| Name | Meaning | Gender | Origin |
|---|
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buffy | God's promise | Female | English |
| Bundy | Bundy short for Australian Bundeberg Rum. | Unisex | |
| Burke | birch tree | Male | |
| Buster | One that breaks up something | Male | Modern |
| Butch | Masculine in appearance or manner. | Male | Nickname |
| Caesar | Title for Roman Emperors | Male | Latin |
| Callie | Lark
| Female | Greek |
| Camo | | Unisex | Hebrew |
| Candy | Confectionery made with sugar. | Female | English |
| Casey | brave, watchful | Male | Irish |
| Casper | Master of the treasure | Male | Dutch |
| Cassie | Abbreviation of Cassandra. Unheeded prophetess. In Homer's The Iliad Cassandra's prediction of the fall of Troy was unheeded.
| Female | English |
| Cat | pure | Female | English |
| Cat | pure | Female | English |
| Charles | manly, strong | Male | |
| Charlie | a man: variant of Carl.
| Male | English |
| Checkers | | Male | Hebrew |
| Cheerio | Brand of breakfast cereal | Unisex | |
| Chewie | | Male | Hebrew |
| Chewie | | Male | Hebrew |
| Chippy | | Unisex | Hebrew |
| Chloe | Fresh young blossom, Greek for blooming | Female | Greek |
| Chopper | Slang for helicopter. One who chops or cuts. | Unisex | |
| Chrissie | Anointed, Follower Of Christ | Unisex | English |