| Cassiopea | | ka-see-ə-PEE-ə (English) | Greek Mythology (Latinized) | |
| Cassiopeia | | ka-see-ə-PEE-ə (English) | Greek Mythology (Latinized) | |
| Castor | | KAS-tər (English) | Greek Mythology (Latinized) | |
| Cephalus | | - | Greek Mythology (Latinized) | |
| Cepheus | | - | Greek Mythology (Latinized) | |
| Cerberus | | SUR-bə-rəs (English) | Greek Mythology (Latinized) | |
| Circe | | SUR-see (English) | Greek Mythology (Latinized) | |
| Clio | | KLEE-o (Italian) | Greek Mythology (Latinized), Italian | |
| Clotho | | - | Greek Mythology (Latinized) | |
| Clytemnestra | | klie-təm-NES-trə (English) | Greek Mythology (Latinized) | |
| Clytia | | - | Greek Mythology (Latinized) | |
| Coeus | | - | Greek Mythology (Latinized) | |
| Cora | | KAWR-ə (English) | English, German, Greek Mythology (Latinized) | |
| Crius | | - | Greek Mythology (Latinized) | |
| Cronus | | KRO-nəs (English) | Greek Mythology (Latinized) | |