| Miro | | - | Slovene, Croatian | |
| Miroslav | | mee-rah-SLAHF (Russian) | Czech, Slovak, Russian, Serbian, Croatian, Slovene, Bulgarian, Macedonian, Medieval Slavic | |
| Miroslava | | mee-rah-SLAH-vah (Russian) | Czech, Slovak, Russian, Croatian, Serbian, Macedonian, Slovene, Medieval Slavic | |
| Mirta | | - | Spanish, Italian, Croatian | |
| Mislav | | - | Croatian, Medieval Slavic | |
| Mladen | | MLAH-den (Croatian, Serbian) | Croatian, Serbian, Slovene, Bulgarian, Macedonian | |
| Mladenka | | - | Croatian, Serbian | |
| Mojca | | - | Slovene, Croatian | |
| Monika | | MO-ni-kah (German), maw-NEE-kah (Polish) | German, Swedish, Norwegian, Danish, Czech, Slovak, Polish, Slovene, Croatian, Lithuanian, Latvian | |
| Morana | | - | Slavic Mythology, Croatian | |
| Muscowequan | | - | Native American, Cree | |