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="DebtInstrumentEarliestCallYear" id="ucbi_DebtInstrumentEarliestCallYear" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>






</schema>
