| Name | Meaning | Gender | Origin |
|---|
| Clay | adhere, mortal | Male | English |
| Clifford | Lives by the ford near the cliff
| Male | English |
| Clive | Cliff Dweller | Male | English |
| Cloud | | Male | Hebrew |
| Colin | Strong and virile; victorious army; youth, child, victor | Male | English |
| Conrad | brave counsel | Male | |
| Constance | steadfastness | Female | English |
| Cooper | Barrel maker | Male | English |
| Corbin | from the movie The Fifth Element | Male | Latin |
| Cordelia | In Shakespeare's King Lear a woman of rare honesty.
| Female | Latin |
| Cornelius | horn | Male | Latin |
| Cosette | little thing | Female | |
| Cosmo | Order, universe.
| Male | Italian |
| Crash | To smash into things, to break or dash to pieces. To join a party without invitation. | Unisex | |
| Crick | | Unisex | Hebrew |
| Cujo | | Unisex | Hebrew |
| Curtis | courteous, polite | Male | |
| Da Vinci | | Unisex | Hebrew |
| Daisy | Day's eye. A flower name.
| Female | |
| Daisy | Day's eye. A flower name.
| Female | |
| Dalton | From the farm in the dale
| Male | English |
| Daniel | my judge is the Lord | Male | Hebrew |
| Dante | lasting | Male | Latin |
| Darcy | from Arcy | Male | English |
| Daria | Rich
| Female | Feminine |