| Name | Meaning | Gender | Origin |
|---|
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Cleopatra | glory of the father | Female | Greek |
| Clio | praise, muse of history | Female | Greek |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Colby Jack | | Unisex | Hebrew |
| 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 |
| Cosette | little thing | Female | |
| Courage | | Unisex | Hebrew |
| Creampuff | | Unisex | Hebrew |
| Cricket | A leaping insect | Female | Nature |
| 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 | |
| Cutie | A cute character. | Female | |
| Cutie Pie | | Unisex | Hebrew |
| Daisey | Day`S Eye. A Flower Name. | Unisex | English |
| Daisy | Day's eye. A flower name.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Deborah | a bee, to speak kind words | Female | Hebrew. |
| Dee | Dark | Unisex | Welsh |