This article features a list of islands sorted by their name beginning with the letter B.
{{dynamic list}}{{A-Z multipage list|format=()|List of islands by name}}| Island’s Name | Island group(s) | Country/Countries | |
| Bacelos | Alentejo Islands, Alentejo | Portugal}} |
| Bacelos Pequena | Alentejo Islands, Alentejo | Portugal}} |
| Badgely | Ontario}} | Canada}} |
| Badger Island | Utah}} | United States}} |
| Badger | New Hampshire}} | United States}} |
| Baffin | Nunavut}} | Canada}} |
| Bågø | Islands of the Little Belt | Denmark}} |
| Bahrain Island | Persian Gulf | Bahrain}} |
| Baillie-Hamilton | Nunavut}} | Canada}} |
| Bainbridge | Washington}} | United States}} |
| Baker | Pennsylvania}} | United States}} |
| Bald Eagle | Pennsylvania}} | United States}} |
| Baleal | Estremadura islands | Portugal}} |
| Bali | Lesser Sunda Islands | Indonesia}} |
| Balta | Shetland Islands}} | Scotland}} |
| Baltrum | East Frisian Islands | Germany}} |
| Baluan | Admiralty Islands | Papua New Guinea}} |
| Bananec | Glénan islands | France}} |
| Banfills | Minnesota}} | United States}} |
| Bangaram | Lakshadweep | India}} |
| Banks | Northwest Territories}} | Canada}} |
| Baranof | Alaska}} | United States}} |
| Barbadoes | Pennsylvania}} | United States}} |
| Barbados | Lesser Antilles | Barbados}} |
| Bardwell | Illinois}} | United States}} |
| Barents Island | Svalbard | Norway}} |
| Barentsøya | Svalbard | Norway}} |
| Barkis | Illinois}} | United States}} |
| Barnes | Washington}} | United States}} |
| Barnston | British Columbia}} | Canada}} |
| Barra | Outer Hebrides | Scotland}} |
| Barren | Falkland Islands}} | United Kingdom}} |
| Barren | Ontario}} | Canada}} |
| Barreta | Algarve islands | Portugal}} |
| Barrie | Ontario}} | Canada}} |
| Barrier | Ontario}} | Canada}} |
| Barro | Algarve islands | Portugal}} |
| Barsø | Islands of the Little Belt | Denmark}} |
| Barter | Alaska}} | United States}} |
| Bartlett | Maine}} | United States}} |
| Basse-Terre | Guadeloupe|local}}, Lesser Antilles | France}} |
| Bassett | Ontario}} | Canada}} |
| Bassett | Ontario}} | Canada}} |
| Batanta | Raja Ampat Islands | Indonesia}} |
| Bateau | Ontario}} | Canada}} |
| Bateman | Louisiana}} | United States}} |
| Bateman | Washington}} | United States}} |
| Bathurst | Nunavut}} | Canada}} |
| Batture | Ontario}} | Canada}} |
| Batz | Brittany}} | France}} |
| Bazaruto | Bazaruto Archipelago | Mozambique}} |
| Beacon | Western Australia}} | Australia}} |
| Beacon | Manitoba}} | Canada}} |
| Beacon | Newfoundland and Labrador}} | Canada}} |
| Beacon | Nunavut}} | Canada}} |
| Beacon | Nunavut}} | Canada}} |
| Beacon | Nunavut}} | Canada}} |
| Beacon | Nunavut}} | Canada}} |
| Beacon | Ontario}} | Canada}} |
| Beacon | Ontario}} | Canada}} |
| Beacon | Ontario}} | Canada}} |
| Beacon | Ontario}} | Canada}} |
| Beacon | Ontario}} | Canada}} |
| Beacon | Ontario}} | Canada}} |
| Beacon (now subsided) | North Carolina}} | United States}} |
| Beals | Maine}} | United States}} |
| Beament | Ontario}} | Canada}} |
| Bear | Ontario}} | Canada}} |
| Bear | New Hampshire}} | United States}} |
| Bear | New Hampshire}} | United States}} |
| Bears Back | Ontario}} | Canada}} |
| Bears Rump | Ontario}} | Canada}} |
| Beata | Pedernales | Dominican Republic}} |
| Beauchene | Falkland Islands}} | United Kingdom}} |
| Beaupre | Ontario}} | Canada}} |
| Beauregard | Louisiana}} | United States}} |
| Beaurivage | Ontario}} | Canada}} |
| Beausoleil | Ontario}} | Canada}} |
| Beauty | Ontario}} | Canada}} |
| Beaver | Antarctica |
| Beaver | Falkland Islands}} | United Kingdom}} |
| Beaver | Iowa}} | United States}} |
| Beaver | Ontario}} | Canada}} |
| Beaver | Michigan}} | United States}} |
| Beaver | Michigan}} | United States}} |
| Beaver | Massachusetts}} | United States}} |
| Beaver | New Hampshire}} | United States}} |
| Beaver | Tamaulipas}} | Mexico}} |
| Beaverdam | Arkansas}} | United States}} |
| Beckwith | Ontario}} | Canada}} |
| Belene | Danube River | Bulgaria}} |
| Bell Island | Newfoundland and Labrador}} | Canada}} |
| Belle Île | France}} |
| Belle Isle | Louisiana}} | United States}} |
| Belleau | Ontario}} | Canada}} |
| Bellinghausen | French Polynesia}} | France}} |
| Benbecula | Outer Hebrides | Scotland}} |
| Benguerra | Bazaruto Archipelago | Mozambique}} |
| Bennett | Alaska}} | United States}}, controlled by {{flag|Russia}} |
| Bere | Bantry Bay | Ireland}} |
| Bergmann | Wisconsin}} | United States}} |
| Berlenga Grande | Berlengas | Portugal}} |
| Bermuda | Bermuda}} The Bermuda Islands | United Kingdom}} |
| Big | Nunavut}} | Canada}} |
| Big | Nunavut}} | Canada}} |
| Big | Nunavut}} | Canada}} |
| Big | Ontario}} | Canada}} |
| Big | Ontario}} | Canada}} |
| Big | Ontario}} | Canada}} |
| Big | Ontario}} | Canada}} |
| Big | Ontario}} | Canada}} |
| Big | Ontario}} | Canada}} |
| Big | Louisiana}} | United States}} |
| Big | (Disambiguation page) | Canada}} |
| Big | (Disambiguation page) | United States}} |
| Big Blue | Illinois}} | United States}} |
| Big Burnt | Ontario}} | Canada}} |
| Big Chicken | Ontario}} | Canada}} |
| Bigga | Shetland Islands}} | Scotland}} |
| Bighorn | Nevada}} | United States}} |
| Bigsby | Ontario}} | Canada}} |
| Bigwin | Ontario}} | Canada}} |
| Bikar | Bikar Atoll, Ratak Chain | Marshall Islands}} |
| Bikini | Bikini Atoll | Marshall Islands}} |
| Billingsgate | Massachusetts}} | United States}} |
| Bioko | Gulf of Guinea | Equatorial Guinea}} |
| Birch | New Hampshire}} | United States}} |
| Birch Hill | New Hampshire}} | United States}} |
| Bird | Algoa Bay | South Africa}} |
| Bird | Caribbean Sea | Venezuela}} and {{flag|Dominica}} |
| Bird | Queensland}} | Australia}} |
| Bird | Queensland}} | Australia}} |
| Bird | Seychelles | Seychelles}} |
| Bird | South Georgia and the South Sandwich Islands}} South Georgia | United Kingdom}} |
| Bird | Massachusetts}} | United States}} |
| Bird | Alaska}} | United States}} |
| Bird | Lake Zway | Ethiopia}} |
| Bird Island | Lesser Antilles | Antigua and Barbuda}} |
| Birkholm | Islands of the waters south of Funen | Denmark}} |
| Björkö | Lake Mälaren | Sweden}} |
| Biševo | Adriatic Sea | Croatia}} |
| Bishop Rock | Isles of Scilly | United Kingdom}} |
| Bishop Island | Lesser Antilles | Antigua and Barbuda}} |
| Bitra | Lakshadweep | India}} |
| Bjørnø | Islands of the waters south of Funen | Denmark}} |
| Bjørnøya | Svalbard | Norway}} |
| Black | Ontario}} | Canada}} |
| Black Fox | Pennsylvania}} | United States}} |
| Black Prince | Louisiana}} | United States}} |
| Black Rock |
| Blake Island | Lesser Antilles | Antigua and Barbuda}} |
| Blakeley | Alabama}} | United States}} |
| Blakely | Washington}} | United States}} |
| Blaker Towhead | Tennessee}} | United States}} |
| Blanchard | Illinois}} | United States}} |
| Bleaker | Falkland Islands}} | United Kingdom}} |
| Bleanish | Lough Erne | Ireland}} |
| Blennerhassett | West Virginia}} | United States}} |
| Blind | Washington}} | United States}} |
| Block | Rhode Island}} | United States}} |
| Blueberry Island | Ontario}} | Canada}} |
| Boega | Minho islands | Portugal}} |
| Bogø | Baltic Sea | Denmark}} |
| Bogoslof Island | Alaska}} | United States}} |
| Bois Blanc | Ontario}} | Canada}} |
| Bois Blanc | Michigan}} | United States}} |
| Bokak Atoll | Ratak Chain | Marshall Islands}} |
| Bokissa | Pacific Ocean | Vanuatu}} |
| Bolama | Bissagos Islands | Guinea-Bissau}} |
| Bolivar | Texas}} | United States}} |
| Bolter | Illinois}} | United States}} |
| Bømlo | Norway}} |
| Bonaire}} | Lesser Antilles | Netherlands}} |
| Bonanza | Ontario}} | Canada}} |
| Bone | Ontario}} | Canada}} |
| Bonhomme | Missouri}} | United States}} |
| Bonnet Carre | Louisiana}} | United States}} |
| Bora Bora | French Polynesia}} | France}} |
| Borden | Nunavut}} | Canada}} |
| Borðoy | Faroe Islands}} | Denmark}} |
| Borkum | East Frisian Islands | Germany}} |
| Borneo | Malay archipelago | Indonesia}}, {{flag|Malaysia}}, and {{flag|Brunei}} |
| Bornholm | Baltic Sea | Denmark}} |
| Borradaile | Balleny Islands | New Zealand}} |
| Bourinot | Ontario}} | Canada}} |
| Bouvetoya | South Atlantic Ocean | Norway}} |
| Bowen | British Columbia}} | Canada}} |
| Boyd | Tennessee}} | United States}} |
| Boyuk Zira | Baku Archipelago | Azerbaijan}} |
| Bozcaada | Aegean Islands | Turkey}} |
| Brač | Adriatic Sea | Croatia}} |
| Brandsø | Islands of the Little Belt | Denmark}} |
| Brännö | Southern Gothenburg Archipelago | Sweden}} |
| Brant | Louisiana}} | United States}} |
| Bray | Nunavut}} | Canada}} |
| Brecqhou | Brechou Channel Islands | United Kingdom}} Crown dependency |
| Breeze | Ontario}} | Canada}} |
| Breezy | New Hampshire}} | United States}} |
| Bréhat | France}} |
| Bremangerlandet | Norway}} |
| Bressay | Shetland Islands}} | Scotland}} |
| Bridgeman | South Shetland Islands | Argentina}},
{{flag|Antártica Chilena Province}} of {{flag|Chile}},
and the {{flag|British Antarctic Territory}} of the{{flag|United Kingdom}} |
| Brijuni | Adriatic Sea | Croatia}} |
| Broadview | Ontario}} | Canada}} |
| Brodeur | Ontario}} | Canada}} |
| Brother | New York}} | United States}} |
| Brother | Shetland Islands}} | Scotland}} |
| Browns Island | Utah}} | United States}} |
| Brown | Washington}} | United States}} |
| Browning | Ontario}} | Canada}} |
| Browns | Louisiana}} | United States}} |
| Browns | West Virginia}} | United States}} |
| Brownsea | England}} | {{flag|United Kingdom}} |
| Brownscombe | Ontario}} | Canada}} |
| Brunec | Glénan islands | France}} |
| Brunot | Pennsylvania}} | United States}} |
| Bruny | Tasmania}} | Australia}} |
| Bruray | Shetland Islands}} | Scotland}} |
| Brush | Louisiana}} | United States}} |
| Bryher | Isles of Scilly | United Kingdom}} |
| Bu Sadah | Hawar Islands | Bahrain}} |
| Bu Tammur | Hawar Islands | Bahrain}} |
| Bubaque | Bissagos Islands | Guinea-Bissau}} |
| Bubiyan | Persian Gulf | Kuwait}} |
| Buchhorst | Trave river | Germany}} |
| Buck | U.S. Virgin Islands}} | United States}} |
| Buckle | Balleny Islands | New Zealand}} |
| Buckley | West Virginia}} | United States}} |
| Buffington | West Virginia}} | United States}} |
| Bugio | Estremadura islands | Portugal}} |
| Bugio | Madeira}} | Portugal}} |
| Buláti-sziget | Tisza | Hungary}} |
| Buldir | Alaska}} | United States}} |
| Bull | Dublin Bay | Ireland}} |
| Bull | South Carolina}} | United States}} |
| Bulla | Caspian Sea | Azerbaijan}} |
| Bunce | Sierra Leone River | Sierra Leone}} |
| Buneh | Persian Gulf | Iran}} |
| Buøy | Island in Øyane archipelago, Stavanger municipality, Rogaland | Norway}} |
| Burano | Venetian Lagoon | Italy}} |
| Burgazada | Prince's Islands | Turkey}} |
| Burhou | Channel Islands | Guernsey}} |
| Burke Island | Ontario}} | Canada}} |
| Burlington | Illinois}} | United States}} |
| Burlington | New Jersey}} | United States}} |
| Burns | Tennessee}} | United States}} |
| Burnt | Ontario}} | Canada}} |
| Burnt | Ontario}} | Canada}} |
| Burra | Shetland Islands}} | Scotland}} |
| Burray | Orkney Islands}} | Scotland}} |
| Burrit | Ontario}} | Canada}} |
| Burton | Vermont}} | United States}} |
| Bushes | Nebraska}} | United States}} |
| Bussell | Tennessee}} | United States}} |
| Bustard | Ontario}} | Canada}} |
| Butler | Vermont}} | United States}} |
| Büyükada | Princes' Islands | Turkey}} |
| Buzzard | Illinois}} | United States}} |
| Byan Martin | Nunavut}} | Canada}} |
| Bylot | Nunavut}} | Canada}} |
|