Morgan County is a county located in the U.S. state of West Virginia. As of the 2020 census, the population was 17,063. Its county seat is Berkeley Springs. The county was formed in 1820 from parts of Hampshire and Berkeley Counties and named in honor of General Daniel Morgan, prominent soldier of the American Revolutionary War. The county and town of Bath are considered an excellent jumping off point for exploring the Potomac and Cacapon Rivers valleys just to the north and west. Along with also being a tourist destination hosting numerous local artists, mineral water spas, and a large amount of outdoor recreation that includes fishing, boating, wildlife, hunting, and mountain scenery. The region is known for the famed Apple Butter Festival held annually in October. Morgan County is also the home of an important silica mine, part of U.S. Silica.

Berkeley Springs is a town in, and the county seat of, Morgan County, West Virginia, United States, in the state's Eastern Panhandle. Berkeley Springs is also commonly used to refer to the area in and around the Town of Bath. In 1776, the Virginia Legislature incorporated a town around the springs and named it Bath. Since 1802, it has been referred to by the name of its original post office, Berkeley Springs. The population was 758 at the 2020 census. It is part of the Hagerstown–Martinsburg metropolitan area.