| Brynhild | | - | Norwegian, Norse Mythology | |
| Brynhildr | | - | Norse Mythology, Ancient Scandinavian | |
| Byelobog | | - | Slavic Mythology | |
| CÁEl | | - | Irish Mythology | |
| CÉIbhfhionn | | - | Irish Mythology | |
| CÚChulainn | | - | Irish Mythology | |
| Cadmus | | - | Greek Mythology (Latinized) | |
| Cai (2) | | - | Welsh Mythology, Arthurian Romance | |
| Calliope | | kə-LIE-ə-pee (English) | Greek Mythology (Latinized) | |
| Callisto (2) | | kə-LIS-to (English) | Greek Mythology (Latinized) | |
| Calypso | | kə-LIP-so (English) | Greek Mythology (Latinized) | |
| 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 | |
| Cardea | | - | Roman Mythology | |
| Carme (2) | | - | Greek Mythology (Latinized) | |
| Cassandra | | kə-SAN-drə (English), kə-SAHN-drə (English), kahs-SAHN-drah (Italian) | English, Spanish, Portuguese, Italian, French, German, Greek Mythology (Latinized) | |