Royaume-Uni
Îles commençant par c
- Cairn na Burgh Beg
- Cairn na Burgh More
- Calf of Eday
- Calf of Flotta
- Calf of Linga
- Calva More
- Calvay
- Calve Island
- Canna Island
- Canvey Island
- Cara Island
- Carcraig
- Cardigan Island
- Carna Island
- Carrickarade Island
- Castle Island
- Castle Island
- Causamul
- Cava
- Ceann Ear
- Ceann Iar
- Ceardach
- Chiswick Eyot
- Clairinsh
- Clett
- Clett
- Coiresa
- Coll Island
- Colonsay
- Colsay Island
- Coney Island
- Copeland Island
- Copinsay
- Coppay
- Coquet Island
- Corn Holm
- Corporation Island
- Corr Eilean
- Craigenroan
- Craigleith
- Cramond Island
- Craro Island
- Creag Island
- Creinch
- Crow Island
- Cuckoo