| Name | Meaning | Gender | Origin |
|---|
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Clio | praise, muse of history | Female | Greek |
| Cobweb | | Unisex | Hebrew |
| Comet | A celestial body | Female | Nature |
| 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 |
| Corinna | maiden | Female | Greek |
| Cosmic | | Unisex | Hebrew |
| Crookshanks | | Unisex | Hebrew |
| Crookshanks | Hermione's cat in the Harry Potter books | Unisex | |
| Cupcake | Small cake baked in a cup shaped container | Unisex | |
| Custard | A dessert made from milk and eggs, creamy yellow in appearance. | Unisex | |
| Dae | | Female | |
| Dagda | | Unisex | Hebrew |
| Daisy | Day's eye. A flower name.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Daphne | laurel, bay tree, victory | Female | Greek |
| Daria | Rich
| Female | Feminine |
| Debbie | Bee. Deborah was the Biblical prophetess who summoned Barak to battle against an army of invaders. After the battle she wrote a victory song which is part of the Book of Judges.
| Female | Short |
| Delia | visible from delos | Female | Greek |
| Della | German, noble | Female | English |
| Denis | Mountain Of Zeus | Unisex | French |
| Devi | resides in heaven | Female | Sanskrit |
| Dickens | | Unisex | Hebrew |