<SEC-DOCUMENT>0001209191-20-056412.txt : 20201102
<SEC-HEADER>0001209191-20-056412.hdr.sgml : 20201102
<ACCEPTANCE-DATETIME>20201102162620
ACCESSION NUMBER:		0001209191-20-056412
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20201030
FILED AS OF DATE:		20201102
DATE AS OF CHANGE:		20201102

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WARREN KEVIN M
		CENTRAL INDEX KEY:			0001495787

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38962
		FILM NUMBER:		201280770

	MAIL ADDRESS:	
		STREET 1:		55 GLENLAKE PARKWAY, NE
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30328

	FORMER NAME:	
		FORMER CONFORMED NAME:	Warren Kevin M
		DATE OF NAME CHANGE:	20100701

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FISERV INC
		CENTRAL INDEX KEY:			0000798354
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				391506125
		STATE OF INCORPORATION:			WI
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		255 FISERV DR
		STREET 2:		PO BOX 979
		CITY:			BROOKFIELD
		STATE:			WI
		ZIP:			53045
		BUSINESS PHONE:		4148795000

	MAIL ADDRESS:	
		STREET 1:		255 FISERV DRIVE
		CITY:			BROOKFIELD
		STATE:			WI
		ZIP:			53045
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<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
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<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2020-10-30</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000798354</issuerCik>
        <issuerName>FISERV INC</issuerName>
        <issuerTradingSymbol>FISV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001495787</rptOwnerCik>
            <rptOwnerName>WARREN KEVIN M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O UNITED PARCEL SERVICE, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>55 GLENLAKE PARKWAY, NE</rptOwnerStreet2>
            <rptOwnerCity>ATLANTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30328</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Lynn S. McCreary (attorney-in-fact)</signatureName>
        <signatureDate>2020-11-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
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<TYPE>EX-24
<SEQUENCE>2
<FILENAME>attachment1.htm
<DESCRIPTION>EX-24 DOCUMENT
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<PRE>
POWER OF ATTORNEY
Know all by these presents that the undersigned hereby constitutes and appoints
each of Frank J. Bisignano, Robert W. Hau and Lynn S. McCreary, signing singly,
the undersigned's true and lawful attorney-in-fact with respect to the
undersigned's holdings of and transactions in securities issued by Fiserv, Inc.
to:
(1) execute for and on behalf of the undersigned Forms 3, 4 and 5 in accordance
with Section 16(a) of the Securities Exchange Act of 1934 and the rules
thereunder;
(2) do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete the execution of any such Form 3, 4 or
5 and the timely filing of such form with the United States Securities and
Exchange Commission and any other authority; and
(3) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may approve in the
undersigned's discretion.
The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform all and every act and exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as such
attorney-in-fact might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or his or her substitute or substitutes, shall lawfully do or
cause to be done by virtue of this power of attorney and the rights and powers
herein granted.  The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming any of the undersigned's responsibilities to
comply with Section 16 of the Securities Exchange Act of 1934.
The undersigned hereby revokes any power of attorney granted by the undersigned
prior to the date hereof with respect to the undersigned's holdings of and
transactions in securities issued by Fiserv, Inc.  This Power of Attorney shall
remain in full force and effect until the undersigned is no longer required to
file Forms 3, 4 or 5 with respect to the undersigned's holdings of and
transactions in securities issued by Fiserv, Inc., unless earlier revoked by the
undersigned in a signed writing delivered to the foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed this 30th day of October, 2020.
/s/ Kevin M. Warren
Kevin M. Warren



</PRE>
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