| Mechislav | | - | Russian (Rare), Medieval Slavic | |
| Militsa | | - | Medieval Slavic | |
| Milivoj | | MEE-lee-voi (Croatian, Serbian) | Croatian, Serbian, Slovene, Medieval Slavic | |
| Milodrag | | - | Medieval Slavic (Hypothetical) | |
| Milogost | | - | Medieval Slavic | |
| Milosh | | - | Medieval Slavic | |
| Miloslav | | - | Czech, Slovak, Medieval Slavic | |
| Miloslava | | - | Czech, Medieval Slavic | |
| Mirche | | - | Macedonian, Medieval Slavic | |
| 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 | |
| Mislav | | - | Croatian, Medieval Slavic | |
| Mstislav | | mstee-SLAHF (Russian) | Czech, Russian, Medieval Slavic | |
| Nikola (1) | | - | Serbian, Croatian, Slovene, Bulgarian, Macedonian, Hungarian, Czech, Basque, Medieval Slavic | |
| Ninoslav | | - | Serbian, Croatian, Medieval Slavic | |