| Name | Meaning | Gender | Origin |
|---|
| Beauty | One that is beautiful, especially a woman | Female | |
| Bebe | baby | Female | English |
| Beeper | | Unisex | Hebrew |
| Bella | Beautiful
| Female | English |
| Bella | Beautiful
| Female | English |
| Belle | Beautiful woman | Female | Short |
| Betty Boop | | Unisex | Hebrew |
| Big Boy | | Unisex | Hebrew |
| Binkie | | Unisex | Hebrew |
| Binky | | Unisex | Hebrew |
| Bits | | Unisex | Hebrew |
| Bitsy | | Female | Hebrew |
| Bitty | Very small. Composed of fragments. | Unisex | |
| Blossom | lovely, A flower or cluster of flowers | Female | English |
| Bonbon | | Unisex | Hebrew |
| Bongo | Connected drums played by beating with hands. | Unisex | |
| Bonita | Pretty little one.
| Female | Spanish |
| Bonsai | The art of growing dwarfed ornamental trees and shrubs. | Unisex | |
| Boo Boo | | Unisex | Hebrew |
| Boogie | | Unisex | Hebrew |
| Bootsy | | Unisex | Hebrew |
| Brenna | Raven maid, dark-haired | Female | Irish |
| Brillo | Brand of pot cleaner - Brillo pads. | Unisex | |
| Brooke | small stream | Female | English |
| 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 | |