| Name | Meaning | Gender | Origin |
|---|
| Chuck | a man: variant of Carl.
| Male | English |
| Church | | Unisex | Hebrew |
| Clarence | bright | Male | Latin |
| Claude | Lame.
| Male | |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Cleopatra | glory of the father | Female | Greek |
| Clovis | clover | Male | Teutonic |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Coricopat | | Unisex | Hebrew |
| Country | | Unisex | Hebrew |
| Crystal | Variant of Christiana. Follower of Christ.
| Female | |
| Crystal | Variant of Christiana. Follower of Christ.
| Female | |
| Curly | Having curls or wavy hair. | Unisex | |
| Custard | A dessert made from milk and eggs, creamy yellow in appearance. | Unisex | |
| Danny | God Is My Judge | Unisex | English |
| Delilah | Desired. Languishing. The Biblical Delilah tempted Samson into revealing the secret of his superhuman strength.
| Female | Arabic |
| Demeter | earth mother | Female | Greek |
| Denzel | from the high stronghold | Male | Cornish |
| Deuce | | Male | Hebrew |
| Dewey | Diminutive of Dafydd, Welsh variation of David | Male | Anglicized |
| Diana | divine | Female | Latin |
| Dice | Small cubes with sides numbered 1 to 6 used in games. | Male | Word |