| Name | Meaning | Gender | Origin |
|---|
| Bimbo | | Unisex | Hebrew |
| Binkie | | Unisex | Hebrew |
| Binky | | Unisex | Hebrew |
| Birdie | bird | Female | English |
| Blackjack | A leather covered hand weapon. A card game | Unisex | |
| Blossom | lovely, A flower or cluster of flowers | Female | English |
| Bluebell | | Female | Hebrew |
| Blueberry | | Unisex | Hebrew |
| Boca | | Unisex | Hebrew |
| Bolt | | Unisex | Hebrew |
| Bonzai | | Unisex | Hebrew |
| Boo-Boo | | Unisex | Hebrew |
| Boogie | | Unisex | Hebrew |
| Boomer | A large full grown kangaroo. A baby boomer. | Unisex | |
| Bouhaki | | Unisex | Hebrew |
| Bouncer | One who bounds up and down | Unisex | |
| Boxer | | Unisex | Hebrew |
| Brea | bray-uh | Female | Short |
| Brenda | fiery hill, sword-blade | Female | Celtic |
| Bubble | | Unisex | Hebrew |
| Bucky | | Unisex | Hebrew |
| Bucky Katt | | Unisex | Hebrew |
| Buford | | Unisex | Hebrew |
| Bug | An insect. A disease-producing microorganism. An error in coding or logic that causes a malfunction in a computer a program. An electronic listening device. An enthusiasm. Slang for annoy. | Unisex | |
| Bully | An overbearing person, a ruffian | Unisex | |