| Name | Meaning | Gender | Origin |
|---|
| Broderick | son of Roderick, from the broad ridge | Male | Norse |
| 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 |
| Buckaroo | | Unisex | Hebrew |
| Bugs | | Unisex | Hebrew |
| Bullet | A metal cylinder shot from a rifle or gun. Used to express speed. | Male | |
| Bumblebee | | Unisex | |
| Bungee | | Male | |
| Buster | One that breaks up something | Male | Modern |
| Buzz | To move quickly and busily, to bustle | Male | Modern |
| Calamity | | Male | Hebrew |
| Calamity Jane | | Unisex | Hebrew |
| Calida | Ardent
| Female | Spanish |
| Calypso | Greek for concealor. A type of music originating in the West Indies. Also a satellite of Saturn. | Male | Greek |
| Cappuccino | | Unisex | Hebrew |
| Cappuccino | | Unisex | Hebrew |
| Catnip | | Male | Hebrew |
| Cayenne | Red ground spice from several varieties of capsicum | Female | Word |
| Chaos | Kay-oss | Male | |
| Chase | hunter, To follow or go in pursuit | Male | |
| Cheetah | | Unisex | Hebrew |
| Chili | | Male | Hebrew |
| Chris | one who carries Christ | Male | English |
| Clancy | offspring of red-headed soldier | Male | Irish |