| Connor | | KAHN-ər (English) | Irish, English (Modern) | |
| Conor | | KAHN-ər (English) | Irish, English, Irish Mythology | |
| ConrÍ | | - | Irish | |
| Conrad | | KAHN-rad (English), KAWN-raht (German) | English, German, Ancient Germanic | |
| Conrado | | kon-RAH-dho | Spanish | |
| ConstÂNcia | | - | Portuguese | |
| ConstanÇA | | - | Portuguese | |
| Constance | | KAHN-stənts (English), kawn-STAWNS (French) | English, French | |
| Constant | | kawn-STAWN (French), KAHN-stənt (English) | French, English (Rare) | |
| Constantine | | KAHN-stən-teen (English) | History | |
| Constanza | | kon-STAHN-thah (Spanish), kon-STAHN-sah (Latin American Spanish) | Spanish | |
| Consuela | | kon-SWE-lah | Spanish | |
| Consuelo | | kon-SWE-lo | Spanish | |
| Conway | | KAHN-way | English | |
| Cooper | | KOOP-ər, KUWP-ər | English | |