- Aaron Island
- Abalone Island
- Abbess Island
- Abraham Islands
- Abraham Islet
- Abrejo Rocks
- Acorn Rock
- Adak Island
- Adams Island
- Admiralty Island – Skagway-Hoonah-Angoon Census Area
- Adugak Island
- Afognak Island - Kodiak Island Borough
- Agattu Island
- Aghik Island
- Aghiyuk Island
- Agligadak Island
- Aguchik Island
- Aguliak Island
- Aguligik Island
- Ahnowiksat Rocks
- Aiaktalik Island
- Aikens Rock
- Aiktak Island
- Akhiok Island
- Akuchin Rocks
- Akun Island
- Akusha Island
- Akutan Island
- Alaid Island
- Alargate Rocks
- Alaska Island
- Alberto Islands
- Aleks Rock
- Aleutian Islands
- Aleutika Island
- Aleutski Island
- Alexander Archipelago
- Alexander Island
- Alf Island
- Alice Island
- Aliksemit Island
- Alligator Island
- Alma Island
- Almguist Rock
- Althorp Rock
- Amagat Island
- Amak Island
- Amaknak Island
- Amatignak Island
- Amchitka Island
- Amee Island
- Amelius Island
- Amik Island
- Amlia Island
- Ammunition Island
- Amook Island
- Amtagis Islands
- Amukta Island
- Anachlik Island
- Anagaksik Island
- Anangula Island
- Anchor Island
- Andersen Island
- Anderson
- Andreanof Islands
- Andrew Island
- Andronica Island
- Anguilla Island
- Anguk Island
- Anguvik Island
- Aniktun Island
- Animas Island
- Annette Island
- Anowik Island
- Ansley Island
- Anthony Island
- Antones Island
- Anyaka Island
- Apple Islands
- Applegate Island
- Applegate Rock
- Arboles Island
- Arbor Island
- Arcada Rock
- Arch Rock – Aleutians East Borough
- Arch Rock – Aleutians West Census Area
- Arch Rock – Kenai Peninsula Borough
- Arctic Island
- Ardiguen
- Arey Island
- Argo Island
- Argonne Island
- Arguello Island
- Ariadne Island
- Arnkil Island
- Arrecife Islands
- Arthur Island
- Arwirnuk Rock
- Ashiiak Island
- Aston Island
- Asuksak Island
- Ataku Island
- Atka Island
- Atkins Island
- Atkulik Island
- Atniliak Island
- Atsakirak Mound
- Attu Island
- Augustine Island
- Avatanak Island
- Avogon Island
- Avon Island
- Axel Lind Island
- Ayakulik Island
- Aziak Island
- Babe Islands
- Baby Islands
- Back Island
- Bainbridge Island
- Baird Island
- Baker Island
- Balandra Island
- Bald Head Chris Island
- Ball Islets
- Ballast Island
- Ballena Islands
- Bamdoroshni Island
- Ban Island
- Barabara Island
- Baranof Archipelago
- Baranof Island
- Barbara Rock
- Bare Island - Kodiak Island Borough
- Bare Island - Sitka Borough
- Bare Island - Skagway-Hoonah-Angoon Census Area
- Barlow Island - Lat. - 58.392°N/Lon. - 134.900°W, Juneau, Skagway-Hoonah-Angoon Census Area
- Barlow Islands - Lat. - 58.393°N/Lon. - 134.905°W, Juneau, Skagway-Hoonah-Angoon Census Area
- Barrel Island
- Barren Islands - Prince of Wales-Outer Ketchikan Census Area
- Barren Island - Kodiak Island Borough
- Barren Islands - Yukon-Koyukuk Census Area
- Barrie Island
- Barrier Island - Lat. - 56.217°N/Lon. - 133.667°W, Petersburg, Prince of Wales-Outer Ketchikan Census Area
- Barrier Islands - Lat. - 56.213°N/Lon. - 133.662°W, Petersburg, Prince of Wales-Outer Ketchikan Census Area
- Barrier Islands - Dixon Entrance, Prince of Wales-Outer Ketchikan Census Area
- Bart Island
- Barter Island
- Bartlett Island
- Barwell Island
- Basalt Rock
- Basco Island
- Base Island
- Bashmakoff Rocks
- Basset Island
- Bat Island
- Battery Island
- Battery Islets
- Battleship Island
- Bay Islands
- Beacon Island
- Bean Island
- Bear Bay Island
- Bear Island - Afognak, Kodiak Island Borough
- Bear Island - Karluk, Kodiak Island Borough
- Bear Island - Kenai Peninsula Borough
- Bear Island - Lake and Peninsula Borough
- Bear Island - Northwest Arctic Borough
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- Bear Island - Valdez-Cordova Census Area
- Bear Island - Yakutat Borough
- Bear Rock
- Beardslee Islands - Sitka Borough
- Beardslee Islands - Skagway-Hoonah-Angoon Census Area
- Beartrack Island
- Beauchamp Island - Sitka Borough
- Beauchamp Island - Wrangell-Petersburg Census Area
- Beauclerc Island
- Beautiful Isle
- Beavertail Island
- Beck Island - Prince of Wales-Outer Ketchikan Census Area
- Beck Island - Wrangell-Petersburg Census Area
- Beck Rock
- Beehive Island - Kenai Peninsula Borough
- Beehive Island - Sitka Borough
- Belknap Islands
- Bell Island - Matanuska-Susitna Borough
- Bell Island - Ketchikan, Prince of Wales-Outer Ketchikan Census Area
- Bell Island - Petersburg, Prince of Wales-Outer Ketchikan Census Area
- Bell Island - Skagway-Hoonah-Angoon Census Area
- Belvedere Island
- Bendel Island
- Benjamin Island
- Bentley Island
- Bentwood Island
- Berger Island
- Beric Island
- Beringia Novaya
- Berry Island - Prince of Wales-Outer Ketchikan Census Area
- Berry Island - Sitka Borough
- Berry Island - Wrangell-Petersburg Census Area
- Bertoncini Island
- Besboro Island
- Bettles Island
- Betton Island
- Betty Island
- Beulah Island
- Biali Rock
- Bibora Island
- Big Bowlder
- Big Branch Rock
- Big Castle Island
- Big Eightmile Island
- Big Fort Island
- Big Gavanski Island
- Big Hazy Islet
- Big Island - Lake and Peninsula Borough
- Big Island - Matanuska-Susitna Borough
- Big Island - Sitka Borough
- Big Island - Lat. - 64.700°N/Lon. - 156.000°W, Nulato, Yukon-Koyukuk Census Area
- Big Island - Lat. - 64.759°N/Lon. - 157.958°W, Nulato, Yukon-Koyukuk Census Area
- Big Island - Ruby, Yukon-Koyukuk Census Area
- Big Koniuji Island
- Big Level Island
- Big Rock
- Big Rose Island
- Big Saltery Island
- Biorka Island
- Birch Island
- Bird Island - Aleutians East Borough
- Bird Island - Aleutians West Census Area
- Bird Island - Juneau Borough
- Bird Island - Kodiak Island Borough
- Bird Island - Prince of Wales-Outer Ketchikan Census Area
- Bird Rock - Aleutians East Borough
- Bird Rock - Aleutians West Census Area
- Bird Rock - Bethel Census Area
- Bird Rock - Kodiak Island Borough
- Birdsall Island
- Bishop Rock Island
- Black Island - Aleutians West Census Area
- Black Island - Ketchikan Gateway Borough
- Black Island - North Slope Borough
- Black Island - Prince of Wales-Outer Ketchikan Census Area
- Black Island - Sitka Borough
- Black Rock - Aleutians East Borough
- Black Rock - Aleutians West Census Area
- Black Rock - Haines Borough
- Black Rock - Dixon Entrance, Prince of Wales-Outer Ketchikan Census Area
- Black Rock - Ketchikan, Prince of Wales-Outer Ketchikan Census Area
- Black Rock - Lat. - 55.873°N/Lon. - 133.762°W, Craig, Prince of Wales-Outer Ketchikan Census Area
- Black Rock - Lat. - 55.025°N/Lon. - 133.063°W, Craig, Prince of Wales-Outer Ketchikan Census Area
- Blackbird Island
- Blackburn Island
- Blacksand Island
- Blade Island
- Blake Island
- Blank Islands
- Blanket Island
- Blanquizal Islands
- Blashke Islands
- Bligh Island
- Blind Island - Wade Hampton Census Area
- Blind Island - Wrangell-Petersburg Census Area
- Block Island - Prince of Wales-Outer Ketchikan Census Area
- Block Island - Lat. - 60.524°N/Lon. - 147.609°W, Seward, Valdez-Cordova Census Area
- Block Island - Lat. - 60.970°N/Lon. - 147.394°W, Seward, Valdez-Cordova Census Area
- Blodgett Island
- Blowdown Island
- Blue Jay Rock
- Bluefish Island - Lat. - 61.617°N/Lon. - 162.000°W, Marshall, Undetermined
- Bluefish Island - Lat. - 61.585°N/Lon. - 162.034°W, Marshall, Wade Hampton Census Area
- Bluff Island - Lat. - 56.105°N/Lon. - 133.671°W, Petersburg, Prince of Wales-Outer Ketchikan Census Area
- Bluff Island - Lat. - 56.168°N/Lon. - 132.885°W, Petersburg, Prince of Wales-Outer Ketchikan Census Area
- Boat Rock
- Bobrof Island
- Bocharov Island
- Bodfish Island
- Bogoslof Island
- Boidarkin Island
- Bold Island - Ketchikan Gateway Borough
- Bold Island - Wrangell-Petersburg Census Area
- Bolshoi Island
- Bolshoi Islands
- Bonasila Island
- Border Rocks
- Borlase Rock
- Boswell Rock
- Botinski Island
- Boulder Island
- Bourbon Mist Island
- Box Island - Aleutians West Census Area
- Box Island - Valdez-Cordova Census Area
- Boy Scout Island
- Brady Island
- Brant Island
- Breadloaf Island
- Breaker Number Two
- Breast Island
- Broad Island
- Brockman Island
- Bronaugh Islands
- Brother Islands
- Brown Bear Head Island
- Brown Rock
- Brownson Island
- Buck Island - Aleutians West Census Area
- Buck Island - Skagway-Hoonah-Angoon Census Area
- Bug Island - Ketchikan Gateway Borough
- Bug Island - Skagway-Hoonah-Angoon Census Area
- Buldir Island
- Bull Island - Ketchikan Gateway Borough
- Bull Island - Yukon-Koyukuk Census Area
- Bullfrog Island
- Bun Rock
- Burns Island
- Burnt Island
- Byers Island
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