| Name | Meaning | Gender | Origin |
|---|
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Boo Boo | | Unisex | Hebrew |
| Boss | An employer or supervisor | Unisex | |
| Boudicca | victory | Female | Celtic |
| Brewster | brewer | Male | English |
| Buckbeak | | Unisex | |
| Bunny | little rabbit | Female | Nickname |
| Buster | One that breaks up something | Male | Modern |
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Female | |
| Cake | | Unisex | Hebrew |
| Calypso | Greek for concealor. A type of music originating in the West Indies. Also a satellite of Saturn. | Male | Greek |
| Camilla | young ceremonial attendant | Female | Latin |
| Candy | Confectionery made with sugar. | Female | English |
| Cappuccino | | Unisex | Hebrew |
| Cappuccino | | Unisex | Hebrew |
| Captain | One who commands or leads others. Officer in command of ship, aircraft, police or fire station. | Male | |
| Carmen | garden, field of fruit, song. One who has a beautiful voice. | Female | Spanish |
| Caruso | | Male | Hebrew |
| Casey | brave, watchful | Male | Irish |
| Casino | | Unisex | Hebrew |
| Caspian | from C.S. Lewis The Chronicles of Narnia | Male | Place |
| Cassandra | prophet of doom | Female | Greek |