| Name | Meaning | Gender | Origin |
|---|
| Berry | A berry | Unisex | English |
| Bert | Bright | Male | Germanic |
| Bijou | Jewel | Unisex | French |
| Bilbo | | Unisex | Hebrew |
| Bingo | A game where numbers are drawn and announced by a caller | Unisex | English |
| Bishop | Overseer | Male | English |
| Blade | Wealthy Glory | Male | English |
| Blake | Dark | Male | English |
| Blaze | Stuttering | Unisex | Latin |
| Bling | | Unisex | Hebrew |
| Blue | Blue | Unisex | English |
| Bob | Bright fame | Male | Germanic |
| Bobby | Bright fame | Unisex | Germanic |
| Bolt | | Unisex | Hebrew |
| Bond | Peasant farmer | Male | English |
| Boo | | Unisex | Hebrew |
| Boomer | A large full grown kangaroo. A baby boomer. | Unisex | English |
| Branson | Sword | Male | Germanic |
| Brian | Noble, strong, virtuous | Male | Gaelic |
| Brooklyn | Uncertain, perhaps broken land | Unisex | Dutch |
| Brownie | Moist chocolate cake with nuts | Unisex | English |
| Bruiser | A large heavyset man | Unisex | English |
| Bruno | Armour | Male | Germanic |
| Bubba | | Unisex | Hebrew |
| Buddy | Herald | Male | English |
| Bullet | A metal cylinder shot from a rifle or gun. Used to express speed. | Unisex | English |
| Bumper | | Unisex | Hebrew |
| Burton | Fort town | Male | English |
| Buster | One that breaks up something | Unisex | American English |
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Unisex | English |