| Name | Meaning | Gender | Origin |
|---|
| Conner | desire, wise aid, wolf-lover | Unisex | |
| Connie | Constant, Firm | Male | English |
| Conrad | brave counsel | Male | |
| Constance | steadfastness | Female | English |
| Contessa | | Unisex | Hebrew |
| Cooper | Barrel maker | Male | English |
| Corazon | Heart | Unisex | Filipino |
| Cordelia | In Shakespeare's King Lear a woman of rare honesty.
| Female | Latin |
| Cory | from the hollow | Male | Irish |
| Cosmo | Order, universe.
| Male | Italian |
| Crawford | ford where crows gather | Male | English |
| Creed | Creed | Unisex | English |
| Creola | named for the Jimmy Buffett song | Unisex | |
| Crescent | one who creates | Female | |
| Cris | Anointed, Follower Of Christ | Unisex | English |
| Crockett | large curl | Male | English |
| Cruz | cross | Male | Spanish |
| Curran | descendant of Curran | Male | Irish |
| Curtis | courteous, polite | Male | |
| Cyrano | from cyrene | Male | Greek |
| Cyril | lordly, proud | Male | Greek |
| Cyrus | throne | Male | Persian |
| 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 | |