- Castle Carrock
- Castle Cary
- Castle Combe
- Castle Donington
- Castle Eaton
- Castle Eden
- Castle Frome
- Castle Hedingham
- Castle Howard
- Castle Rising
- Castleford
- Castlemorton
- Castleside
- Caston
- Catcleugh
- Catcliffe
- Caterham
- Catfield
- Catherington
- Caton
- Catsfield
- Cattal
- Catterall
- Catterick
- Catterick Camp
- Catthorpe
- Catton
- Catwick
- Catworth
- Coulderton