- Catalina Island
- Cathedral Island
- Cathedral Rapids
- Cathedral Rocks
- Catherine Island
- Caton Island
- Caution Island
- Cave Rock
- Cedar Island
- Cedar Island
- Cedar Island
- Cenotaph Island
- Center Island
- Center Island
- Center Islets
- Central
- Central Island
- Chagnagix
- Chagulak Island
- Chaichei Islands
- Chaika Rock
- Chakaktolik
- Chakwaktolik
- Chalkyitsik
- Challenge Island
- Chaloo'ga Rocks
- Chamisso Island
- Chandalar
- Change Island
- Chaniliut