- Caen (France)2
- Caesar's Head (S.C.)7
- Caesar's Head State Park (S.C.)1
- Caesars Head, Greenville County, South Carolina, United States1
- Cahaba, Dallas County, Alabama, United States1
- Cairo (Egypt)35
- Cairo (Ill.)2
- Cairo, Egypt2
- Cairo, Grady County, Georgia, United States2
- Calais (France)1
- Calais, France3
- Calaveras County (Calif.)1
- Calaveras River, Calaveras County, California, United States1
- Caldbeck Fells, Cumberland, Cumbria, England, United Kingdom1
- Caldwell Parish (La.)1
- Calexico (Calif.)1
- Calgary, Alberta, Canada2
- Calhoun (S.C.)3
- Calhoun (SC)17
- Calhoun County56