| Name | Meaning | Gender | Origin |
|---|
| Blondie | Pale yellowish-brown | Unisex | French |
| Blossom | Blossom, flower | Female | English |
| Blue | Blue | Unisex | English |
| Bonita | Pretty | Female | Spanish |
| Bonnie | Pretty | Female | English |
| Bonsai | The art of growing dwarfed ornamental trees and shrubs. | Unisex | English |
| Bradley | Broad wood | Male | English |
| Brandy | Burning wine | Female | English |
| Brenda | Sword | Female | Norse |
| Brock | Badger | Male | English |
| Brodie | Muddy place | Male | Gaelic |
| Brownie | Moist chocolate cake with nuts | Unisex | English |
| Brutus | Heavy, slow, foolish | Male | Latin |
| Bubba | | Unisex | Hebrew |
| Buddha | | Unisex | Hebrew |
| Buddy | Herald | Male | English |
| Bugsy | | Unisex | Hebrew |
| Bunny | Little rabbit | Female | English |
| Buster | One that breaks up something | Unisex | American English |
| Butch | Masculine in appearance or manner. | Unisex | American English |
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Unisex | English |
| Buzz | To move quickly and busily, to bustle | Male | English |
| Cairo | Victorious one | Unisex | Arabic |
| Camille | Altar server | Female | Latin |
| Candy | Honest | Female | Latin |
| Carolina | Free man | Female | German |
| Carson | Son Of Carr | Male | Gaelic |
| Casey | From Cayce | Male | American English |
| Casper | Treasurer | Male | Persian |
| Cassie | She who entangles men | Female | Greek |