| Name | Meaning | Gender | Origin |
|---|
| Bandit | An outlaw or robber | Unisex | English |
| Barbie | Foreign, strange | Female | Greek |
| Barkley | | Unisex | Hebrew |
| Barnaby | Son of consolation | Unisex | Hebrew |
| Bb | | Unisex | Hebrew |
| Beamer | Trumpeter | Unisex | English |
| Beanie | | Unisex | Hebrew |
| Bear | Large mammal with large head, bulky body and coarse thick fur | Unisex | English |
| Beauty | One that is beautiful, especially a woman | Unisex | English |
| Bella | My God is a vow | Female | Hebrew |
| Belle | Beautiful | Female | French |
| Biggie | | Unisex | Hebrew |
| Billie | Will, desire and helmet, protection | Unisex | Germanic |
| Bingo | A game where numbers are drawn and announced by a caller | Unisex | English |
| Binky | | Unisex | Hebrew |
| Birdy | Birdlike | Unisex | English |
| Biscuit | A cookie or cracker | Unisex | English |
| Bitsy | | Unisex | Hebrew |
| Bj | | Unisex | Hebrew |
| Blackie | Of the colour black. | Unisex | English |
| Blanche | White | Female | French |
| Blaze | Stuttering | Unisex | Latin |
| Blondie | Pale yellowish-brown | Unisex | French |
| Blossom | Blossom, flower | Female | English |
| Blue | Blue | Unisex | English |
| Bo | Handsome | Female | French |
| Bobbie | Bright fame | Female | Germanic |
| Bobby | Bright fame | Unisex | Germanic |
| Bobo | On tuesday born | Unisex | African |
| Bogey | | Unisex | Hebrew |