Bath County is a United States county on the central western border of the Commonwealth of Virginia, on the West Virginia state line. As of the 2020 census, the population was 4,209, the second-least populous county in Virginia. Bath's county seat is Warm Springs.

Warm Springs is a census-designated place (CDP) in and the county seat of Bath County, Virginia, United States. The population as of the 2010 census was 123. It lies along U.S. Route 220 near the center of the county. Warm Springs includes the historical mill town called Germantown. To the west lies West Warm Springs.