    <SEC-DOCUMENT>0001466593-22-000015-index.html : 20220302
    <SEC-HEADER>0001466593-22-000015.hdr.sgml : 20220302
    <ACCEPTANCE-DATETIME>20220302112705
    ACCESSION NUMBER:		0001466593-22-000015
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		23
    CONFORMED PERIOD OF REPORT:	20211231
    FILED AS OF DATE:		20220302
    DATE AS OF CHANGE:		20220302

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Otter Tail Corp
    		CENTRAL INDEX KEY:			0001466593
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
    		IRS NUMBER:				270383995
    		STATE OF INCORPORATION:			MN
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-53713
    		FILM NUMBER:		22701879

    	BUSINESS ADDRESS:
    		STREET 1:		215 S CASCADE ST
    		STREET 2:		PO BOX 496
    		CITY:			FERGUS FALLS
    		STATE:			MN
    		ZIP:			56538-0496
    		BUSINESS PHONE:		866-410-8780

    	MAIL ADDRESS:
    		STREET 1:		215 S CASCADE ST
    		STREET 2:		PO BOX 496
    		CITY:			FERGUS FALLS
    		STATE:			MN
    		ZIP:			56538-0496

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Otter Tail Holding Co
    		DATE OF NAME CHANGE:	20090618
    </SEC-HEADER>
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    Document 2 - file: charlessmacfarlane.jpg

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    Document 3 - file: chuckpica.jpg

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    Document 5 - file: fritze_pica.jpg

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    Document 6 - file: g864412g06z79.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 7 - file: independence_piecharta.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 8 - file: johnderickson.jpg

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    Document 9 - file: johnson_pica.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 12 - file: m_andxaxpica.jpg

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    Document 15 - file: nathanpic.jpg

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    Document 17 - file: ottertailcorporation_vsmvxa.jpg

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    Document 18 - file: serviceterritory_piecharta.jpg

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    <SEQUENCE>21
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    <DESCRIPTION>GRAPHIC
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    Document 21 - file: tenure_piecharta.jpg

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    <SEQUENCE>22
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    <DESCRIPTION>GRAPHIC
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    Document 22 - file: thomasjwebb.jpg

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    Document 23 - file: utility_pica.jpg

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