| Name | Meaning | Gender | Origin |
|---|
| Cindy | Abbreviation of Cynthia and Lucinda.
| Female | English |
| Cinnamon | | Female | Hebrew |
| Claire | bright, clear | Female | |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Cookie | A small flat, crisp cake | Female | |
| Cordial | | Unisex | Hebrew |
| Cuddles | To nestle or snuggle. | Unisex | |
| Cuddly | | Unisex | Hebrew |
| Cupcake | Small cake baked in a cup shaped container | Unisex | |
| Cutie | A cute character. | Female | |
| Cutie Patootie | | Unisex | Hebrew |
| Cutie Pie | | Unisex | Hebrew |
| Dahlia | Flower Named For Botanist A. Dahl | Female | Greek |
| Daisy | Day's eye. A flower name.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Darling | | Unisex | Hebrew |
| Dawn | Early riser
| Female | Word |
| Dee | Dark | Unisex | Welsh |
| Della | German, noble | Female | English |
| Diamond | In The Rough | Female | |
| Doll | | Female | Hebrew |