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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 FIrfMvdxP4vBlErw0MWXJCBG2DznLOFjD7An2vfC+rn2nKxUvQMnLMIEZ/VpBPrj
 PkELd8z3pF07Fkn3aAex4Q==

<SEC-DOCUMENT>0001209191-03-035963.txt : 20031219
<SEC-HEADER>0001209191-03-035963.hdr.sgml : 20031219
<ACCEPTANCE-DATETIME>20031219142343
ACCESSION NUMBER:		0001209191-03-035963
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031210
FILED AS OF DATE:		20031219

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			M&T BANK CORP
		CENTRAL INDEX KEY:			0000036270
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				160968385
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		C/O CORPORATE REPORTING
		STREET 2:		ONE M&T PLAZA 5TH FLOOR
		CITY:			BUFFALO
		STATE:			NY
		ZIP:			14203
		BUSINESS PHONE:		7168425390

	MAIL ADDRESS:	
		STREET 1:		C/O CORPORAE REPORTING
		STREET 2:		ONE M&T PLAZA 5TH FLR
		CITY:			BUFFALO
		STATE:			NY
		ZIP:			14203

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIRST EMPIRE STATE CORP
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRAUNSCHEIDEL STEPHEN J
		CENTRAL INDEX KEY:			0001273914

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09861
		FILM NUMBER:		031064722

	BUSINESS ADDRESS:	
		STREET 1:		C/O M&T BANK CORP
		STREET 2:		ONE M&T PLZ
		CITY:			BUFFALO
		STATE:			NY
		ZIP:			14203
		BUSINESS PHONE:		7168425445

	MAIL ADDRESS:	
		STREET 1:		C/O M&T BANK CORP
		STREET 2:		ONE M&T PLZ
		CITY:			BUFFALO
		STATE:			NY
		ZIP:			14203
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>3</documentType><periodOfReport>2003-12-10</periodOfReport><noSecuritiesOwned>0</noSecuritiesOwned><issuer><issuerCik>0000036270</issuerCik><issuerName>M&amp;T BANK CORP</issuerName>        <issuerTradingSymbol>MTB</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001273914</rptOwnerCik><rptOwnerName>BRAUNSCHEIDEL STEPHEN J</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>ONE M&amp;T PLAZA</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>BUFFALO</rptOwnerCity><rptOwnerState>NY</rptOwnerState><rptOwnerZipCode>14203-2399</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Sr. VP/Subsidiary</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivat
iveTable><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>6717.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value><footnoteId id="F1" /></directOrIndirectOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>8084.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>401(k) Plan</value><footnoteId id="F2" /></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeHolding><securityTitle><value>Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>42.0000</value></conversionOrExercisePrice><exerc
iseDate><footnoteId id="F3" /></exerciseDate><expirationDate><value>2010-01-18</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>4000.0000</value></underlyingSecurityShares></underlyingSecurity><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>65.8000</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F4" /></exerciseDate><expirationDate><value>2011-01-16</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>10000.0000</value></underlyingSecurityShares></underlyingSecurity><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><de
rivativeHolding><securityTitle><value>Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>75.8000</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F5" /></exerciseDate><expirationDate><value>2012-01-15</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>12000.0000</value></underlyingSecurityShares></underlyingSecurity><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>80.2300</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F6" /></exerciseDate><expirationDate><value>2013-01-21</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>12000.0000</value></underlyi
ngSecurityShares></underlyingSecurity><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes><footnote id="F1">Jointly owned.</footnote><footnote id="F2">The information presented is as of September 30, 2003.</footnote><footnote id="F3">The option included a total of 10,000 shares.  6,000 of the covered shares were previously exercised; and the remaining 4,000 covered shares are exercisable on or after January 18, 2004.</footnote><footnote id="F4">The option included a total of 10,000 shares. 3,000 of the covered shares are currently exercisable; 3,000 additional covered shares are exercisable on or after January 16, 2004; and the remaining 4,000 covered shares are exercisable on or after January 16, 2005.</footnote><footnote id="F5">The option included a total of 12,000 shares. 1,200 of the covered shares are currently exercisable; 2,400 additional covered shares are exercisable on or after January 15, 2004; 
3,600 additional covered shares are exercisable on or after January 15, 2005; and the remaining 4,800 covered shares are exercisable on or after January 15, 2006.</footnote><footnote id="F6">The option included a total of 12,000 shares. 1,200 of the covered shares are exercisable on or after January 21, 2004; 2,400 additional covered shares are exercisable on or after January 21, 2005; 3,600 additional covered shares are exercisable on or after January 21, 2006; and the remaining 4,800 covered shares are exercisable on or after January 21, 2007.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>Stephen J. Braunscheidel</signatureName><signatureDate>2003-12-18</signatureDate></ownerSignature></ownershipDocument>

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</SEC-DOCUMENT>
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