The 2010 Wisconsin gubernatorial election took place on November 2, 2010, to elect the governor and lieutenant governor of Wisconsin. The primary elections on September 14 determined which candidates advanced to the general election. Incumbent Democratic governor Jim Doyle did not seek re-election in 2010, making for the first open gubernatorial election in Wisconsin since 1982. Republican nominee Scott Walker, the Milwaukee County Executive, defeated Democratic nominee Tom Barrett, the mayor of Milwaukee. As of 2022, this was the last gubernatorial election in which a Republican gubernatorial candidate carried La Crosse and Columbia counties, and the last in which a Democratic candidate carried Trempealeau County.

Democratic primary

Governor

Candidates

Failed to qualify

Results

Lieutenant governor

Candidates

Results

Republican primary

Governor

Candidates

Failed to qualify

Polling

Results

[Results by county:

{{legend|#d40000|Walker—70–80%}} {{legend|#cc2f4a|Walker—60–70%}} {{legend|#e27f90|Walker—50–60%}} {{legend|#f2b3be|Walker—40–50%}} {{legend|#ffb380|Neumann—40–50%}} {{legend|#ff9955|Neumann—50–60%}} | upload.wikimedia.org/wikipedia/commons/3/32/Wisconsin///Governor///Republican///primary%2C///2010.svg]

Lieutenant governor

Candidates

Results

Libertarian primary

Governor

There were no qualified candidates in the Libertarian gubernatorial primary.

Lieutenant governor

Candidates

Results

Independent nominations

Candidates

Failed to qualify

Results

General election

Candidates

Seven candidates appeared on the primary election ballot: two Democrats, three Republicans and two other candidates. After Walker and Barrett won their respective primaries, they faced each other and independent candidates using the "Independent" and "Common Sense" labels in the November general election.

Predictions

Polling

Results

Results by county

Counties that flipped Democratic to Republican