Production place
- Chios Island, Aegean Islands, Greece2
- Chongqing municipality, Southwest China3
- Civita Lavinia (ancient name), Lazio, Central Italy1
- Cleitor, Arcadia, Peloponnese1
- Cliff House, San Francisco, California1
- Cobridge, Stoke-on-Trent, Staffordshire, England9
- Cochiti Pueblo, Sandoval County, New Mexico1
- Colma, San Mateo County, California1
- Cologne, North Rhine-Westphalia, Germany3
- Colombia1
- Colorado2
- Columbia River, Oregon and Washington1
- Columbus, Franklin County, Ohio1
- Commagene (ancient kingdom), Southeast Anatolia, Turkey1
- Constantinople (ancient city)64
- Corduba (ancient place), Hispania Ulterior8
- Corinth, Peloponnese, Greece6
- Corning, Steuben County, New York2
- Cote d'Ivoire26
- Croatia1