Place
- Cardiganshire, Wales1
- Cardynham, Cornwall1
- Carlisle, England1
- Carmac, Brittany1
- Carnaby (?), Yorkshire1
- Carnac, Bretagne1
- Carnanmore, Antrim1
- Castle Martin, Pembrokeshire1
- Castlewellan, Down1
- Cawfield, Northumberland1
- Cenarth, Carmarthenshire1
- Chaddesley Corbett, Worcestershire1
- Channel Islands, United Kingdom1
- Checkley, Staffordshire1
- Cheriton, Glamorganshire1
- Cherrington, Wiltshire1
- Chester-le-Street, Durham1
- Childrey, Berkshire1
- Chollerford, Northumberland1
- Chysauster, Cornwall1