| Name | Meaning | Gender | Origin |
|---|
| Colin | Strong and virile; victorious army; youth, child, victor | Male | English |
| Comet | A celestial body | Female | Nature |
| Conan | Hound.
| Male | Irish |
| Connor | lover of hounds | Male | Irish |
| 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 |
| Cosmo | Order, universe.
| Male | Italian |
| Crookshanks | Hermione's cat in the Harry Potter books | Unisex | |
| Crookshanks | | Unisex | Hebrew |
| Cupcake | Small cake baked in a cup shaped container | Unisex | |
| Cupid | desire | Male | Latin |
| Custard | A dessert made from milk and eggs, creamy yellow in appearance. | Unisex | |
| Cyclops | one eyed monster | Male | |
| Dae | | Female | |
| Dagda | | Unisex | Hebrew |
| Daisy | Day's eye. A flower name.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Dane | from Denmark | Male | English |
| Daphne | laurel, bay tree, victory | Female | Greek |
| Dara | compassion, wisdom, angel of rains and rivers | Male | Irish |
| 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 |