Tennessee's 10th Senate district is one of 33 districts in the Tennessee Senate. It has been represented by Republican Todd Gardenhire since 2012, succeeding Democrat Andy Berke.
District 10 is based in part of Hamilton County and part of Chattanooga, covering most of the city proper. The district includes the counties of Bledsoe, Marion, Sequatchie Counties.
The district is located largely within Tennessee's 4th congressional district, with the Chattanooga portion in the 3rd district. It borders the state of Georgia.
Tennessee Senators are elected to staggered four-year terms, with odd-numbered districts holding elections in midterm years and even-numbered districts holding elections in presidential years.
Gardenhire became the first Republican to represent District 10 in four decades.