| Carloman | | - | History, Ancient Germanic | |
| Carola | | kah-RO-lah (German) | Italian, German, Dutch, Swedish | |
| Carolin | | KAH-ro-leen | German | |
| Caroline | | ka-ro-LEEN (French), KER-ə-lien (English), KER-ə-lin (English), KAR-ə-lien (English), KAR-ə-lin (English) | French, English, German, Swedish, Norwegian, Danish, Dutch | |
| Carolus | | - | Ancient Germanic (Latinized) | |
| Carsten | | KAHR-sten (Low German) | Low German, Danish | |
| Cassandra | | kə-SAN-drə (English), kə-SAHN-drə (English), kahs-SAHN-drah (Italian) | English, Spanish, Portuguese, Italian, French, German, Greek Mythology (Latinized) | |
| Cathrin | | KAHT-reen | German | |
| Catrin | | KAT-rin (Welsh), KAHT-reen (German) | Welsh, German | |
| Cecilia | | sə-SEE-lee-ə (English), sə-SEEL-yə (English), che-CHEE-lyah (Italian), the-THEE-lyah (Spanish), se-SEE-lyah (Latin American Spanish), se-SEEL-yah (Danish, Norwegian), SE-see-lee-ah (Finnish) | English, Italian, Spanish, Swedish, Danish, Norwegian, Finnish, Dutch, German | |
| Chariovalda | | - | Ancient Germanic | |
| Charlotte | | shar-LOT (French), SHAHR-lət (English), shahr-LAW-tə (German), shah-LOT (Swedish), shahr-LAWT-tə (Dutch) | French, English, German, Swedish, Norwegian, Danish, Dutch | |
| Chlodochar | | - | Ancient Germanic | |
| Chlodovech | | - | Ancient Germanic | |
| Chlodulf | | - | Ancient Germanic | |