- Ansley Island
- Anthony Island
- Anton Larsen Island
- Antones Island
- Anugnak
- Anyaka Island
- Apokak
- Apple Islands
- Applegate Island
- Applegate Rock
- Arboles Island
- Arbor Island
- Arcada Rock
- Arch Rock
- Arch Rock
- Arctic Island
- Arey Island
- Argo Island
- Argonne Island
- Arguello Island
- Ariadne Island
- Arnkil Island
- Arolokovik
- Arrecife Islands
- Artesian Village
- Arthur Island
- Arwirnuk Rock
- Ashiiak Island
- Aston Island
- Asuksak Island