| Crag | - | English Name | Cragen | - | Welsh Name |
| Craig | - | Irish Name | Cranford | - | Teutonic Name |
| Cranley | - | Teutonic Name | Crannog | - | Scottish Name |
| Cranston | - | Teutonic Name | Crawford | - | Teutonic Name |
| Crayton | - | Scottish Name | Creed | - | Teutonic Name |
| Creighton | - | Scottish Name | Crescens | - | Biblical Name |
| Crew | - | English Name | Crew | - | Teutonic Name |
| Crewe | - | English Name | Criostoir | - | Gaelic Name |
| Crispin | - | Swiss Name | Crispus | - | Biblical Name |
| Cristian | - | Romanian Name | Cristiano | - | Latin Name |
| Cristiano | - | Portuguese Name | Cristina | - | Philippines Name |
| Cristo | - | Greek Name | Cristobal | - | Spanish Name |
| Cristófer | - | Icelandic Name | Cristoforo | - | Italian Name |
| Cristóvão | - | Portuguese Name | Crockett | - | Teutonic Name |
| Crom | - | Scottish Name | Cromwell | - | Scottish Name |
| Cronan | - | Gaelic Name | Crosby | - | English Name |
| Cross | - | Teutonic Name | Crudel | - | Arthurian Name |
| Cruim | - | Scottish Name |
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