1966 Minnesota Secretary of State election

The 1966 Minnesota Secretary of State election was held on November 8, 1966, in order to elect the Secretary of State of Minnesota. [Minnesota Minnesota Democratic–Farmer–Labor Party|Democratic–Farmer–Labor Party|Democratic–Farmer–Labor] nominee and incumbent Secretary of State Joseph L. Donovan defeated Republican nominee and incumbent member of the Minnesota House of Representatives for the 45th District William J. O'Brien.

General election

On election day, November 8, 1966, Democratic–Farmer–Labor nominee Joseph L. Donovan won re-election by a margin of 127,359 votes against his opponent Republican nominee William J. O'Brien, thereby retaining Democratic–Farmer–Labor control over the office of Secretary of State. Donovan was sworn in for his sixth term on January 2, 1967.