| Christin | | kris-TEEN (Swedish, German) | Swedish, Norwegian, Danish, German | |
| Christina | | kris-TEEN-ə (English), kris-TEE-nah (German, Swedish, Dutch) | English, German, Swedish, Norwegian, Danish, Dutch | |
| Christine | | krees-TEEN (French), kris-TEEN (English), kris-TEE-nə (German, Dutch) | French, English, German, Swedish, Norwegian, Danish, Dutch | |
| Christoph | | KRIS-tawf | German | |
| Clara | | KLAH-rah (Italian, German, Spanish), KLER-ə (English), KLAR-ə (English) | Italian, German, Spanish, Portuguese, Catalan, Romanian, English, Swedish, Danish, Late Roman | |
| Claudia | | KLAW-dee-ə (English), KLOW-dee-ah (German, Dutch), KLOW-dyah (Italian, Spanish, Romanian) | English, German, Dutch, Italian, Spanish, Romanian, Biblical, Ancient Roman | |
| Claus | | KLOWS | German, Danish | |
| Clemens | | KLE-mens (German) | German, Dutch, Swedish, Norwegian, Danish, Late Roman | |
| Clodovicus | | - | Ancient Germanic (Latinized) | |
| Clothildis | | - | Ancient Germanic (Latinized) | |
| Clovis | | KLO-vis (English), klo-VEES (French) | Ancient Germanic (Latinized), French | |
| Colobert | | - | Ancient Germanic | |
| Conrad | | KAHN-rad (English), KAWN-raht (German) | English, German, Ancient Germanic | |
| Constanze | | - | German | |
| Cora | | KAWR-ə (English) | English, German, Greek Mythology (Latinized) | |