| Name | Meaning | Details |
|---|---|---|
| Colby | "From Kolis Farm" | View Details |
| Coligny | From Coligny | View Details |
| Colston | From The Coal Town | View Details |
| Conyers | From Coignieres In France | View Details |
| Corby | "From Corcs Farm" | View Details |
| Corinthia | From Corinth | View Details |
| Cornell | From Cornhill | View Details |
| Costa | From The Coast | View Details |
| Craig | From The Crag | View Details |
| Crawford | From The Crow Ford | View Details |
| Cress | From The Top Of The Hill | View Details |
| Cuba | From Cuba | View Details |
| Cúc | From Cuba | View Details |
| Curry | From The Wet Plain | View Details |
| Cynara | From The Island Of Zinara | View Details |