| Name | Meaning | Gender | Origin |
|---|
| Blaze | Lisp: stutter. Blaise Pascal was a brilliant seventeenth century child prodigy: mathematician: scientist and philosopher who invented the calculating machine and hydraulic press before dying at age thirty-nine.
| Male | Latin |
| Bo | Nickname made popular by actress Bo Derek.
| Male | Norse |
| Booker | beech tree | Male | English |
| Boone | a blessing | Male | English |
| Boss | An employer or supervisor | Unisex | |
| Bowen | Son of Owen
| Male | Welsh |
| Braxton | Brock's settlement | Male | English |
| Bret | Native of Brittany | Unisex | |
| 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 |
| Bryce | Son of a nobleman
| Male | English |
| Buck | A fleet footed youth. Male deer. | Male | English |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buster | One that breaks up something | Male | Modern |
| Butch | Masculine in appearance or manner. | Male | Nickname |
| Byron | after Lord Byron | Male | English |
| Cade | barrel | Male | English |
| Caleb | The bold one | Male | Hebrew |
| Calhoun | warrior | Male | Irish |
| Calvin | Bald | Male | Latin |