| Name | Meaning | Gender | Origin |
|---|
| Clarisse | Clear, Illuminated | Unisex | French |
| Cleopatra | glory of the father | Female | Greek |
| Coal | | Male | Hebrew |
| Coaldust | | Unisex | Hebrew |
| Cocoa | cocoa Jumbo | Female | Color |
| Cody | Helpful.
| Male | English |
| Coffee | | Unisex | Hebrew |
| Coffee Bean | | Unisex | Hebrew |
| Coke | Short for the most famous brand of soft drink, Coca-Cola. | Unisex | |
| Cola | Carbonated soft drink made in part from extract of the cola nut. | Unisex | |
| Cole | coal, victory of the people | Male | English |
| Conan | Hound.
| Male | Irish |
| Conjurer | | Unisex | Hebrew |
| Corey | raven, from the hollow | Male | Irish |
| Cosmo | Order, universe.
| Male | Italian |
| Cricket | A leaping insect | Female | Nature |
| Crow | | Male | Hebrew |
| Crystal | Variant of Christiana. Follower of Christ.
| Female | |
| Crystal | Variant of Christiana. Follower of Christ.
| Female | |
| Cuddles | To nestle or snuggle. | Unisex | |
| Daisy | Day's eye. A flower name.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Dakota | Friend: ally. Tribal name.
| Female | Place-name |
| Dark | | Unisex | Hebrew |
| Darth | | Unisex | Hebrew |