Wardensville is a town in Hardy County, West Virginia, United States. The population was 271 at the 2010 census. Originally named Trout Run, Wardensville was chartered in Virginia in 1832 and incorporated in West Virginia in 1879. It is named for the town's first merchant. It is home to Trout Pond, which is the largest natural lake in West Virginia.
In the 1820 United States Census, the population center of the United States was recorded as being about 3 miles northeast of the town.