| Mafalda | | mah-FAHL-dah (Italian), mə-FAL-də (Portuguese) | Italian, Portuguese | |
| Magda | | MAHK-dah (German), MAHKH-dah (Dutch), MAHG-dah (Polish) | German, Dutch, Swedish, Norwegian, Danish, Czech, Polish, Croatian, Romanian, Portuguese | |
| Magomed | | - | Dagestani, Chechen, Ingush | |
| Magomet | | - | Dagestani, Chechen, Ingush | |
| Mahmud | | - | Arabic, Persian, Pashto, Bengali, Indonesian, Malay | |
| Mai (1) | | - | Vietnamese | |
| Mai (2) | | mah-ee | Japanese | |
| Maia (1) | | MAY-ə (English), MIE-ə (English) | Greek Mythology, Roman Mythology, Portuguese, Georgian | |
| Maimu | | MIE-moo | Estonian | |
| Makoto | | mah-ko-to | Japanese | |
| Mamadou | | - | Western African | |
| Mami | | mah-mee | Japanese | |
| Manami | | mah-nah-mee | Japanese | |
| Manas | | - | Bengali, Indian, Assamese, Hindi | |
| Manoel | | - | Portuguese (Brazilian) | |