<SEC-DOCUMENT>0001193125-20-080349-index.html : 20200320
<SEC-HEADER>0001193125-20-080349.hdr.sgml : 20200320
<ACCEPTANCE-DATETIME>20200320124257
ACCESSION NUMBER:		0001193125-20-080349
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20200320
DATE AS OF CHANGE:		20200320
EFFECTIVENESS DATE:		20200320

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-53713
		FILM NUMBER:		20731148

	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>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>d882407ddefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: d882407ddefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g882407g06z79.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g882407g06z79.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g882407g94j40.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g882407g94j40.jpg

</DOCUMENT>
</SEC-DOCUMENT>