The 1970 Minnesota Secretary of State election was held on 3 November 1970 in order to elect the Secretary of State of Minnesota. Republican nominee and incumbent member of the Minnesota House of Representatives Arlen Erdahl defeated Democratic–Farmer–Labor nominee Daniel D. Donovan.
General election.
On election day, 3 November 1970, Republican nominee Arlen Erdahl won the election by a margin of 10,141 votes against his opponent Democratic–Farmer–Labor nominee Daniel D. Donovan, thereby gaining Republican control over the office of Secretary of State. Erdahl was sworn in as the 18th Minnesota Secretary of State on 4 January 1971.
Results.
! scope="col" colspan="2" style="width: 15em" |Party
! scope="col" style="width: 17em" |Candidate
! scope="col" style="width: 5em" |Votes
! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align:right;" | Total votes
References.
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