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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 OuUCyr2HsjiW7tYviGO28P7gr28SvE6ATM5XTG8w+Mvy05P4mNFG2gTCK0oMA0Pa
 cH6jut9ZPMOKDnLro+1s0g==

<SEC-DOCUMENT>0000062741-03-000331.txt : 20031222
<SEC-HEADER>0000062741-03-000331.hdr.sgml : 20031222
<ACCEPTANCE-DATETIME>20031222115332
ACCESSION NUMBER:		0000062741-03-000331
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031218
FILED AS OF DATE:		20031222

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MAAS NANCY A
		CENTRAL INDEX KEY:			0001180799

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15403
		FILM NUMBER:		031066892

	MAIL ADDRESS:	
		STREET 1:		770 N WATER ST
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MARSHALL & ILSLEY CORP/WI/
		CENTRAL INDEX KEY:			0000062741
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				390968604
		STATE OF INCORPORATION:			WI
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ATTN: OFFICE OF THE GENERAL COUNSEL
		STREET 2:		770 NORTH WATER STREET
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202
		BUSINESS PHONE:		4147657801

	MAIL ADDRESS:	
		STREET 1:		770 NORTH WATER ST
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53202
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001180799d20031222f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-12-18</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000062741</issuerCik><issuerName>MARSHALL &amp; ILSLEY CORP/WI/</issuerName>        <issuerTradingSymbol>MI</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001180799</rptOwnerCik><rptOwnerName>MAAS NANCY A</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>770 NORTH WATER STREET</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>MILWAUKEE</rptOwnerCity><rptOwnerState>WI</rptOwnerState><rptOwnerZipCode>53202</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Senior Vice President</officerTitle><otherText></otherText></reportingOwnerRelationship></reporting
Owner><nonDerivativeTable><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3475.086</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>476.6527</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Retirement Program</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Perf. Shares</value></securityTitle><conversionOrExercisePrice><value>0</value><footnoteI
d id="F1"/></conversionOrExercisePrice><transactionDate><value>2003-12-18</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>1500</value></transactionShares><transactionPricePerShare><value>0</value><footnoteId id="F1"/></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2006-12-18</value><footnoteId id="F2"/></exerciseDate><expirationDate><value>2006-12-18</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>1500</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1500</value></sharesOwnedFollowingTransaction></postTransact
ionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Award of performance shares under The Amended and Restated 1994 Long-Term Incentive Plan for Executives. Performance shares may be paid following expiration of the performance period at the company's discretion in cash or in stock in an amount ranging from zero to 275 percent of the performance shares awarded.</footnote><footnote id="F2">Date is end of performance period. Award becomes payable following the end of the performance period when the compensation committee certifies the amount required pursuant to the terms of the award.</footnote></footnotes><ownerSignature><signatureName>Ryan E. Daniels</signatureName><signatureDate>2003-12-22</signatureDate></ownerSignature></ownershipDocument>

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