| Colten | - | Teutonic Name | Colter | - | English Name |
| Colton | - | English Name | Colton | - | Teutonic Name |
| Coltyn | - | English Name | Colum | - | Gaelic Name |
| Columb | - | Teutonic Name | Colwyn | - | Welsh Name |
| Coman | - | Algerian Name | Côme | - | Cameroon Name |
| Comfort | - | Teutonic Name | Comhghan | - | Gaelic Name |
| Comyn | - | Spanish Name | Conall | - | Celtic Name |
| Conan | - | Irish Name | Conant | - | Teutonic Name |
| Conary | - | Teutonic Name | Coniah | - | Biblical Name |
| Conlan | - | Gaelic Name | Conleth | - | Teutonic Name |
| Conley | - | Gaelic Name | Conley | - | Teutonic Name |
| Conn | - | Irish Name | Connah | - | Welsh Name |
| Connal | - | Celtic Name | Connelly | - | Teutonic Name |
| Conner | - | English Name | Connie | - | Teutonic Name |
| Connolly | - | Irish Name | Connor | - | English Name |
| Conor | - | Teutonic Name | Conrad | - | German Name |
| Conrad | - | Swiss Name |
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