<SEC-DOCUMENT>0000018349-25-000068.txt : 20250425
<SEC-HEADER>0000018349-25-000068.hdr.sgml : 20250425
<ACCEPTANCE-DATETIME>20250425161722
ACCESSION NUMBER:		0000018349-25-000068
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250424
FILED AS OF DATE:		20250425
DATE AS OF CHANGE:		20250425

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MURPHY DIANA M
		CENTRAL INDEX KEY:			0001205378
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10312
		FILM NUMBER:		25874323

	MAIL ADDRESS:	
		STREET 1:		C/O LANDSTAR SYSTEM INC
		STREET 2:		13410 SUTTON PARK DR S
		CITY:			JACKSONVILLE
		STATE:			FL
		ZIP:			32224

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SYNOVUS FINANCIAL CORP
		CENTRAL INDEX KEY:			0000018349
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		ORGANIZATION NAME:           	02 Finance
		EIN:				581134883
		STATE OF INCORPORATION:			X1
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		33 W 14TH STREET
		CITY:			COLUMBUS
		STATE:			GA
		ZIP:			31901
		BUSINESS PHONE:		7066416500

	MAIL ADDRESS:	
		STREET 1:		33 W 14TH STREET
		CITY:			COLUMBUS
		STATE:			GA
		ZIP:			31901

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CB&T BANCSHARES INC
		DATE OF NAME CHANGE:	19890912
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1745612235.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-04-24</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000018349</issuerCik>
        <issuerName>SYNOVUS FINANCIAL CORP</issuerName>
        <issuerTradingSymbol>SNV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001205378</rptOwnerCik>
            <rptOwnerName>MURPHY DIANA M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 120</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>COLUMBUS</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>31902</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>2025-04-24</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2540</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>43.32</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>39046</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares are subject to restricted stock units. The units are fully vested and transferable upon the earlier to occur of (x) completion of three years of service and (y) date the holder reaches mandatory retirement age, all as specified in the form of Director Stock Unit Agreement.</footnote>
        <footnote id="F2">Includes 612 shares acquired through dividend accruals.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Mary Maurice Young</signatureName>
        <signatureDate>2025-04-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
