| Chopper | Tool for cutting or a motorcycle |
| Choy | Chinese name meaning 'auspicious' or 'lucky' |
| Christon | Variant of Christian |
| Christoper | One who carries Christ in heart. |
| Christpher | A bearer of the Christian faith. |
| Chubby | Having a plump or rounded body shape |
| Chum | Close friend or companion |
| Cico | Italian name meaning 'wise' or 'intelligent' |
| Cinque | Italian name meaning 'five' or 'number five' |
| Cleiton | Portuguese name meaning 'victory of the people' |
| Clester | Fortified Place |
| Coach | Person who trains or guides a team or individual |
| Collie | Victory of the People |
| Conde | Spanish title meaning 'count' or 'noble' |
| Conte | French title meaning 'count' or 'noble' |
| Cordel | Cord Seller or Maker |
| Cousin | Relative, typically the child of an aunt or uncle |
| Crane | Named after the longnecked bird. |
| Creek | From the Small Stream |
| Criag | Dweller near a steep rocky cliff. |
| Crish | Variant of Kris, meaning 'follower of Christ' |
| Criss | Follower of Christ |
| Cristhian | Follower of Christ |
| Cristia | Derived from Christian, meaning follower of Christ |
| Crystian | Follower of Christ |
| Cuauhtemotzin | One who Falls Like an Eagle |
| Cuba | A Place of Abundant Fertile Land |
| Cuitlahuatzin | Divine ruler of the Aztecs. |
| Cyle | From Ancient Times |
| Daddy | Term of endearment for a father or father figure |
| DaeQuan | Variant of Daquan, meaning great and strong |
| Dago | A name meaning noble or bright. |
| Dailon | Combination of Dale and Lon, meaning peaceful valley |
| Dainis | Derived from the god of songs. |
| Dajon | Combination of Dale and Jon, meaning peaceful gift |
| Damar | Derived from Damian, meaning to subdue or tame |
| Daniyar | Variant of Daniyar, meaning God is my judge |
| Dannis | Follower of Dionysos |
| Danovan | A darkhaired little fighter. |
| Danyele | Combination of Daniel and Elle, meaning God is my judge |