- Clio (S.C.)8
- Clio, Marlboro County, South Carolina, United States10
- Clio, South Carolina5
- Closter10
- Clovelly (England)11
- Clover (S.C.)9
- Clover, York County, South Carolina, United States7
- Clubb Mountain, Lincoln County, North Carolina, United States8
- Clydesdale (Scotland)1
- Co?te d'Azur (France)1
- Coachella Valley (Calif.)1
- Coast of Morbihan, Brittany, France2
- Coatesville (Pa.)1
- Coati Island (Bolivia)1
- Cochiti (N.M.)1
- Cochran (Ga.)1
- Cockspur Island, Chatham County, Georgia, United States1
- Coconino National Forest (Ariz.)1
- Cody (Wyo.)2
- Cohasset Beach, Norfolk County, Massachusetts, United States1