| Cassem | Arabic name meaning 'strong' or 'firm' |
| Cassim | Arabic name meaning 'strong' or 'firm' |
| Cayman | English name derived from the word 'cayman,' meaning 'island' |
| Chakir | Arabic name meaning 'poet' or 'scholar' |
| Challita | Arabic name meaning 'young' or 'youthful' |
| Changaze | Arabic name meaning 'traveler' or 'wanderer' |
| Chawki | Arabic name meaning 'young' or 'youthful' |
| Cheik | Arabic name meaning 'old' or 'elder' |
| Chhatrapal | Ruler of the umbrella or a title of respect |
| Chief | Person in charge or leader |
| Chitnis | Title of respect in some Indian cultures |
| Churagh | Title of respect in some Indian cultures |
| Cien | Hundred in Spanish |
| Cifran | To count or calculate in Spanish |
| Codei | God is my strength in Hebrew |
| Cowie | From the Scottish surname meaning 'cow herder' |
| Cruinn | Wise or intelligent in Irish |
| Cyon | A name meaning a bright blue color. |
| Cacho | A small piece or a fragment. |
| Cactus | The Cactus Plant |
| Cadyn | Round, Son of Cad |
| Camerin | A crooked or bent nose shape. |
| Canard | Duck, Newspaper |
| Cap | A short form of the name Captain. |
| Carlester | A variant of the name Charles. |
| Carlon | From the Castle, Small Champion |
| Cartier | One who Drives Cart |
| Cartrell | A name of Old French origin. |
| Carvin | A variant of the name Carvin, possibly derived from the Old English word 'ceorfan,' meaning spear. |
| Casim | The Person who Distributes |
| Cason | Son of the righteous or pure one. |
| Castro | One who lives near a fortress. |
| Castulo | Derived from a Roman saint name. |
| Catahecassa | Black Hoof, a Shawnee leader. |
| Catalino | A variant of the name Catalin. |
| Catfish | A type of fish, often used as a metaphor for someone who is deceitful or manipulative. |
| Cazimir | Destroyer, Declaration of Peace |
| Ceaser | He who was Cut out of the Womb |
| Ceejay | Letters C Plus J |
| Cevin | Gentle, Kind, Fair |