| Name | Meaning | Gender | Origin |
|---|
| Copper | A reddish brown metal - as in copper penny coins. Also slang for a police officer. | Female | Word |
| Cordelia | In Shakespeare's King Lear a woman of rare honesty.
| Female | Latin |
| Cosmo | Order, universe.
| Male | Italian |
| Costco | | Unisex | Hebrew |
| Couragous | | Unisex | Hebrew |
| Craddock | Beloved | Unisex | Welsh |
| Cricket | A leaping insect | Female | Nature |
| Crumbs | A small fragment of cake or biscuit. | Unisex | |
| Crystal | Variant of Christiana. Follower of Christ.
| Female | |
| Crystal | Variant of Christiana. Follower of Christ.
| Female | |
| Cuddles | To nestle or snuggle. | Unisex | |
| Cupcake | Small cake baked in a cup shaped container | Unisex | |
| Curran | descendant of Curran | Male | Irish |
| Cutey | | Female | Hebrew |
| Cyclops | one eyed monster | Male | |
| Czar | Title for male Russian Emperor | Unisex | |
| D.C. | Dynamite Companion | Unisex | |
| Dabney | from Aubigny | Male | |
| Daenerys | | Female | Hebrew |
| Daffy Duck | | Unisex | Hebrew |
| Daisy | Day's eye. A flower name.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Dakota | Friend: ally. Tribal name.
| Female | Place-name |
| Dale | Lives in the valley
| Male | English |
| Dallas | Dwells by the waterfall
| Male | Place-name |