The 2008 Kentucky Senate election was held on November 4, 2008. The Republican and Democratic primary elections were held on May 20. Half of the senate (all odd-numbered seats) was up for election. Prior to the election 22 seats were held by Republicans and 15 were held by Democrats, while one was held by Independent senator Bob Leeper, who caucused with the Republicans. Republicans maintained their majority in the chamber, without gaining or losing any seats.
Seats where the margin of victory was under 10%: