| Name | Meaning | Gender | Origin |
|---|
| Cherokee | Native American Tribe | Unisex | English |
| Chesspiece | | Unisex | |
| Chocolate | Product of cocoa seeds used for drinks or candy | Male | |
| Cinder | | Unisex | Hebrew |
| Cinders | | Unisex | Hebrew |
| Clarisse | Clear, Illuminated | Unisex | French |
| Coal | | Male | Hebrew |
| Coaldust | | Unisex | Hebrew |
| 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 |
| Crow | | Male | Hebrew |
| Cuddles | To nestle or snuggle. | Unisex | |
| Dark | | Unisex | Hebrew |
| Darth | | Unisex | Hebrew |
| Darth Vader | | Male | Hebrew |
| Dash | To move with haste, to rush. Punctuation. Long sound in Morse code. | Male | English |
| Death | | Unisex | Hebrew |