| Name | Meaning | Gender | Origin |
|---|
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Male | |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Male | |
| 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 |
| Bullseye | | Unisex | Hebrew |
| Buster | One that breaks up something | Male | Modern |
| Butch | Masculine in appearance or manner. | Male | Nickname |
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Female | |
| Buzz | To move quickly and busily, to bustle | Male | Modern |
| Captain | One who commands or leads others. Officer in command of ship, aircraft, police or fire station. | Male | |
| Carlton | Free men's town.
| Male | |
| Carrie | Abbreviation of Carol and Caroline from the masculine Charles meaning manly
| Female | English |
| Celia | heavenly | Female | Latin |
| Charles | manly, strong | Male | |
| Charlie | a man: variant of Carl.
| Male | English |
| Chet | fortress, walled town | Male | English |
| Chuck | a man: variant of Carl.
| Male | English |
| Chuckles | | Male | Hebrew |
| Chunk | | Unisex | Hebrew |
| Claire | bright, clear | Female | |
| Colette | victory of the people | Female | |
| Coral | Greek for small stone. Sincere or from the sea. Marine animal whose skeletons form coral reefs. | Female | Nature |
| Crabby | | Unisex | Hebrew |
| Crow | | Male | Hebrew |