| Name | Meaning | Gender | Origin |
|---|
| Christopher | Christ-bearer | Male | Greek |
| Christy | Greek and Latin, bearer of Christ | Male | Greek |
| Ciara | black-haired | Female | Irish |
| Cinnamon | | Female | Hebrew |
| Claire | bright, clear | Female | |
| Claudia | Feminine of Claude.
| Female | Latin |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Cody | Helpful.
| Male | English |
| Colby | coal town | Male | English |
| Colby | coal town | Male | English |
| Cole | coal, victory of the people | Male | English |
| Conner | desire, wise aid, wolf-lover | Unisex | |
| Connor | lover of hounds | Male | Irish |
| Cookie | A small flat, crisp cake | Female | |
| Cooper | Barrel maker | Male | English |
| Coral | Greek for small stone. Sincere or from the sea. Marine animal whose skeletons form coral reefs. | Female | Nature |
| Cordelia | In Shakespeare's King Lear a woman of rare honesty.
| Female | Latin |
| Corey | raven, from the hollow | Male | Irish |
| Courtney | from the court | Female | |
| Crescent | one who creates | Female | |
| Cuddles | To nestle or snuggle. | Unisex | |
| Cupcake | Small cake baked in a cup shaped container | Unisex | |
| Dahlia | Flower Named For Botanist A. Dahl | Female | Greek |