| Name | Meaning | Gender | Origin |
|---|
| Casey | brave, watchful | Male | Irish |
| Cassandra | prophet of doom | Female | Greek |
| Catherine | pure | Female | Greek |
| Cathy | Form of the Greek Catherine meaning pure.
| Female | English |
| Cecil | blind | Male | Latin |
| Chad | Defence
| Male | English |
| Charlene | Small Beauty | Female | English |
| Charles | manly, strong | Male | |
| Charlie | a man: variant of Carl.
| Male | English |
| Charlotte | petite and femininewoman, feminine of Charles | Female | |
| Cheryl | beloved, dear | Female | Modern |
| Chester | fortress, walled town, | Male | Latin |
| Chris | one who carries Christ | Male | English |
| Christian | annointed, follows Christ | Male | Greek |
| Christina | anointed | Female | Greek |
| Christine | anointed | Female | |
| Christopher | Christ-bearer | Male | Greek |
| Christy | Greek and Latin, bearer of Christ | Male | Greek |
| Cindy | Abbreviation of Cynthia and Lucinda.
| Female | English |
| Claire | bright, clear | Female | |
| Clara | bright, clear | Female | Latin |
| Clarence | bright | Male | Latin |
| Claude | Lame.
| Male | |
| Claudia | Feminine of Claude.
| Female | Latin |
| Clayton | place with good clay | Male | English |