Lewis County is a county located in the U.S. state of Tennessee. As of the 2020 census, the population was 12,582. Its county seat is Hohenwald. The county is named for explorer Meriwether Lewis, who died and was buried at Grinder's Stand near Hohenwald in 1809.

Hohenwald is a city in and the county seat of Lewis County, Tennessee. The population was 3,757 at the 2010 census. The name "Hohenwald" derives from German meaning “High Forest".