2020 Tennessee Senate election

The 2020 Tennessee State Senate election was held on November 3, 2020, to elect 16 of the 33 seats for the Tennessee's State Senate. The elections coincided with the Presidential, U.S. Senate, U.S. House, and State House elections. The primary elections were held on August 6, 2020, with the exception of presidential primaries held on March 3 of that year.

Republicans lost District 20, which is in the outskirts of Nashville in Davidson County.

Retirements
One incumbent did not run for re-election in 2020. That incumbent was:

Republicans

 * 1) District 26: Dolores Gresham: Retiring

Republicans

 * 1) District 20: Steven Dickerson lost to Heidi Campbell.

Close races
Two races were decided by a margin of under 10%: