The 1920 Wisconsin gubernatorial election was held on November 2, 1920. Primary elections were held on September 7, 1920.
Republican candidate John J. Blaine won the election with 52.98% of the vote, winning his first of three terms as Governor of Wisconsin. Blaine defeated Democratic Party candidate Robert McCoy, Socialist candidate William Coleman and Prohibition Party candidate Henry H. Tubbs.
McCoy was the first Democrat to ever win Rock County. He was also the first Democrat since Nelson Dewey in 1848 to win Walworth County and the first since George W. Peck in 1892 to win Oneida County.