| Name | Meaning | Gender | Origin |
|---|
| Brown | colour | Male | Color |
| Bruce | thicket, woodlands | Male | Scottish |
| Bryan | strong, virtuous, and honorable | Male | English |
| Bryce | Son of a nobleman
| Male | English |
| Bubba | | Male | Hebrew |
| Bubba | | Male | Hebrew |
| Buck | A fleet footed youth. Male deer. | Male | English |
| Bud | herald, to puff up, friend | Male | English |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buffalo Bill | | Unisex | Hebrew |
| Bugg | | Unisex | Hebrew |
| Bunky | | Unisex | Hebrew |
| Burke | birch tree | Male | |
| Burt | fortress | Unisex | |
| Burton | bright fame | Male | English |
| Buster | One that breaks up something | Male | Modern |
| Butch | Masculine in appearance or manner. | Male | Nickname |
| Butler | Butler | Male | English |
| Byron | after Lord Byron | Male | English |
| Caddie | One hired to carry golf clubs | Unisex | |
| Cain | and Able | Male | Hebrew |
| Calvin | Bald | Male | Latin |
| Cameron | Clan name meaning Bent nose.
| Male | Scottish |
| Campbell | beautiful field | Female | Scottish |