| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Collins | ['kɔlinz] | |||
| COLUMBA | ko-LOOM-ba (Late Roman), kə-LUM-bə (English) | Late Roman | ||
| Combs | [ku:mz] | |||
| Compton | ['kɔmptən] | |||
| Connelly | ['kɔnəli] | |||
| CONNIE | KAHN-ee | English | ||
| Corey | ['kəʊri] | |||
| Cornett | [kɔ:'net] | |||
| Cortes | ['kɔ:tes] | |||
| Cortney | ['kɔ:tni] | |||
| CORTNEY | KORT-nee | English | ||
| Cottrell | ['kɔtrəl] | |||
| Couch | [kautʃ] | |||
| Coulter | ['kəultə] | |||
| Courtney | ['kɔrtnl] |