| Name | Meaning | Gender | Origin |
|---|
| Cameo | A carved gem portrait.
| Female | Word |
| Caper | | Unisex | Hebrew |
| Cappy | | Unisex | Hebrew |
| Caramel | A smooth chewy candy | Unisex | |
| Carla | Manly | Female | Italian |
| Carly | Little and womanly. Alternate Spelling: Carlie.
| Female | Feminine |
| Carlyle | Carl's island | Unisex | |
| Carrie | Abbreviation of Carol and Caroline from the masculine Charles meaning manly
| Female | English |
| Carrot | | Unisex | Hebrew |
| Cassidy | Clever: Curly-headed.
| Female | Irish |
| Ceasar | Hairy Child, Long Haired | Unisex | Latin |
| Chanel | canal | Female | |
| Charlotte | petite and femininewoman, feminine of Charles | Female | |
| Cheddar | | Unisex | Hebrew |
| Cheech | | Unisex | Hebrew |
| Cheeta | | Unisex | Hebrew |
| Cheetah | | Unisex | Hebrew |
| Chelsea | river landing place, port | Female | |
| Chloe | Fresh young blossom, Greek for blooming | Female | Greek |
| Chubby | Rounded and plump | Unisex | |
| Chubby | Rounded and plump | Unisex | |
| Cici | Blind | Unisex | English |
| Cid | Contraction Of St. Denis | Unisex | English |
| Cj | | Unisex | |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |