| Melissa | | mə-LIS-ə (English) | English, Dutch, Ancient Greek, Greek Mythology | |
| Melpomene | | - | Greek Mythology | |
| Melqart | | - | Near Eastern Mythology | |
| Melusine | | - | Mythology | |
| Menelaos | | - | Greek Mythology | |
| Menelaus | | - | Greek Mythology (Latinized) | |
| Mentor | | - | Greek Mythology | |
| Mercurius | | - | Roman Mythology | |
| Mercury | | MURK-yə-ree (English) | Roman Mythology (Anglicized) | |
| Mictlantecuhtli | | - | Aztec And Toltec Mythology | |
| Midas | | MIE-dəs (English) | Greek Mythology | |
| Mielikki | | - | Finnish Mythology | |
| Milda | | - | Lithuanian, Baltic Mythology | |
| Minerva | | mi-NUR-və (English) | Roman Mythology, English | |
| Minos | | - | Greek Mythology | |