Cacapon ( /kəˈkeɪpən/kə-KAY-pən) is a term of Native American origin that means "medicine waters." Most placenames named Cacapon or the variation of Capon are named for the Cacapon River in West Virginia's Eastern Panhandle, United States.
- Cacapon Mountain is a Ridge-and-valley Appalachians mountain in Morgan and Hampshire Counties, West Virginia
- Cacapon Resort State Park is a West Virginia state park in Morgan County, West Virginia
- Cacapon River is a river, tributary of the Potomac River
- Capon Bridge, West Virginia is an incorporated town in Hampshire County, West Virginia
- Capon Chapel is a historic church (1750s) near Capon Bridge in Hampshire County, West Virginia
- Capon District is a magisterial district in Hampshire County, West Virginia
- Capon District is a magisterial district in Hardy County, West Virginia
- Capon Furnace, West Virginia is an unincorporated hamlet in Hardy County, West Virginia
- Capon Lake, West Virginia is an unincorporated hamlet in Hampshire County, West Virginia
- Capon Run is a stream in Rockingham County, Virginia and Hardy County, West Virginia
- Capon Springs, West Virginia is an unincorporated hamlet in Hampshire County, West Virginia
- Capon Springs Run is a stream in Hampshire County, West Virginia, tributary of the Cacapon River
- Capon Springs Station, West Virginia is a former station on the Winchester and Western Railroad in Hampshire County, West Virginia
- Forks of Cacapon is an unincorporated hamlet in Hampshire County, West Virginia
- Fort Capon is a French and Indian War era fort located at Forks of Cacapon, Hampshire County, West Virginia
- Great Cacapon, West Virginia is an unincorporated hamlet in Morgan County, West Virginia