- Adugak Island
- Agatax
- Agattu Island
- Agligadak Island
- Agusux
- Agux
- Akuchin Rocks
- Alaid Island
- Alax Hatam-tanasuu
- Alim-tanakix
- Alixtax
- Amaknak Island
- Amatignak Island
- Isla Amchitka
- Amchitka Island
- Amgasis
- Amlia Island
- Amtagis Islands
- Amugam-tangingin
- Amukta Island
- Anagaksik Island
- Anamxix
- Anangula Island
- Islas Andreanof
- Anglamax
- Angusxus
- Angyam-tanasuu
- Antones Island
- Argonne Island
- Asuksak Island