<SEC-DOCUMENT>0001628280-18-009745.txt : 20180730
<SEC-HEADER>0001628280-18-009745.hdr.sgml : 20180730
<ACCEPTANCE-DATETIME>20180730141204
ACCESSION NUMBER:		0001628280-18-009745
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180727
FILED AS OF DATE:		20180730
DATE AS OF CHANGE:		20180730

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KEATING MELVIN L
		CENTRAL INDEX KEY:			0001263463

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07120
		FILM NUMBER:		18977155

	MAIL ADDRESS:	
		STREET 1:		18 DRIFTWOOD DRIVE
		CITY:			LIVINGSTON
		STATE:			NJ
		ZIP:			07039

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HARTE HANKS INC
		CENTRAL INDEX KEY:			0000045919
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-DIRECT MAIL ADVERTISING SERVICES [7331]
		IRS NUMBER:				741677284
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9601 MCALLISTER FREEWAY
		STREET 2:		SUITE 610
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78216
		BUSINESS PHONE:		2108299000

	MAIL ADDRESS:	
		STREET 1:		9601 MCALLISTER FREEWAY
		STREET 2:		SUITE 610
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78216

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HARTE HANKS COMMUNICATIONS INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HARTE HANKS NEWSPAPERS INC
		DATE OF NAME CHANGE:	19771010
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_153297430904638.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-07-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000045919</issuerCik>
        <issuerName>HARTE HANKS INC</issuerName>
        <issuerTradingSymbol>HHS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001263463</rptOwnerCik>
            <rptOwnerName>KEATING MELVIN L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>46 FOUR SEASONS DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NORTH CALDWELL</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07006</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>2018-07-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6835</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>13725</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These restricted stock units were issued pursuant to the Harte-Hanks, Inc. 2013 Omnibus Incentive Plan, and vest in three equal annual installments.  Each restricted stock unit represents a contingent right to receive one share of Issuer's common stock.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jon C. Biro, Power of Attorney</signatureName>
        <signatureDate>2018-07-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
