| Brooklyn | Unisex | American Names |
| Broox | Man | American Names |
| Browning | Man | American Names |
| Bryanne | Woman | American Names |
| Brycen | Man | American Names |
| Brycondi | Man | American Names |
| Brye | Woman | American Names |
| Brykita | Woman | American Names |
| Brylee | Woman | American Names |
| Bubba | Man | American Names |
| Bucky | Man | American Names |
| Bud | Man | American Names |
| Buddy | Man | American Names |
| Buffy | Woman | American Names |
| Bunny | Woman | American Names |
| Burl | Man | American Names |
| Buster | Man | American Names |
| Busy | Woman | American Names |
| Butch | Unisex | American Names |
| Butterfly | Woman | American Names |