| Name | Meaning | Gender | Origin |
| Buttons | | Unisex | Hebrew |
| Cameo | Delicate,carved relief | Unisex | English |
| Capone | | Unisex | Hebrew |
| Captain | A captain | Unisex | English |
| Cash | Cash | Unisex | English |
| Chaos | Gaping void | Unisex | Greek |
| Charlie | Free man | Unisex | Germanic |
| Checkers | | Unisex | Hebrew |
| Cherokee | People Of A Different Speech. One Of The Largest American Indian Tribes. | Unisex | English |
| Chevy | Knight | Unisex | French |
| Chewie | | Unisex | Hebrew |
| Chewy | Needing chewing. | Unisex | English |
| Chief | One in highest rank or authority. | Unisex | English |
| Chili | | Unisex | Hebrew |
| Chipper | Lively spirits, cheerful. Chip off the old block. | Unisex | English |
| Chocolate | Product of cocoa seeds used for drinks or candy | Unisex | English |
| Chubbs | Rounded and plump. | Unisex | English |
| Chucky | Free man | Unisex | German |
| Cinder | | Unisex | Hebrew |
| Coco | A Pet Name. | Unisex | French |
| Cocoa | Cocoa Jumbo | Unisex | English |
| Coconut | Edible white flesh of the coconut palm tree. | Unisex | English |
| Comet | A celestial body | Unisex | English |
| Cookie | A small flat, crisp cake | Unisex | English |
| Copper | A reddish brown metal - as in copper penny coins. Also slang for a police officer. | Unisex | English |
| Corky | Variant Of Corey Hill Hollow. | Unisex | English |
| Cotton | Woody hill | Unisex | Welsh |
| Cozmo | | Unisex | Hebrew |
| Crackers | | Unisex | Hebrew |
| Cricket | A leaping insect | Unisex | English |