| Name | Meaning | Gender | Origin |
|---|
| Cecilia | blind one | Female | Latin |
| Cedric | Battle leader
| Male | Celtic |
| Charlie | a man: variant of Carl.
| Male | English |
| Charlotte | petite and femininewoman, feminine of Charles | Female | |
| Chester | fortress, walled town, | Male | Latin |
| Chuck | a man: variant of Carl.
| Male | English |
| Clara | bright, clear | Female | Latin |
| Clark | cleric, scholar | Male | English |
| Claude | Lame.
| Male | |
| Claudia | Feminine of Claude.
| Female | Latin |
| Clem | Latin, mild, merciful | Male | |
| Clementine | mild, merciful | Female | |
| Colette | victory of the people | Female | |
| Connie | Constant, Firm | Male | English |
| Connor | lover of hounds | Male | Irish |
| Conrad | brave counsel | Male | |
| Constance | steadfastness | Female | English |
| Cordelia | In Shakespeare's King Lear a woman of rare honesty.
| Female | Latin |
| Cyrus | throne | Male | Persian |
| Dallas | Dwells by the waterfall
| Male | Place-name |
| Davis | David's son
| Male | Surname |
| Delilah | Desired. Languishing. The Biblical Delilah tempted Samson into revealing the secret of his superhuman strength.
| Female | Arabic |
| Dinah | Alice in Wonderland's cat | Female | Hebrew |
| Dorian | place name | Male | Greek |
| Doris | a dorian woman, of the sea | Female | Greek |