| Cai (1) | | - | Swedish, Norwegian, Danish | |
| Caj | | - | Swedish, Norwegian, Danish | |
| Caja | | - | Danish | |
| Camilla | | kə-MIL-ə (English), kah-MEEL-lah (Italian, Danish), KAH-meel-lah (Finnish) | English, Italian, Danish, Swedish, Norwegian, Finnish, German, Ancient Roman, Roman Mythology | |
| Carina (2) | | kah-REE-nah (German) | Swedish, Norwegian, Danish, German | |
| Carl | | KAHRL (German, English) | German, Swedish, Norwegian, Danish, English | |
| 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 | |
| Carsten | | KAHR-sten (Low German) | Low German, Danish | |
| Casper | | KAHS-pər (Dutch) | Dutch, Swedish, Norwegian, Danish | |
| Cathrine | | - | Swedish, Norwegian, Danish | |
| 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 | |
| Cecilie | | se-SEEL-ye (Norwegian, Danish) | Norwegian, Danish, Czech | |
| 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 | |
| Christa | | KRIS-tah (German), KRIS-tə (English) | German, Danish, English | |
| Christen (1) | | - | Danish, Norwegian | |