| Name | Meaning | Gender | Origin |
|---|
| Bernie | Bear brave | Male | German |
| Bert | Bright | Male | Germanic |
| Billy | Will, desire and helmet, protection | Male | Germanic |
| Bj | | Unisex | Hebrew |
| Blondie | Pale yellowish-brown | Unisex | French |
| Blue | Blue | Unisex | English |
| Bob | Bright fame | Male | Germanic |
| Bobbi | Bright fame | Female | Germanic |
| Bobby | Bright fame | Unisex | Germanic |
| Bonnie | Pretty | Female | English |
| Boomer | A large full grown kangaroo. A baby boomer. | Unisex | English |
| Boots | | Unisex | Hebrew |
| Bradley | Broad wood | Male | English |
| Brandy | Burning wine | Female | English |
| Brea | Noble, strong, virtuous | Female | Gaelic |
| Brownie | Moist chocolate cake with nuts | Unisex | English |
| Bruce | Surname Since Medieval Times: Now A Common Given Name. Folklore Tale Of 14Th Century Robert King Of Scotland: (The Bruce) Who Learned The Value Of Perseverance From Watching A Spider Spin A Web. | Male | English |
| Bruiser | A large heavyset man | Unisex | English |
| Bruno | Armour | Male | Germanic |
| Buddy | Herald | Male | English |
| Bullet | A metal cylinder shot from a rifle or gun. Used to express speed. | Unisex | English |
| Bully | An overbearing person, a ruffian | Unisex | English |
| Buster | One that breaks up something | Unisex | American English |
| Buttons | | Unisex | Hebrew |
| Caesar | Long Hair | Male | Latin |
| Cain | A spear | Male | Hebrew |
| Candy | Honest | Female | Latin |
| Carden | Thistle | Male | English |
| Casey | From Cayce | Male | American English |
| Cassie | She who entangles men | Female | Greek |