Place
- Cliff-at-Hoo, Kent1
- Cliffe, Kent1
- Coblenz, Germany1
- Colombs, the diocese of Chartres1
- Compiègne, France1
- Condom, France1
- Constantia, Phoenicia1
- Conway, Caernarfonshire1
- Corsham, Wiltshire1
- County Durham, England1
- Courtrai, West Flanders1
- Cranbrook, Kent1
- Crediton, Devon1
- Criccieth, Caernarfonshire1
- Cricklade, Wiltshire1
- Croydon, Surrey1
- Crépy-en-Valois, France1
- Cullen, Banffshire1
- Cumbrae, Scotland1
- Cyprus, Europe1