- Clifford Island
- Clubbing Rocks
- Cove Island
- Cross Island
- Crowley Rock
- Cantwell
- Chalkyitsik
- Chefornak
- Chenega (historical)
- Chevak
- Chickaloon
- Chicken
- Chignik
- Chignik Lake
- Chiniak
- Chistochina
- Chitina
- Chuathbaluk
- Clam Gulch
- Clarks Point
- Coffman Cove
- Cohoe
- Cold Bay
- Coldfoot
- College
- Cooper Landing
- Copper Center
- Copperville
- Covenant Life
- Crooked Creek