Reino Unido
Países del mundo
C
- (Isles of Scilly) Crow Island
- (North Yorkshire) Cuckoo
- (Argyll and Bute) Cairn na Burgh Beg
- (Argyll and Bute) Cairn na Burgh More
- (Pembrokeshire) Caldey Island
- (Orkney Islands) Calf of Eday
- (Orkney Islands) Calf of Flotta
- (Shetland Islands) Calf of Linga
- (Highland) Calva More
- (Eilean Siar) Calvay
- (Argyll and Bute) Calve Island
- (Highland) Canna Island
- (Argyll and Bute) Cara Island
- (Fife) Carcraig
- (Highland) Carna Island
- (Eilean Siar) Causamul
- (Orkney Islands) Cava
- (Eilean Siar) Ceann Iar
- (Argyll and Bute) Coll Island
- (Argyll and Bute) Colonsay
- (Shetland Islands) Colsay Island
- (Orkney Islands) Copinsay
- (Eilean Siar) Coppay
- (Northumberland) Coquet Island
- (Orkney Islands) Corn Holm
- (Moray) Craigenroan
- (East Lothian) Craigleith
- (City of Edinburgh) Cramond Island
- (Argyll and Bute) Creag Island
- (Highland) Eilean Donnan