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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,
 F64O+5RTFJQBpesLem4xmWBmlUOmiuaUfrbww49Qyr8pSnYs3pU4OWfUu7b4HB+9
 FT4tyf47+lU5D5l3Tuymiw==

<SEC-DOCUMENT>0000062741-04-000017.txt : 20040120
<SEC-HEADER>0000062741-04-000017.hdr.sgml : 20040119
<ACCEPTANCE-DATETIME>20040120162721
ACCESSION NUMBER:		0000062741-04-000017
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040118
FILED AS OF DATE:		20040120

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FURLONG MARK F
		CENTRAL INDEX KEY:			0001131355

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15403
		FILM NUMBER:		04532871

	BUSINESS ADDRESS:	
		STREET 1:		OLD KENT FINANCIAL CORP
		STREET 2:		ONE VANDENBERG CENTER
		CITY:			GRAND RAPIDS
		STATE:			MI
		ZIP:			49503

	MAIL ADDRESS:	
		STREET 1:		770 M 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>c0001131355d20040120f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2004-01-18</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000062741</issuerCik><issuerName>MARSHALL &amp; ILSLEY CORP/WI/</issuerName>        <issuerTradingSymbol>MI</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001131355</rptOwnerCik><rptOwnerName>FURLONG MARK F</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 &amp; CFO</officerTitle><otherText></otherText></reportingOwnerRelationship
></reportingOwner><nonDerivativeTable><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>27750</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Performance Units</value><footnoteId id="F1"/></securityTitle><conversionOrExercisePrice><value>2.2678</value></conversionOrExercisePrice><transactionDate><value>2004-01-18</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>D</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>6000</value></transactionShares><transactionPricePerSha
re><value>38.14</value><footnoteId id="F2"/></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-01-18</value></exerciseDate><expirationDate><value>2004-01-18</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>6000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Performance units represent a conversion of 2.2678 shares per one unit.</footnote><footnote id="F2">Represents common stock price used to settle performance units.</footnote></footno
tes><ownerSignature><signatureName>Ryan E. Daniels</signatureName><signatureDate>2004-01-20</signatureDate></ownerSignature></ownershipDocument>

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</SEC-DOCUMENT>
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