United States gubernatorial elections were held in three states in 2015 as part of the 2015 United States elections. In Kentucky and Mississippi, the elections were held on November 3, and in Louisiana, as no candidate received a majority of votes at the primary election on October 24, 2015, a runoff election was held on November 21. The last regular gubernatorial elections for all three states were in 2011. Democrats picked up the open seat of term-limited Republican Bobby Jindal in Louisiana, while Republicans re-elected incumbent Phil Bryant in Mississippi and picked up the seat of term-limited Democrat Steve Beshear in Kentucky.

The 2015 Kentucky gubernatorial election took place on November 3, 2015. Incumbent Democratic Governor Steve Beshear was ineligible to run for a third term due to term limits. Primary elections were held on May 19, 2015.