-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 DV8nllIdixP7srycUoxeIiOj/GoHpmZVk0H5PiKMAJ8sjk6GW5bxry64YkvddAXn
 fGSXr+F0kj2M9HVRL9r4Ug==

<SEC-DOCUMENT>0001179110-05-022673.txt : 20051209
<SEC-HEADER>0001179110-05-022673.hdr.sgml : 20051209
<ACCEPTANCE-DATETIME>20051209150030
ACCESSION NUMBER:		0001179110-05-022673
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20051209
FILED AS OF DATE:		20051209
DATE AS OF CHANGE:		20051209

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Eckert Andrew J
		CENTRAL INDEX KEY:			0001345667

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16191
		FILM NUMBER:		051255372

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		763-540-1200

	MAIL ADDRESS:	
		STREET 1:		TENNANT COMPANY
		STREET 2:		701 N LILAC DR
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55422

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TENNANT CO
		CENTRAL INDEX KEY:			0000097134
		STANDARD INDUSTRIAL CLASSIFICATION:	REFRIGERATION & SERVICE INDUSTRY MACHINERY [3580]
		IRS NUMBER:				410572550
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		701 N LILAC DR
		STREET 2:		PO BOX 1452
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55440
		BUSINESS PHONE:		6125401200

	MAIL ADDRESS:	
		STREET 1:		701 N LILAC DR
		STREET 2:		PO BOX 1452
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55440

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TENNANT G H CO
		DATE OF NAME CHANGE:	19700515
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 3 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-12-09</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000097134</issuerCik>
        <issuerName>TENNANT CO</issuerName>
        <issuerTradingSymbol>TNC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001345667</rptOwnerCik>
            <rptOwnerName>Eckert Andrew J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>TENNANT COMPANY, LAW DEPT., MD 29</rptOwnerStreet1>
            <rptOwnerStreet2>701 N. LILAC DR.</rptOwnerStreet2>
            <rptOwnerCity>MINNEAPOLIS</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55422</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, NA Sales</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1595.760</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Profit Sharing &amp; ESOP</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>35.90</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2012-12-02</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>30.75</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2013-02-19</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>41.63</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-02-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1800</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>47.55</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>2015-11-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>7500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Option exercisable in one third increments on each of December 2, 2003; December 2, 2004 and December 2, 2005.</footnote>
        <footnote id="F2">Option exercisable in one-third increments on each of February 19, 2004; February 19, 2005 and February 19, 2006.</footnote>
        <footnote id="F3">Option exercisable in one-third increments on each of February 17, 2005; February 17, 2006 and February 17, 2007.</footnote>
        <footnote id="F4">Option exercisable in one-third increments on each of November 8, 2006; November 8, 2007 and November 8, 2008.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/John S. Livingston, as Attorney in Fact</signatureName>
        <signatureDate>2005-12-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.TXT
<SEQUENCE>2
<FILENAME>ex24tnceckert.txt
<DESCRIPTION>ECKERT POWER OF ATTORNEY
<TEXT>
POWER OF ATTORNEY

	I, Andrew J. Eckert, hereby authorize and
designate each of Heidi M. Hoard, Tina L. Lorleberg,
John S. Livingston, Amy C. Seidel and Melissa D. Richason,
signing singly, as my true and lawful attorney-in-fact to:

(1)	execute for and on my behalf, in my capacity as an
officer and/or director of Tennant Company (the "Company"),
Forms 3, 4 and 5 in accordance with Section 16(a) of the
Securities Exchange Act of 1934 (the "Exchange Act") and the
rules and regulations promulgated thereunder;

(2)	do and perform any and all acts for and on my
behalf which may be necessary or desirable to complete and
execute any such Form 3, 4 or 5 and timely file such form
with the Securities and Exchange Commission, any stock
exchange or similar authority, and the National Association
of Securities Dealers; and

(3)	take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of such
attorney-in-fact, may be to my benefit, in my best interest,
or legally required of me, it being understood that the
statements executed by such attorney-in-fact on my behalf
pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such
attorney-in-fact may approve in such attorney-in-fact's
discretion.

	I hereby further grant to each such attorney-in-fact
full power and authority to do and perform any and every
act and thing whatsoever requisite, necessary, or proper
to be done in the exercise of any of the rights and
powers herein granted, as fully to all intents and purposes
as I might or could do if personally present, with full power
of substitutes or revocation, hereby ratifying and confirming
all that such attorney-in-fact, or such attorney-in-fact's
substitute or substitutes, shall lawfully do or cause to be
done by virtue of this Power of Attorney and the rights and
powers herein granted.  I hereby acknowledge that the
foregoing attorneys-in-fact, in serving in such capacity at
my request, are not assuming, nor is the Company assuming,
any of my responsibilities to comply with Section 16 of the
Exchange Act.

	This Power of Attorney shall remain in full force
and effect until I am no longer required to file Forms 3, 4
and 5 with respect to my holdings of and transactions in
securities issued by the Company, unless earlier revoked by
me in a signed writing delivered to the foregoing
attorneys-in-fact.

	IN WITNESS WHEREOF, I have caused this Power of
Attorney to be duly executed as of this 16th day of
November, 2005.


				/s/Andrew J. Eckert


E:\Corporate\Insider Trading\ex24TNCeckert.txt



</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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