Karl Fritjof Rolvaag (1913 - 1990) was a U.S politician. He served as the 31st Governor of Minnesota from March 25,1963 to January 2,1967 as a Democrat.

The 1962 election was held November 6, 1962, but the results were not known until March 21, 1963 because of a recount. With almost 1.3 million votes cast for governor, Rolvaag won by 91 votes (0.07%) over Elmer Lee Andersen.