| Name | Meaning | Gender | Origin |
|---|
| Cheetah | | Unisex | Hebrew |
| Cheeto | | Unisex | Hebrew |
| Chelsea | river landing place, port | Female | |
| Chickadee | | Unisex | Hebrew |
| Chicken | | Unisex | Hebrew |
| Chief | One in highest rank or authority. | Unisex | |
| Chloe | Fresh young blossom, Greek for blooming | Female | Greek |
| Chrissie | Anointed, Follower Of Christ | Unisex | English |
| Chula | after Prince Chula Chakrabongse, member of Siam's royal family | Unisex | |
| Cinder | | Unisex | Hebrew |
| Cindy | Abbreviation of Cynthia and Lucinda.
| Female | English |
| Cinnamon | | Female | Hebrew |
| Clara | bright, clear | Female | Latin |
| Clarabelle | bright and beautiful | Female | Latin |
| Clarice | Latin, bright, clear | Female | English |
| Claudette | Feminine of Claude.
| Female | |
| Claw | | Unisex | Hebrew |
| Clementine | mild, merciful | Female | |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Cleocatra | | Unisex | Hebrew |
| Cleopatra | glory of the father | Female | Greek |
| Clio | praise, muse of history | Female | Greek |
| Cobweb | | Unisex | Hebrew |
| Coco | A pet name.
| Female | Spanish |