The 1948 Wisconsin gubernatorial election was held on November 2, 1948.
Incumbent Republican Governor Oscar Rennebohm defeated Democratic nominee Carl W. Thompson with 54.09% of the vote.
Primary election
Primary elections were held on September 21, 1948.
Republican party
Candidates
- Ralph M. Immell, former Wisconsin Adjutant General (1923–1946) and unsuccessful candidate for Republican nomination for governor in 1946
- Oscar Rennebohm, incumbent Governor
Democratic party
Candidates
- William D. Carroll, former State Senator
- Carl W. Thompson, attorney
People's Progressive party
Candidates
- Henry J. Berquist, candidate for lieutenant governor in 1942
Candidates
- Walter H. Uphoff, candidate for governor in 1946
General election
Candidates
Major party candidates
- Carl W. Thompson, Democratic
- Oscar Rennebohm, Republican
Other candidates
- Henry J. Berquist, People's Progressive
- James E. Boulton, Socialist Workers, industrial worker, candidate for Mayor of Milwaukee in March 1948
- Georgia Cozzini, Socialist Labor, candidate for governor in 1942 and 1944
- Walter H. Uphoff, Social-Democratic
Results by county
Counties that flipped from Democratic to Republican
- Ashland
- Bayfield
- Racine
- Vilas
Counties that flipped from Republican to Democratic
- Dane
- Milwaukee
- Portage
- Sheboygan