<SEC-DOCUMENT>0001136893-24-000144.txt : 20241108
<SEC-HEADER>0001136893-24-000144.hdr.sgml : 20241108
<ACCEPTANCE-DATETIME>20241108171703
ACCESSION NUMBER:		0001136893-24-000144
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20241107
FILED AS OF DATE:		20241108
DATE AS OF CHANGE:		20241108

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ANASENES NICOLE
		CENTRAL INDEX KEY:			0001748987
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16427
		FILM NUMBER:		241441841

	MAIL ADDRESS:	
		STREET 1:		2600 ANSYS DRIVE
		CITY:			CANONSBURG
		STATE:			PA
		ZIP:			15317

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Fidelity National Information Services, Inc.
		CENTRAL INDEX KEY:			0001136893
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				371490331
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		347 RIVERSIDE AVENUE
		CITY:			JACKSONVILLE
		STATE:			FL
		ZIP:			32202
		BUSINESS PHONE:		407-551-8315

	MAIL ADDRESS:	
		STREET 1:		347 RIVERSIDE AVENUE
		CITY:			JACKSONVILLE
		STATE:			FL
		ZIP:			32202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CERTEGY INC
		DATE OF NAME CHANGE:	20010607

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EQUIFAX PS INC
		DATE OF NAME CHANGE:	20010315
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1731104217.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-11-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001136893</issuerCik>
        <issuerName>Fidelity National Information Services, Inc.</issuerName>
        <issuerTradingSymbol>FIS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001748987</rptOwnerCik>
            <rptOwnerName>ANASENES NICOLE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>347 RIVERSIDE AVE.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>JACKSONVILLE</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-11-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1658</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1658</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These restricted stock units vest and distribute in full on November 7, 2025.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Gerald W. Clanton, attorney-in-fact for Nicole Anasenes</signatureName>
        <signatureDate>2024-11-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
