| Name | Meaning | Gender | Origin |
|---|
| Avi | My father | Unisex | Hebrew |
| Baby | Baby | Unisex | American English |
| Baikal | An ancient, massive lake in the mountainous Russian region of Siberia | Both | Russian |
| Bailey | Bailiff | Male | English |
| Balto | Baal protect the king | Both | Babylonian |
| Bandit | An outlaw or robber | Unisex | English |
| Baron | Freeman | Male | Germanic |
| Batman | A fictional superhero appearing in American comic books published by DC Comics | Both | Hebrew |
| Bear | Large mammal with large head, bulky body and coarse thick fur | Unisex | English |
| Beau | Handsome | Male | French |
| Bella | My God is a vow | Female | Hebrew |
| Ben | Son | Male | Hebrew |
| Bering | A marginal sea of the Pacific Ocean | Both | English |
| Berry | A berry | Unisex | English |
| Blade | Wealthy Glory | Male | English |
| Blaze | Stuttering | Unisex | Latin |
| Blazer | | Unisex | Hebrew |
| Blitz | | Unisex | Hebrew |
| Blizzard | Violent snowstorm | Unisex | English |
| Blu | | Unisex | Hebrew |
| Blue | Blue | Unisex | English |
| Bo | Handsome | Female | French |
| Bobbi | Bright fame | Female | Germanic |
| Bobby | Bright fame | Unisex | Germanic |
| Borealis | Northern or of the north | Both | Latin |
| Boreas | North wind | Both | Latin |
| Boris | Battle, fight | Male | Slavonic |
| Brandy | Burning wine | Female | English |
| Brook | A brook, stream | Female | English |
| Brooks | A brook, stream | Male | English |