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  <xsd:element id="rbb_DividendIncomeOnFederalHomeLoanBankStock" name="DividendIncomeOnFederalHomeLoanBankStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="rbb_ExecutiveOfficersDirectorsAndTheirRelatedInterestsMember" name="ExecutiveOfficersDirectorsAndTheirRelatedInterestsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="rbb_FederalHomeLoanBankAdvancesTermMember" name="FederalHomeLoanBankAdvancesTermMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_FederalHomeLoanBankOfSanFranciscoSecuredLineOfCreditMember" name="FederalHomeLoanBankOfSanFranciscoSecuredLineOfCreditMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="rbb_FederalHomeLoanBankSecuredLineOfCreditMember" name="FederalHomeLoanBankSecuredLineOfCreditMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="rbb_FeesAndServiceChargesOnDepositAccountsMember" name="FeesAndServiceChargesOnDepositAccountsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_FinancialAsset30To89DaysPastDueMember" name="FinancialAsset30To89DaysPastDueMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" name="FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="rbb_FirstAmericanInternationalStatutoryTrustI1Member" name="FirstAmericanInternationalStatutoryTrustI1Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_ForwardMortgageLoanSaleContractsMember" name="ForwardMortgageLoanSaleContractsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_FourPercentFixedToFloatingRateSubordinatedDebenturesDueAprilFirstTwoThousandThirtyOneMember" name="FourPercentFixedToFloatingRateSubordinatedDebenturesDueAprilFirstTwoThousandThirtyOneMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_GainsLossesOnSalesAndTransferOfOtherRealEstate" name="GainsLossesOnSalesAndTransferOfOtherRealEstate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_HeldForInvestmentLoansMember" name="HeldForInvestmentLoansMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_IcsMember" name="IcsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_IncreaseDecreaseInCashSurrenderValueOfLifeInsurance" name="IncreaseDecreaseInCashSurrenderValueOfLifeInsurance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_IncreaseDecreaseInDemandDepositsAndSavingsAccounts" name="IncreaseDecreaseInDemandDepositsAndSavingsAccounts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_IncreaseInShorttermAdvancesFromFederalHomeLoanBank" name="IncreaseInShorttermAdvancesFromFederalHomeLoanBank" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_InsuranceAndRegulatoryAssessments" name="InsuranceAndRegulatoryAssessments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_InterestAndDividendIncomeOperatingAndNonoperating" name="InterestAndDividendIncomeOperatingAndNonoperating" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_InterestOnOtherBorrowedFunds" name="InterestOnOtherBorrowedFunds" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_InterestPayableFairValueDisclosure" name="InterestPayableFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_InterestReceivableFairValueDisclosure" name="InterestReceivableFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_InterestearningTimeDepositsInOtherFinancialInstitutions" name="InterestearningTimeDepositsInOtherFinancialInstitutions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_LegalAndProfessionalFeesAndFeesReversal" name="LegalAndProfessionalFeesAndFeesReversal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_LoanServicingFeesNetOfAmortization" name="LoanServicingFeesNetOfAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_LoanServicingTextBlock" name="LoanServicingTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_LoansHeldForInvestmentAndHeldForSaleGross" name="LoansHeldForInvestmentAndHeldForSaleGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_LoansReceivableInterest" name="LoansReceivableInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_LoansServicedForOthers" name="LoansServicedForOthers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="rbb_MeasurementInputAdjustmentMember" name="MeasurementInputAdjustmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_MortgageAndSmallBusinessAdministrationLoansServicedForOthersTableTextBlock" name="MortgageAndSmallBusinessAdministrationLoansServicedForOthersTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_MunicipalSecuritiesMember" name="MunicipalSecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_NetAccretionOfSecuritiesLoansDepositsAndOther" name="NetAccretionOfSecuritiesLoansDepositsAndOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element id="rbb_NumberOfBranches" name="NumberOfBranches" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="rbb_O2026Q3DividendsMember" name="O2026Q3DividendsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_OtherFeesMember" name="OtherFeesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_OtherFinancialInstitutionsMember" name="OtherFinancialInstitutionsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_OtherLoansMember" name="OtherLoansMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_OtherMember" name="OtherMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_OtherRealEstateOwnedMember" name="OtherRealEstateOwnedMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_OtherServiceIncomeMember" name="OtherServiceIncomeMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_PGBHTrustMember" name="PGBHTrustMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_PGBHoldingsIncAndBankingSubsidiaryPacificGlobalBankMember" name="PGBHoldingsIncAndBankingSubsidiaryPacificGlobalBankMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_PaymentsForProceedsFromLoansAndLeasesExcludingLoansHeldForInvestment" name="PaymentsForProceedsFromLoansAndLeasesExcludingLoansHeldForInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_PaymentsToAcquireProceedsFromOtherInvestments" name="PaymentsToAcquireProceedsFromOtherInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_PerformancebasedRestrictedStockUnitsMember" name="PerformancebasedRestrictedStockUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_PolicyTable" name="PolicyTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_PrincipalOfficersDirectorsAndTheirAffiliatesMember" name="PrincipalOfficersDirectorsAndTheirAffiliatesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_PrincipalReductionExtendedMaturityAndInterestRateReductionMember" name="PrincipalReductionExtendedMaturityAndInterestRateReductionMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_ProceedsFromSaleOfLoansOriginallyHeldForInvestment" name="ProceedsFromSaleOfLoansOriginallyHeldForInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_ProvisionForCreditLossesExpensed" name="ProvisionForCreditLossesExpensed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_PurchaseOfInvestmentInQualifiedAffordableHousingProjects" name="PurchaseOfInvestmentInQualifiedAffordableHousingProjects" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_RbbBancorpMember" name="RbbBancorpMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_RecognitionOfOperatingLeaseLiabilities" name="RecognitionOfOperatingLeaseLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_RecognitionOfOperatingLeaseRightOfUseAssets" name="RecognitionOfOperatingLeaseRightOfUseAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_RequiredAssetsToLiabilitiesRatioAfterDividendEffect" name="RequiredAssetsToLiabilitiesRatioAfterDividendEffect" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="rbb_ResidentialCollateralizedMortgageObligationsMember" name="ResidentialCollateralizedMortgageObligationsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_RetainedEarningsAdjustmentForStockRepurchases" name="RetainedEarningsAdjustmentForStockRepurchases" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_RoyalBusinessBankMember" name="RoyalBusinessBankMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_SBALoansMember" name="SBALoansMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_ScheduleOfAvailableForSaleSecuritiesAndHeldToMaturityTableTextBlock" name="ScheduleOfAvailableForSaleSecuritiesAndHeldToMaturityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_ScheduleOfFinancingReceivablesByCollateralHeldTableTextBlock" name="ScheduleOfFinancingReceivablesByCollateralHeldTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_ScheduleOfSubordinatedDebenturesTableTextBlock" name="ScheduleOfSubordinatedDebenturesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_ServiceChargesFeesAndOtherIncome" name="ServiceChargesFeesAndOtherIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_ShareBasedCompensationArrangementByShareBasedPaymentAwardCommonStockReservedAsPercentageOfIssuedAndOutstanding" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardCommonStockReservedAsPercentageOfIssuedAndOutstanding" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="rbb_SingleFamilyResidentialMortgagesLoansMember" name="SingleFamilyResidentialMortgagesLoansMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_SingleReportableSegmentMember" name="SingleReportableSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_SmallBusinessAdministrationAgencySecuritiesMember" name="SmallBusinessAdministrationAgencySecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_SmallBusinessAdministrationLoansMember" name="SmallBusinessAdministrationLoansMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_StockRepurchaseProgramRemainingAuthorizedShareCount" name="StockRepurchaseProgramRemainingAuthorizedShareCount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="rbb_SubordinatedDebentures" name="SubordinatedDebentures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="rbb_TFCTrustMember" name="TFCTrustMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_TenorSpreadAdjustmentMember" name="TenorSpreadAdjustmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_TfcStatutoryTrustMember" name="TfcStatutoryTrustMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_The2017OmnibusStockIncentivePlanMember" name="The2017OmnibusStockIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_The2025And2025ShareRepurchaseProgramsMember" name="The2025And2025ShareRepurchaseProgramsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_The2025RepurchasePlanMember" name="The2025RepurchasePlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_The2026RepurchasePlanMember" name="The2026RepurchasePlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_Tier2Capital" name="Tier2Capital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TierOneLeverageCapitalRequiredPlusCapitalConservationBufferFullyPhasedInAmount" name="TierOneLeverageCapitalRequiredPlusCapitalConservationBufferFullyPhasedInAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TierOneLeverageCapitalRequiredPlusCapitalConservationBufferFullyPhasedInAverageAssets" name="TierOneLeverageCapitalRequiredPlusCapitalConservationBufferFullyPhasedInAverageAssets" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TierOneRiskBasedCapitalRequiredPlusCapitalConversationBufferFullyPhasedInAmount" name="TierOneRiskBasedCapitalRequiredPlusCapitalConversationBufferFullyPhasedInAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TierOneRiskBasedCapitalRequiredPlusCapitalConversationBufferFullyPhasedInToRiskWeightedAssets" name="TierOneRiskBasedCapitalRequiredPlusCapitalConversationBufferFullyPhasedInToRiskWeightedAssets" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturities250000OrLessRemainderOfFiscalYear" name="TimeDepositMaturities250000OrLessRemainderOfFiscalYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturities250000OrLessYearOne" name="TimeDepositMaturities250000OrLessYearOne" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturitiesOver250000RemainderOfFiscalYear" name="TimeDepositMaturitiesOver250000RemainderOfFiscalYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturitiesOver250000YearOne" name="TimeDepositMaturitiesOver250000YearOne" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturitiesYearFourOverFdicLimit" name="TimeDepositMaturitiesYearFourOverFdicLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturitiesYearFourUnderFdicLimit" name="TimeDepositMaturitiesYearFourUnderFdicLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturitiesYearThreeOverFdicLimit" name="TimeDepositMaturitiesYearThreeOverFdicLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturitiesYearThreeUnderFdicLimit" name="TimeDepositMaturitiesYearThreeUnderFdicLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturitiesYearTwoOverFdicLimit" name="TimeDepositMaturitiesYearTwoOverFdicLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDepositMaturitiesYearTwoUnderFdicLimit" name="TimeDepositMaturitiesYearTwoUnderFdicLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDeposits250000AndUnder" name="TimeDeposits250000AndUnder" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_TimeDeposits250000OrLess" name="TimeDeposits250000OrLess" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="rbb_TimeDepositsAcquiredThroughInternetListingServicesMember" name="TimeDepositsAcquiredThroughInternetListingServicesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_TimebasedRestrictedStockUnitsMember" name="TimebasedRestrictedStockUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="rbb_TransferFromTransferToLoansHeldForSaleNet" name="TransferFromTransferToLoansHeldForSaleNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="rbb_UnfundedLoanCommitmentsAvailableToRelatedParties" name="UnfundedLoanCommitmentsAvailableToRelatedParties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="rbb_WeightedAverageNumberOfSharesImpact" name="WeightedAverageNumberOfSharesImpact" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-10-subordinated-debentures-schedule-of-subordinated-debentures-details" name="statement-statement-note-10-subordinated-debentures-schedule-of-subordinated-debentures-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-10-subordinated-debentures-tables" name="statement-statement-note-10-subordinated-debentures-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-11-borrowing-arrangements-schedule-of-borrowing-arrangements-details" name="statement-statement-note-11-borrowing-arrangements-schedule-of-borrowing-arrangements-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-11-borrowing-arrangements-tables" name="statement-statement-note-11-borrowing-arrangements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-13-commitments-and-contingencies-schedule-of-financial-commitments-represents-credit-risk-details" name="statement-statement-note-13-commitments-and-contingencies-schedule-of-financial-commitments-represents-credit-risk-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-13-commitments-and-contingencies-tables" name="statement-statement-note-13-commitments-and-contingencies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-14-leases-future-minimum-rent-payments-details" name="statement-statement-note-14-leases-future-minimum-rent-payments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-14-leases-operating-lease-details" name="statement-statement-note-14-leases-operating-lease-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-14-leases-tables" name="statement-statement-note-14-leases-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-16-stockbased-compensation-restricted-stock-activity-details" name="statement-statement-note-16-stockbased-compensation-restricted-stock-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-16-stockbased-compensation-summary-of-awards-pursuant-to-stock-option-plans-details" name="statement-statement-note-16-stockbased-compensation-summary-of-awards-pursuant-to-stock-option-plans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-16-stockbased-compensation-tables" name="statement-statement-note-16-stockbased-compensation-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-17-regulatory-matters-summary-of-company-and-bank-continue-to-exceed-regulatory-capital-minimum-requirements-and-bank-continues-to-exceed-well-capitalized-standards-details" name="statement-statement-note-17-regulatory-matters-summary-of-company-and-bank-continue-to-exceed-regulatory-capital-minimum-requirements-and-bank-continues-to-exceed-well-capitalized-standards-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-17-regulatory-matters-tables" name="statement-statement-note-17-regulatory-matters-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-18-fair-value-measurements-and-fair-value-of-financial-instruments-measurement-inputs-and-valuation-techniques-details" name="statement-statement-note-18-fair-value-measurements-and-fair-value-of-financial-instruments-measurement-inputs-and-valuation-techniques-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-18-fair-value-measurements-and-fair-value-of-financial-instruments-schedule-of-fair-value-hierarchy-level-and-estimated-fair-value-of-significant-financial-instruments-details" name="statement-statement-note-18-fair-value-measurements-and-fair-value-of-financial-instruments-schedule-of-fair-value-hierarchy-level-and-estimated-fair-value-of-significant-financial-instruments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-18-fair-value-measurements-and-fair-value-of-financial-instruments-schedule-of-major-category-of-assets-and-liabilities-details" name="statement-statement-note-18-fair-value-measurements-and-fair-value-of-financial-instruments-schedule-of-major-category-of-assets-and-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-18-fair-value-measurements-and-fair-value-of-financial-instruments-tables" name="statement-statement-note-18-fair-value-measurements-and-fair-value-of-financial-instruments-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-19-earnings-per-share-reconciliation-of-net-income-and-shares-outstanding-to-income-and-number-of-shares-used-to-compute-eps-details" name="statement-statement-note-19-earnings-per-share-reconciliation-of-net-income-and-shares-outstanding-to-income-and-number-of-shares-used-to-compute-eps-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-19-earnings-per-share-tables" name="statement-statement-note-19-earnings-per-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-20-revenue-from-contracts-with-customers-summary-of-revenue-from-contracts-with-customers-inscope-and-not-inscope-under-topic-606-details" name="statement-statement-note-20-revenue-from-contracts-with-customers-summary-of-revenue-from-contracts-with-customers-inscope-and-not-inscope-under-topic-606-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-20-revenue-from-contracts-with-customers-tables" name="statement-statement-note-20-revenue-from-contracts-with-customers-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-21-segment-information-schedule-of-segment-information-details" name="statement-statement-note-21-segment-information-schedule-of-segment-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-21-segment-information-tables" name="statement-statement-note-21-segment-information-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-3-investment-securities-amortized-cost-and-fair-value-of-available-for-sale-securities-and-held-to-maturity-securities-details" name="statement-statement-note-3-investment-securities-amortized-cost-and-fair-value-of-available-for-sale-securities-and-held-to-maturity-securities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-3-investment-securities-expected-maturities-details" name="statement-statement-note-3-investment-securities-expected-maturities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-3-investment-securities-summary-of-investment-securities-with-unrealized-losses-details" name="statement-statement-note-3-investment-securities-summary-of-investment-securities-with-unrealized-losses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-3-investment-securities-tables" name="statement-statement-note-3-investment-securities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-4-loans-and-allowance-for-credit-losses-aging-of-recorded-investment-details" name="statement-statement-note-4-loans-and-allowance-for-credit-losses-aging-of-recorded-investment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-4-loans-and-allowance-for-credit-losses-allowance-for-loan-losses-details" name="statement-statement-note-4-loans-and-allowance-for-credit-losses-allowance-for-loan-losses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-4-loans-and-allowance-for-credit-losses-loan-modifications-details" name="statement-statement-note-4-loans-and-allowance-for-credit-losses-loan-modifications-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-4-loans-and-allowance-for-credit-losses-risk-category-of-loans-details" name="statement-statement-note-4-loans-and-allowance-for-credit-losses-risk-category-of-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-4-loans-and-allowance-for-credit-losses-schedule-of-financing-receivables-nonaccrual-status-details" name="statement-statement-note-4-loans-and-allowance-for-credit-losses-schedule-of-financing-receivables-nonaccrual-status-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-4-loans-and-allowance-for-credit-losses-schedule-of-loans-by-collateral-held-details" name="statement-statement-note-4-loans-and-allowance-for-credit-losses-schedule-of-loans-by-collateral-held-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-4-loans-and-allowance-for-credit-losses-schedule-of-loans-details" name="statement-statement-note-4-loans-and-allowance-for-credit-losses-schedule-of-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-4-loans-and-allowance-for-credit-losses-tables" name="statement-statement-note-4-loans-and-allowance-for-credit-losses-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-5-loan-servicing-schedule-of-amortization-of-mortgage-servicing-rights-netted-against-loan-servicing-fee-income-details" name="statement-statement-note-5-loan-servicing-schedule-of-amortization-of-mortgage-servicing-rights-netted-against-loan-servicing-fee-income-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-5-loan-servicing-schedule-of-principal-balances-of-mortgage-and-sba-loans-serviced-for-others-details" name="statement-statement-note-5-loan-servicing-schedule-of-principal-balances-of-mortgage-and-sba-loans-serviced-for-others-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-5-loan-servicing-tables" name="statement-statement-note-5-loan-servicing-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-6-goodwill-and-intangibles-maturity-schedule-for-amortization-expense-details" name="statement-statement-note-6-goodwill-and-intangibles-maturity-schedule-for-amortization-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-6-goodwill-and-intangibles-tables" name="statement-statement-note-6-goodwill-and-intangibles-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-7-accrued-interest-and-other-assets-accrued-interest-and-other-assets-details" name="statement-statement-note-7-accrued-interest-and-other-assets-accrued-interest-and-other-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-7-accrued-interest-and-other-assets-tables" name="statement-statement-note-7-accrued-interest-and-other-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-8-deposits-schedule-of-maturities-of-time-deposits-details" name="statement-statement-note-8-deposits-schedule-of-maturities-of-time-deposits-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-note-8-deposits-tables" name="statement-statement-note-8-deposits-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="rbb_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
