| Name | Meaning | Gender | Origin |
|---|
| Christopher | Christ-bearer | Male | Greek |
| Ciara | black-haired | Female | Irish |
| Cindy | Abbreviation of Cynthia and Lucinda.
| Female | English |
| Claire | bright, clear | Female | |
| Clara | bright, clear | Female | Latin |
| Clarissa | bright, clear | Female | Latinized |
| Clark | cleric, scholar | Male | English |
| Claudia | Feminine of Claude.
| Female | Latin |
| Clay | adhere, mortal | Male | English |
| Clayton | place with good clay | Male | English |
| Cody | Helpful.
| Male | English |
| Cohen | priest | Male | Hebrew |
| Colby | coal town | Male | English |
| Colby | coal town | Male | English |
| Cole | coal, victory of the people | Male | English |
| Colette | victory of the people | Female | |
| Colin | Strong and virile; victorious army; youth, child, victor | Male | English |
| Collins | Abbreviation Of Nicholas People`S Victory. | Female | French |
| Colt | From The Dark Town | Male | English |
| Colten | Coal Town | Unisex | English |
| Conner | desire, wise aid, wolf-lover | Unisex | |
| Connor | lover of hounds | Male | Irish |
| Conrad | brave counsel | Male | |
| Cooper | Barrel maker | Male | English |
| Corbin | from the movie The Fifth Element | Male | Latin |