<SEC-DOCUMENT>0000048287-18-000180.txt : 20180726
<SEC-HEADER>0000048287-18-000180.hdr.sgml : 20180726
<ACCEPTANCE-DATETIME>20180726143933
ACCESSION NUMBER:		0000048287-18-000180
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180725
FILED AS OF DATE:		20180726
DATE AS OF CHANGE:		20180726

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CALADO MIGUEL M
		CENTRAL INDEX KEY:			0001136258
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14225
		FILM NUMBER:		18971351

	MAIL ADDRESS:	
		STREET 1:		3600 AMHERST
		STREET 2:		UNIVERSITY PARK
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HNI CORP
		CENTRAL INDEX KEY:			0000048287
		STANDARD INDUSTRIAL CLASSIFICATION:	OFFICE FURNITURE (NO WOOD) [2522]
		IRS NUMBER:				420617510
		STATE OF INCORPORATION:			IA
		FISCAL YEAR END:			1229

	BUSINESS ADDRESS:	
		STREET 1:		600 EAST SECOND STREET - PO BOX 1109
		CITY:			MUSCATINE
		STATE:			IA
		ZIP:			52761-7109
		BUSINESS PHONE:		5632727400

	MAIL ADDRESS:	
		STREET 1:		600 EAST SECOND STREET
		STREET 2:		P O BOX 1109
		CITY:			MUSCATINE
		STATE:			IA
		ZIP:			52761

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HON INDUSTRIES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HOME O NIZE CO
		DATE OF NAME CHANGE:	19681001
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_153263035577111.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-07-25</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000048287</issuerCik>
        <issuerName>HNI CORP</issuerName>
        <issuerTradingSymbol>HNI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001136258</rptOwnerCik>
            <rptOwnerName>CALADO MIGUEL M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>600 EAST SECOND STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MUSCATINE</rptOwnerCity>
            <rptOwnerState>IA</rptOwnerState>
            <rptOwnerZipCode>52761</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>2018-07-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>45.004</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>50287.348</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The sale was effected pursuant to a Rule 10b5-1 of the Securities and Exchange Act of 1934, as amended, and HNI's policies regarding stock transactions, including its insider trading policy.</footnote>
        <footnote id="F2">The price in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.00 - $45.05, inclusive. The reporting person undertakes to provide HNI Corporation, any security holder of HNI Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Julie Abramowski,
By Power of Attorney</signatureName>
        <signatureDate>2018-07-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
