| Blakeley | - | English Name | Blane | - | Irish Name |
| Blaney | - | Scottish Name | Blayne | - | Scottish Name |
| Blayze | - | American Name | Blaze | - | English Name |
| Bleecker | - | Dutch Name | Bliant | - | Arthurian Name |
| Blu | - | English Name | Blythe | - | English Name |
| Bo | - | Slavic Name | Bo | - | United States Name |
| Bo Gum | - | Korean Name | Boanerges | - | Biblical Name |
| Boaventura | - | Portuguese Name | Boaz | - | Hebrew Name |
| Boaz | - | West Indies Name | Boaz, or Booz | - | Biblical Name |
| Bob | - | German Name | Bobby | - | United States Name |
| Bobo | - | African Name | Bocheru | - | Biblical Name |
| Bodashamem | - | Phoenician Name | Bodashtart | - | Phoenician Name |
| Bodashtor | - | Phoenician Name | Bodastart | - | Phoenician Name |
| Bodaway | - | American Name | Bodbaal | - | Phoenician Name |
| Bode | - | German Name | Bodemon | - | Phoenician Name |
| Boden | - | Anglo Name | Bodgan | - | Romanian Name |
| Bodhan | - | Indian Name | Bodhi | - | Sanskrit Name |
| Bodhi | - | United States Name | Bodi | - | Hungarian Name |
| Bodie | - | Scandinavian Name | Bodil | - | Danish Name |
| Bodmelqart | - | Phoenician Name | Bodwyn | - | Arthurian Name |
| Bogart | - | French Name | BOGDAN | - | Russian Name |
| Bogdan | - | Ukrainian Name | Boghos | - | Armenian Name |
| Bogi | - | Icelandic Name | Bogoljub | - | Serbian Name |
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