| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Conchita | kon-CHEE-tah | Spanish | ||
| Concordia | kən-KAWR-dee-ə (English) | Roman Mythology | ||
| Conrad | KAHN-rad (English), KAWN-raht (German) | English, German, Ancient Germanic | ||
| Conrado | kon-RAH-dho | Spanish | ||
| Consolata | kon-so-LAH-tah | Italian | ||
| ConstanȚA | - | Romanian | ||
| Constans | - | Late Roman | ||
| Constantia | - | Late Roman | ||
| Constantin | kon-stahn-TEEN (Romanian), kawn-stawn-TEN (French) | Romanian, French | ||
| Constantina | - | Late Roman | ||
| Constantinus | - | Late Roman | ||
| Constantius | - | Late Roman | ||
| Constanza | kon-STAHN-thah (Spanish), kon-STAHN-sah (Latin American Spanish) | Spanish | ||
| Constanze | - | German | ||
| Consuela | kon-SWE-lah | Spanish |