| Bjoern | | - | Swedish, Norwegian, Danish | |
| Bo (1) | | - | Swedish, Danish | |
| Bodil | | - | Swedish, Norwegian, Danish | |
| Brita | | BRIT-ah (Swedish), BREE-tah (Finnish) | Swedish, Norwegian, Danish, Finnish | |
| Britt | | - | Swedish, Norwegian, Danish | |
| Britta | | - | Swedish, Norwegian, Danish | |
| 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 | |