| Mechthild | | MEKHT-hilt | German | |
| Mechtilde | | mekht-IL-də | German | |
| Medad | | - | Biblical | |
| Medea | | mə-DEE-ə (English) | Greek Mythology (Latinized), Georgian | |
| Medhat | | - | Arabic | |
| Medraut | | - | Welsh Mythology, Arthurian Romance | |
| Medrod | | - | Welsh Mythology, Arthurian Romance | |
| Medusa | | mə-DOO-sə (English) | Greek Mythology (Latinized) | |
| Meena | | - | Indian, Hindi, Marathi, Tamil | |
| Meera | | - | Indian, Hindi, Marathi, Malayalam, Tamil, Kannada | |
| Mefodiy | | - | Russian (Archaic) | |
| Mega | | ME-gah | Indonesian | |
| Megaera | | - | Greek Mythology (Latinized) | |
| Meggy | | - | Medieval English | |
| Meginfrid | | - | Ancient Germanic | |