<SEC-DOCUMENT>0000883948-19-000109.txt : 20190321
<SEC-HEADER>0000883948-19-000109.hdr.sgml : 20190321
<ACCEPTANCE-DATETIME>20190321152026
ACCESSION NUMBER:		0000883948-19-000109
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190201
FILED AS OF DATE:		20190321
DATE AS OF CHANGE:		20190321

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SMOOT RAYMOND D JR
		CENTRAL INDEX KEY:			0001282618

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20293
		FILM NUMBER:		19696878

	MAIL ADDRESS:	
		STREET 1:		1447 LUSTERS GATE ROAD
		CITY:			BLACKSBURG
		STATE:			VA
		ZIP:			24060

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Union Bankshares Corp
		CENTRAL INDEX KEY:			0000883948
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				540412820
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1051 EAST CARY STREET
		STREET 2:		SUITE 1200
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23219
		BUSINESS PHONE:		800-990-4828

	MAIL ADDRESS:	
		STREET 1:		1051 EAST CARY STREET
		STREET 2:		SUITE 1200
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23219

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	UNION FIRST MARKET BANKSHARES CORP
		DATE OF NAME CHANGE:	20140424

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Union Bankshares Corp
		DATE OF NAME CHANGE:	20140424

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	UNION FIRST MARKET BANKSHARES CORP
		DATE OF NAME CHANGE:	20100201
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_155319601213656.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-02-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000883948</issuerCik>
        <issuerName>Union Bankshares Corp</issuerName>
        <issuerTradingSymbol>UBSH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001282618</rptOwnerCik>
            <rptOwnerName>SMOOT RAYMOND D JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O UNION BANKSHARES CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>1051 EAST CARY STREET, SUITE 1200</rptOwnerStreet2>
            <rptOwnerCity>RICHMOND</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>23219</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-02-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</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>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>35685.8184</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Received in exchange for 2,000 shares of Access National Corporation (&quot;Access) common stock in connection with the merger of Access with and into Union Bankshares Corporation (&quot;Union&quot;) effective February 1, 2019 (the &quot;Merger&quot;). At the effective time of the Merger at 12:01 a.m. on February 1, 2019 (the &quot;Effective Time&quot;), each outstanding share of Access common stock converted into the right to receive 0.75 shares of Union common stock. On January 31, 2019, the last trading day before the Effective Time, the closing price of Access's common stock was $23.61 per share and the closing price of Union's common stock was $31.56 per share. All fractional share holdings were paid in cash.</footnote>
        <footnote id="F2">Includes additional shares acquired through dividend reinvestment since the reporting person's last Form 4.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Rachael R. Lape, as attorney-in-fact for Raymond D. Smoot, Jr.</signatureName>
        <signatureDate>2019-03-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
