| Cameron | Crooked Nose | Male |
| Campbell | From The Beautiful Field | Male |
| Caradoc | Son Of Bran | Male |
| Carl | A Man | Male |
| Carlo | Manly | Male |
| Carlos | Strong | Male |
| Carney | Victorious | Male |
| Carson | Son Of Carr | Male |
| Carsten | | Female |
| Carter | Drives A Cart | Male |
| Carver | Carves Wood Or Sculpts | Male |
| Case | Variant Of Casey Alert: Vigorous. | Male |
| Casen | Alternate Spelling: Cason. | Male |
| Casey | Brave: Vigilant. | Female |
| Cashel | From Cashel | Male |
| Casper | "Friendly, Childlike, Helpful" | Male |
| Cassian | Curly-Headed. | Male |
| Castor | Myth Name (Brother Of Helen) | Male |
| Cathal | Strong In Battle | Male |
| Cayden | Fighter. Spirt Of Battle. | Male |
| Cedric | Battle Leader | Male |
| Chace | Huntsman. | Male |
| Chad | Defense | Male |
| Chance | Fortune: A Gamble. Variant Of Chauncey. | Male |
| Chancellor | Chancellor | Male |