| Name | Meaning | Gender | Origin |
|---|
| Bikini | | Unisex | Hebrew |
| Billy | resolute protection | Male | English |
| Birgitte | | Unisex | Hebrew |
| Black Olive | | Unisex | Hebrew |
| Blackest | | Unisex | |
| Bo | Nickname made popular by actress Bo Derek.
| Male | Norse |
| Boaz | swiftness | Male | Hebrew |
| Body | Blond
| Male | |
| Bogart | strong as a bow | Male | Gaelic |
| Bogie | | Male | Hebrew |
| Bole | | Unisex | |
| Bourbon | A whiskey distilled from fermented mash | Male | Word |
| Bowen | Son of Owen
| Male | Welsh |
| Bowtie | | Unisex | Hebrew |
| Breanne | Strong | Unisex | Irish |
| Brian | strong | Male | Irish |
| Brillo | Brand of pot cleaner - Brillo pads. | Unisex | |
| Brina | protector | Unisex | |
| Brit | Of Bretagne, France | Unisex | Irish |
| Brita | Of Bretagne, France | Unisex | English |
| Brunon | Brown
| Male | |
| Bryan | strong, virtuous, and honorable | Male | English |
| Bryson | Variant of Bryce.
| Male | English |
| Bubble | | Unisex | Hebrew |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Male | |