| Name | Meaning | Gender | Origin |
|---|
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Clover | Clover
| Female | |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Cocoa | cocoa Jumbo | Female | Color |
| Coconut | Edible white flesh of the coconut palm tree. | Unisex | |
| Cookie | A small flat, crisp cake | Female | |
| Copper | A reddish brown metal - as in copper penny coins. Also slang for a police officer. | Female | Word |
| 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 |
| Cotton | | Male | Hebrew |
| Cricket | A leaping insect | Female | Nature |
| Cuddles | To nestle or snuggle. | Unisex | |
| Cupcake | Small cake baked in a cup shaped container | Unisex | |
| Cutey | | Female | Hebrew |
| Cutie | A cute character. | Female | |
| Cyprus | Cypress Tree | Male | English |
| Daisy | Day's eye. A flower name.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Daphne | laurel, bay tree, victory | Female | Greek |
| Dee Dee | | Unisex | Hebrew |
| Dexter | dyer, right-handed | Male | Latin |
| Didi | Determined Advocate Of The People | Female | German |