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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PbUisxWynxaIIGyzEkmbMknoFmRFwghottDi0rI1wlCtU+a1uEBfXAoxniSZYj4U
 oMlMZmG7YQsyxZ1Fs9vvYw==

<SEC-DOCUMENT>0000877860-08-000041.txt : 20080325
<SEC-HEADER>0000877860-08-000041.hdr.sgml : 20080325
<ACCEPTANCE-DATETIME>20080325122610
ACCESSION NUMBER:		0000877860-08-000041
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080319
FILED AS OF DATE:		20080325
DATE AS OF CHANGE:		20080325

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DENBESTEN KENNETH D
		CENTRAL INDEX KEY:			0001052528
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-SKILLED NURSING CARE FACILITIES [8051]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10822
		FILM NUMBER:		08708766

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		6158902020

	MAIL ADDRESS:	
		STREET 1:		100 VINE ST
		STREET 2:		STE 1400
		CITY:			MURFREESBORO
		STATE:			TN
		ZIP:			37130

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATIONAL HEALTH INVESTORS INC
		CENTRAL INDEX KEY:			0000877860
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				621470956
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		100 VINE ST STE 1400
		STREET 2:		CITY CENTER
		CITY:			MURFREESBORO
		STATE:			TN
		ZIP:			37130
		BUSINESS PHONE:		6158909100

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 1102
		CITY:			MURFREESBORO
		STATE:			TN
		ZIP:			37133-1102
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2008-03-19</periodOfReport>

    <dateOfOriginalSubmission>2008-03-20</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0000877860</issuerCik>
        <issuerName>NATIONAL HEALTH INVESTORS INC</issuerName>
        <issuerTradingSymbol>NHI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001052528</rptOwnerCik>
            <rptOwnerName>DENBESTEN KENNETH D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1610 WEXFORD DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MURFREESBORO</rptOwnerCity>
            <rptOwnerState>TN</rptOwnerState>
            <rptOwnerZipCode>37129</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Senior VP, Finance/Secretary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock (Restricted Stock Award)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>124757</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Family Partnership</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock IRA (DRIP)</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5746</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock in minor child's name</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2918</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Option to Purchase Stock - Right to Buy</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>29.24</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2009-02-04</value>
            </exerciseDate>
            <expirationDate>
                <value>2013-02-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>29000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>29000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Family Partnership</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Option to Purchase Stock - Right to Buy</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>26.10</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2007-03-09</value>
            </exerciseDate>
            <expirationDate>
                <value>2016-03-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>50000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Family Partnership</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On March 20, 2008 the reporting person mistakenly filed a Form 4 reporting the exercise of an option to buy 12,500 shares of common stock.    Also on March 20, 2008, the reporting person mistakenly filed a second Form 4 reporting the exercise of an option to buy 20,833 shares of common stock through a cashless exercise that resulted in the reported acquisition of 4,325 shares of stock.  These transactions did not in fact occur.  This Form 4/A accurately reports all of the reporting person's holdings as of March 20, 2008.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kenneth D. DenBesten</signatureName>
        <signatureDate>2008-03-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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