<SEC-DOCUMENT>0001628280-18-001207.txt : 20180207
<SEC-HEADER>0001628280-18-001207.hdr.sgml : 20180207
<ACCEPTANCE-DATETIME>20180207154501
ACCESSION NUMBER:		0001628280-18-001207
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180205
FILED AS OF DATE:		20180207
DATE AS OF CHANGE:		20180207

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PUCKETT KAREN A
		CENTRAL INDEX KEY:			0001202861

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07120
		FILM NUMBER:		18581019

	MAIL ADDRESS:	
		STREET 1:		1000 CENTURYTEL DRIVE
		CITY:			MONROE
		STATE:			LA
		ZIP:			71203

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_151803628688765.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-02-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001202861</rptOwnerCik>
            <rptOwnerName>PUCKETT KAREN A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>9601 MCALLISTER FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 610</rptOwnerStreet2>
            <rptOwnerCity>SAN ANTONIO</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78216</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-02-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>77</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>8.81</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>45947</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares were withheld from a previously reported grant of restricted stock issued pursuant to the Issuer's 2013 Omnibus Incentive Plan in order to pay applicable withholding taxes upon vesting.  The share amounts reflect the effect of the Issuer's 1-for-10 reverse stock split effective January 31, 2018.</footnote>
        <footnote id="F2">The share amounts reflect the effect of the Issuer's 1-for-10 reverse stock split effective January 31, 2018.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Robert L. R. Munden, Power of Attorney</signatureName>
        <signatureDate>2018-02-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
