| Name | Meaning | Gender | Origin |
|---|
| Cain | and Able | Male | Hebrew |
| Cari | Flows Like Water | Unisex | Turkish |
| Casey | brave, watchful | Male | Irish |
| Cassie | Abbreviation of Cassandra. Unheeded prophetess. In Homer's The Iliad Cassandra's prediction of the fall of Troy was unheeded.
| Female | English |
| Catherine | pure | Female | Greek |
| Caviar | Salted fish roe. | Unisex | |
| Chaos | Kay-oss | Male | |
| Charlie | a man: variant of Carl.
| Male | English |
| Cherokee | Native American Tribe | Unisex | English |
| Chewy | Needing chewing. | Unisex | |
| Cheyenne | Native American tribe living in the North West of the USA. | Female | |
| Chloe | Fresh young blossom, Greek for blooming | Female | Greek |
| Chyna | Middle Country | Unisex | English |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Cleo | From Cleopatra - Her father's glory | Female | Greek |
| Cloud | | Male | Hebrew |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Coco | A pet name.
| Female | Spanish |
| Cody | Helpful.
| Male | English |
| 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 |
| Crimson | A deep of vivid red colour. | Female | Color |