| Name | Meaning | Gender | Origin |
|---|
| Bruiser | A large heavyset man | Unisex | English |
| Bruno | Armour | Male | Germanic |
| Brutus | Heavy, slow, foolish | Male | Latin |
| Buck | He-goat | Male | English |
| Bud | Brother. Nickname Used Since Medieval Times. | Male | English |
| Bugsy | | Unisex | Hebrew |
| 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 |
| Butch | Masculine in appearance or manner. | Unisex | American English |
| Buzz | To move quickly and busily, to bustle | Male | English |
| Caesar | Long Hair | Male | Latin |
| Cain | A spear | Male | Hebrew |
| Caine | Reed, cane | Unisex | English |
| Captain | A captain | Unisex | English |
| Ceasar | Hairy Child, Long Haired | Male | Latin |
| Chaz | Free man | Male | German |
| Chevy | Knight | Unisex | French |
| Chief | One in highest rank or authority. | Unisex | English |
| Chip | Free man | Male | German |
| Chipper | Lively spirits, cheerful. Chip off the old block. | Unisex | English |
| Chocolate | Product of cocoa seeds used for drinks or candy | Unisex | English |
| Chopper | Slang for helicopter. One who chops or cuts. | Unisex | English |
| Clint | Settlement on the river Glyme | Male | English |
| Clyde | Refers To The Scottish Clyde River. | Male | Gaelic |
| Cobra | Venomous snakes | Both | Portuguese |
| Cocoa | Cocoa Jumbo | Unisex | English |
| Cola | Charcoal | Unisex | English |
| Comet | A celestial body | Unisex | English |
| Conan | Little wolf hound | Male | Gaelic |