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        <link:definition>06263 - Disclosure - Parent Company Financial Statements (Details Textual)</link:definition>
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        <link:definition>061210 - Disclosure - Pension Plans and other Postretirement Benefits (Details 10)</link:definition>
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        <link:definition>06057 - Disclosure - Allowance for Credit Losses (Details Textual)</link:definition>
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        <link:definition>06056 - Disclosure - Allowance For Credit Losses (Details 6)</link:definition>
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        <link:definition>06055 - Disclosure - Allowance for Credit Losses (Details 5)</link:definition>
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        <link:definition>06054 - Disclosure - Allowance for Credit Losses (Details 4)</link:definition>
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      <link:roleType roleURI="http://mtb.com/role/AllowanceForCreditLossesDetails3" id="AllowanceForCreditLossesDetails3">
        <link:definition>06053 - Disclosure - Allowance for Credit Losses (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>06052 - Disclosure - Allowance for Credit Losses (Details 2)</link:definition>
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      <link:roleType roleURI="http://mtb.com/role/AllowanceForCreditLossesDetails1" id="AllowanceForCreditLossesDetails1">
        <link:definition>06051 - Disclosure - Allowance for Credit Losses (Details 1)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>0505 - Disclosure - Allowance For Credit Losses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/AllowanceForCreditLossesDetails" id="AllowanceForCreditLossesDetails">
        <link:definition>0605 - Disclosure - Allowance for Credit Losses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/AllowanceForCreditLosses" id="AllowanceForCreditLosses">
        <link:definition>0205 - Disclosure - Allowance for Credit Losses</link:definition>
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      <link:roleType roleURI="http://mtb.com/role/RelationshipWithAcquireeDetails" id="RelationshipWithAcquireeDetails">
        <link:definition>0624 - Disclosure - Relationship of M&amp;T and AIB (Details)</link:definition>
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        <link:definition>0224 - Disclosure - Relationship of M&amp;T and AIB</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>06231 - Disclosure - Regulatory Matters (Details Textual)</link:definition>
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      <link:roleType roleURI="http://mtb.com/role/RegulatoryMattersDetails" id="RegulatoryMattersDetails">
        <link:definition>0623 - Disclosure - Regulatory Matters (Details)</link:definition>
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        <link:definition>0523 - Disclosure - Regulatory Matters (Tables)</link:definition>
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        <link:definition>0223 - Disclosure - Regulatory Matters</link:definition>
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        <link:definition>06152 - Disclosure - Comprehensive income (Details Textual)</link:definition>
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        <link:definition>06134 - Disclosure - Income taxes (Details Textual)</link:definition>
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        <link:definition>06133 - Disclosure - Income taxes (Details 3)</link:definition>
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        <link:definition>06132 - Disclosure - Income taxes (Details 2)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/IncomeTaxesDetails1" id="IncomeTaxesDetails1">
        <link:definition>06131 - Disclosure - Income taxes (Details 1)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/IncomeTaxesDetails" id="IncomeTaxesDetails">
        <link:definition>0613 - Disclosure - Income taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/IncomeTaxesTables" id="IncomeTaxesTables">
        <link:definition>0513 - Disclosure - Income taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/IncomeTaxes" id="IncomeTaxes">
        <link:definition>0213 - Disclosure - Income taxes</link:definition>
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        <link:definition>06112 - Disclosure - Stock-based compensation plans (Details Textual)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>06111 - Disclosure - Stock-based compensation plans (Details 1)</link:definition>
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        <link:definition>0611 - Disclosure - Stock-based compensation plans (Details)</link:definition>
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        <link:definition>0511 - Disclosure - Stock-based compensation plans (Tables)</link:definition>
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        <link:definition>0211 - Disclosure - Stock-based compensation plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>06141 - Disclosure - Earnings Per Share (Details 1)</link:definition>
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        <link:definition>0509 - Disclosure - Borrowings (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/BorrowingsDetails3" id="BorrowingsDetails3">
        <link:definition>06093 - Disclosure - Borrowings (Details 3)</link:definition>
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        <link:definition>06092 - Disclosure - Borrowings (Details 2)</link:definition>
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      <link:roleType roleURI="http://mtb.com/role/BorrowingsDetails1" id="BorrowingsDetails1">
        <link:definition>06091 - Disclosure - Borrowings (Details 1)</link:definition>
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        <link:definition>06094 - Disclosure - Borrowings (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>0617 - Disclosure - International activities (Details)</link:definition>
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        <link:definition>0217 - Disclosure - International activities</link:definition>
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        <link:definition>061209 - Disclosure - Pension plans and other postretirement benefits (Details 9)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/PensionPlansAndOtherPostretirementBenefitsDetails8" id="PensionPlansAndOtherPostretirementBenefitsDetails8">
        <link:definition>061208 - Disclosure - Pension plans and other postretirement benefits (Details 8)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/PensionPlansAndOtherPostretirementBenefitsDetails7" id="PensionPlansAndOtherPostretirementBenefitsDetails7">
        <link:definition>061207 - Disclosure - Pension plans and other postretirement benefits (Details 7)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/PensionPlansAndOtherPostretirementBenefitsDetails6" id="PensionPlansAndOtherPostretirementBenefitsDetails6">
        <link:definition>061206 - Disclosure - Pension plans and other postretirement benefits (Details 6)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/PensionPlansAndOtherPostretirementBenefitsDetails5" id="PensionPlansAndOtherPostretirementBenefitsDetails5">
        <link:definition>061205 - Disclosure - Pension plans and other postretirement benefits (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/PensionPlansAndOtherPostretirementBenefitsDetails4" id="PensionPlansAndOtherPostretirementBenefitsDetails4">
        <link:definition>061204 - Disclosure - Pension plans and other postretirement benefits (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/PensionPlansAndOtherPostretirementBenefitsDetails3" id="PensionPlansAndOtherPostretirementBenefitsDetails3">
        <link:definition>061203 - Disclosure - Pension plans and other postretirement benefits (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/PensionPlansAndOtherPostretirementBenefitsDetails2" id="PensionPlansAndOtherPostretirementBenefitsDetails2">
        <link:definition>061202 - Disclosure - Pension plans and other postretirement benefits (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/PensionPlansAndOtherPostretirementBenefitsDetails1" id="PensionPlansAndOtherPostretirementBenefitsDetails1">
        <link:definition>061201 - Disclosure - Pension plans and other postretirement benefits (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/GoodwillAndOtherIntangibleAssetsDetailsTextual" id="GoodwillAndOtherIntangibleAssetsDetailsTextual">
        <link:definition>06083 - Disclosure - Goodwill and Other Intangible Assets (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType roleURI="http://mtb.com/role/GoodwillAndOtherIntangibleAssetsDetails2" id="GoodwillAndOtherIntangibleAssetsDetails2">
        <link:definition>06082 - Disclosure - Goodwill and Other Intangible Assets (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/GoodwillAndOtherIntangibleAssetsDetails1" id="GoodwillAndOtherIntangibleAssetsDetails1">
        <link:definition>06081 - Disclosure - Goodwill and Other Intangible Assets (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/GoodwillAndOtherIntangibleAssetsDetails" id="GoodwillAndOtherIntangibleAssetsDetails">
        <link:definition>0608 - Disclosure - Goodwill and Other Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/GoodwillAndOtherIntangibleAssetsTables" id="GoodwillAndOtherIntangibleAssetsTables">
        <link:definition>0508 - Disclosure - Goodwill and other intangible assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/GoodwillAndOtherIntangibleAssets" id="GoodwillAndOtherIntangibleAssets">
        <link:definition>0208 - Disclosure - Goodwill and other intangible assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/CapitalizedServicingAssetsDetailsTextual" id="CapitalizedServicingAssetsDetailsTextual">
        <link:definition>06072 - Disclosure - Capitalized servicing assets (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/PremisesAndEquipmentTables" id="PremisesAndEquipmentTables">
        <link:definition>0506 - Disclosure - Premises and equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/CapitalizedServicingAssetsDetails1" id="CapitalizedServicingAssetsDetails1">
        <link:definition>06071 - Disclosure - Capitalized servicing assets (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/CapitalizedServicingAssetsDetails" id="CapitalizedServicingAssetsDetails">
        <link:definition>0607 - Disclosure - Capitalized servicing assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/CapitalizedServicingAssetsTables" id="CapitalizedServicingAssetsTables">
        <link:definition>0507 - Disclosure - Capitalized servicing assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/CapitalizedServicingAssets" id="CapitalizedServicingAssets">
        <link:definition>0207 - Disclosure - Capitalized servicing assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/PremisesAndEquipmentDetails" id="PremisesAndEquipmentDetails">
        <link:definition>0606 - Disclosure - Premises And Equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/PremisesAndEquipment" id="PremisesAndEquipment">
        <link:definition>0206 - Disclosure - Premises and equipment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/InvestmentSecuritiesDetails6" id="InvestmentSecuritiesDetails6">
        <link:definition>06036 - Disclosure - Investment Securities (Details 6)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/InvestmentSecuritiesDetails5" id="InvestmentSecuritiesDetails5">
        <link:definition>06035 - Disclosure - Investment Securities (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/CommitmentsAndContingenciesDetailsTextual" id="CommitmentsAndContingenciesDetailsTextual">
        <link:definition>06212 - Disclosure - Commitments and Contingencies (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/CommitmentsAndContingenciesDetails1" id="CommitmentsAndContingenciesDetails1">
        <link:definition>06211 - Disclosure - Commitments and Contingencies (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/OtherIncomeAndOtherExpense" id="OtherIncomeAndOtherExpense">
        <link:definition>0216 - Disclosure - Other income and other expense</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/OtherIncomeAndOtherExpenseTables" id="OtherIncomeAndOtherExpenseTables">
        <link:definition>0516 - Disclosure - Other income and other expense (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/OtherIncomeAndOtherExpenseDetails" id="OtherIncomeAndOtherExpenseDetails">
        <link:definition>0616 - Disclosure - Other income and other expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ParentCompanyFinancialStatementsDetails2" id="ParentCompanyFinancialStatementsDetails2">
        <link:definition>06262 - Disclosure - Parent Company Financial Statements (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ParentCompanyFinancialStatementsDetails1" id="ParentCompanyFinancialStatementsDetails1">
        <link:definition>06261 - Disclosure - Parent Company Financial Statements (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ParentCompanyFinancialStatementsDetails" id="ParentCompanyFinancialStatementsDetails">
        <link:definition>0626 - Disclosure - Parent Company Financial Statements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ParentCompanyFinancialStatementsTables" id="ParentCompanyFinancialStatementsTables">
        <link:definition>0526 - Disclosure - Parent Company Financial Statements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ParentCompanyFinancialStatements" id="ParentCompanyFinancialStatements">
        <link:definition>0226 - Disclosure - Parent Company Financial Statements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/SignificantAccountingPoliciesDetails" id="SignificantAccountingPoliciesDetails">
        <link:definition>0601 - Disclosure - Significant Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/AcquisitionsDetailsTextual" id="AcquisitionsDetailsTextual">
        <link:definition>06024 - Disclosure - Acquisitions (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/FairValueMeasurementsDetails1" id="FairValueMeasurementsDetails1">
        <link:definition>06201 - Disclosure - Fair value measurements (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/SegmentInformationDetailsTextual" id="SegmentInformationDetailsTextual">
        <link:definition>06222 - Disclosure - Segment information (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/SegmentInformationDetails1" id="SegmentInformationDetails1">
        <link:definition>06221 - Disclosure - Segment information (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/FairValueMeasurementsDetailsTextual" id="FairValueMeasurementsDetailsTextual">
        <link:definition>06203 - Disclosure - Fair value measurements (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/FairValueMeasurementsDetails2" id="FairValueMeasurementsDetails2">
        <link:definition>06202 - Disclosure - Fair value measurements (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/DerivativeFinancialInstrumentsDetailsTextual" id="DerivativeFinancialInstrumentsDetailsTextual">
        <link:definition>06183 - Disclosure - Derivative financial instruments (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/DerivativeFinancialInstrumentsDetails1" id="DerivativeFinancialInstrumentsDetails1">
        <link:definition>06181 - Disclosure - Derivative financial instruments (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/DerivativeFinancialInstrumentsDetails2" id="DerivativeFinancialInstrumentsDetails2">
        <link:definition>06182 - Disclosure - Derivative financial instruments (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ComprehensiveIncomeDetails1" id="ComprehensiveIncomeDetails1">
        <link:definition>06151 - Disclosure - Comprehensive income (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/AcquisitionsDetails3" id="AcquisitionsDetails3">
        <link:definition>06021 - Disclosure - Acquisitions (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/AcquisitionsDetails2" id="AcquisitionsDetails2">
        <link:definition>06022 - Disclosure - Acquisitions (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/AcquisitionsDetails1" id="AcquisitionsDetails1">
        <link:definition>0602 - Disclosure - Acquisitions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/LoansAndLeasesAndAllowanceForCreditLosses" id="LoansAndLeasesAndAllowanceForCreditLosses">
        <link:definition>0204 - Disclosure - Loans and leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/InvestmentSecuritiesDetails4" id="InvestmentSecuritiesDetails4">
        <link:definition>06034 - Disclosure - Investment Securities (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ShareholdersEquityDetails" id="ShareholdersEquityDetails">
        <link:definition>0610 - Disclosure - Shareholders' equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ShareholdersEquityTables" id="ShareholdersEquityTables">
        <link:definition>0510 - Disclosure - Shareholders' equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ShareholdersEquity" id="ShareholdersEquity">
        <link:definition>0210 - Disclosure - Shareholders' equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/InvestmentSecuritiesDetailsTextual" id="InvestmentSecuritiesDetailsTextual">
        <link:definition>06037 - Disclosure - Investment Securities (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/InvestmentSecuritiesDetails3" id="InvestmentSecuritiesDetails3">
        <link:definition>06033 - Disclosure - Investment Securities (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/InvestmentSecuritiesDetails2" id="InvestmentSecuritiesDetails2">
        <link:definition>06032 - Disclosure - Investment Securities (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/InvestmentSecuritiesDetails1" id="InvestmentSecuritiesDetails1">
        <link:definition>06031 - Disclosure - Investment Securities (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/PensionPlansAndOtherPostretirementBenefitsDetailsTextual" id="PensionPlansAndOtherPostretirementBenefitsDetailsTextual">
        <link:definition>061211 - Disclosure - Pension plans and other postretirement benefits (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/SignificantAccountingPoliciesPloicies" id="SignificantAccountingPoliciesPloicies">
        <link:definition>0401 - Disclosure - Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/VariableInterestEntitiesAndAssetSecuritizations" id="VariableInterestEntitiesAndAssetSecuritizations">
        <link:definition>0219 - Disclosure - Variable interest entities and asset securitizations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/VariableInterestEntitiesAndAssetSecuritizationsDetails" id="VariableInterestEntitiesAndAssetSecuritizationsDetails">
        <link:definition>0619 - Disclosure - Variable interest entities and asset securitizations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/FairValueMeasurementsTables" id="FairValueMeasurementsTables">
        <link:definition>0520 - Disclosure - Fair value measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/FairValueMeasurementsDetails" id="FairValueMeasurementsDetails">
        <link:definition>0620 - Disclosure - Fair value measurements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/InvestmentSecuritiesTables" id="InvestmentSecuritiesTables">
        <link:definition>0503 - Disclosure - Investment securities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/InvestmentSecuritiesDetails" id="InvestmentSecuritiesDetails">
        <link:definition>0603 - Disclosure - Investment securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/DerivativeFinancialInstrumentsTables" id="DerivativeFinancialInstrumentsTables">
        <link:definition>0518 - Disclosure - Derivative financial instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/DerivativeFinancialInstrumentsDetails" id="DerivativeFinancialInstrumentsDetails">
        <link:definition>0618 - Disclosure - Derivative financial instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ComprehensiveIncomeDetails" id="ComprehensiveIncomeDetails">
        <link:definition>0615 - Disclosure - Comprehensive income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/ComprehensiveIncomeTables" id="ComprehensiveIncomeTables">
        <link:definition>0515 - Disclosure - Comprehensive income (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/AcquisitionsDetails" id="AcquisitionsDetails">
        <link:definition>06023 - Disclosure - Acquisitions (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/AcquisitionsTables" id="AcquisitionsTables">
        <link:definition>0502 - Disclosure - Acquisitions (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/SegmentInformationDetails" id="SegmentInformationDetails">
        <link:definition>0622 - Disclosure - Segment information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://mtb.com/role/SegmentInformationTables" id="SegmentInformationTables">
        <link:definition>0522 - Disclosure - Segment information (Tables)</link:definition>
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