The 2006 Tennessee gubernatorial election took place on November 7, 2006, to elect the governor of Tennessee, alongside other state and local elections. IncumbentDemocratic governor Phil Bredesen was re-elected to a second term with 68.6% of the vote, defeating his Republican challenger Jim Bryson. Improving on his performance from 2002, Bredesen also carried every county in the state.
As of 2024, this was the last time a Democrat won a majority of counties in the state, the last time a Democrat won any statewide race in Tennessee, and the most recent statewide election in Tennessee in which 88 of the state's 95 counties, including Knox County and Hamilton County, went to the Democratic candidate. Only Davidson, Shelby, Haywood, Hardeman, Houston, Jackson, and Lake counties have voted for a Democratic candidate in a presidential, Senate, or gubernatorial race since 2006. Eight years after this, Republican governor Bill Haslam would win every county in the state when he won re-election. This marked a sharp political shift in Tennessee.