| Name | Meaning | Gender | Origin |
|---|
| Bobby | bright fame | Male | English |
| Boone | a blessing | Male | English |
| Brad | English, wide meadow | Male | English |
| Bradley | broad meadow | Male | English |
| Brady | large-chested | Male | Irish |
| Brandi | Brandy | Unisex | English |
| Braxton | Brock's settlement | Male | English |
| Bret | Native of Brittany | Unisex | |
| Brett | a native of Brittany, Briton | Male | Celtic |
| Brian | strong | Male | Irish |
| Brice | swift, quick-moving, son of Rice | Male | Scottish |
| Bridger | lives near the bridge | Male | English |
| Broderick | son of Roderick, from the broad ridge | Male | Norse |
| Brody | From the muddy place. Surname.
| Male | Irish |
| Bronco | A wild horse | Male | Spanish |
| Bronson | son of Brown, son of the dark-skinned one | Male | English |
| Brooks | of the brook | Male | English |
| Bruce | thicket, woodlands | Male | Scottish |
| Bryan | strong, virtuous, and honorable | Male | English |
| Bryce | Son of a nobleman
| Male | English |
| Buck | A fleet footed youth. Male deer. | Male | English |
| Bucky | | Unisex | Hebrew |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buster | One that breaks up something | Male | Modern |