| N A M E | O R I G I N | M E A N I N G |
| Cappi | Italian | Luck. |
| Captain | English | He who is in charge. |
| Car | Celtic | Fighter. |
| Caradawg | Welsh | Legendary father of Eudav. |
| Caradog | Welsh | Variant of Caradoc: Affection; amiable. |
| Caraidland | Scottish | From the land between the streams. |
| Caramichil | Gaelic | Friend of Saint Michael. |
| Carbry | Celtic | Charioteer. |
| Carcer | Latin | Prisoner. |
| Carden | Celtic | from the black fortress |
| Cardew | Celtic | From the black fort. |
| Careah | Biblical | Bald, ice. |
| Carel | French | strong |
| Carey | Latin | dear, pleasant stream |
| Cargan | Celtic/Gaelic | Little Rock |
| Carl | Teutonic | one who is strong, man |
| Carlatun | English | From Carl's farm. |
| Carleton | Old English | Carl's town |
| Carlie | Gaelic | Small champion. |
| Carlin | Gaelic | little champion |
| Carlino | Italian | Manly. |
| Carlisle | English | From the protected tower; from the walled city. Also a place name in Britain. |
| Carlo | French | Strong. |
| Carlomagno | Spanish | Charles the Great. |
| Carlos | Spanish | From the name CARL |
| Carlow | Celtic/Gaelic | Quadruple Lake |
| Carlson | English | Variant of Carlton 'free men's town.'. |
| Carlton | English | Town of Charles |
| Carlyle | Old English | Carl's island |
| Carmel | English | Variant of Carmine: Garden. |
