Place
- County Durham, England1
- Courconno (?), Brittany1
- Coët-a-Touse, Brittany1
- Craigiehill, Linlithgow1
- Craigmadden Castle, Scotland1
- Craigs, Antrim1
- Crayford, Kent1
- Criggieth, Carmarthenshire1
- Cromar, Aberdeenshire1
- Croy, Invernesshire1
- Cushendall, Antrim1
- Dartmoor Forest, Devon1
- Deerpark, Sligo1
- Denbeath, Fifeshire1
- Denmark, Europe1
- Dinan, Brittany1
- Doonan Fort, Antrim1
- Dordogne, France1
- Down Tor, Devon1
- Dowth, Meath1