| 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 | |
| Molle | | - | Medieval English | |
| Morris | | MAWR-is (English) | English, Medieval English | |
| Mstislav | | mstee-SLAHF (Russian) | Czech, Russian, Medieval Slavic | |
| Nichol | | - | Scottish, Medieval English | |
| Nicol (1) | | - | Scottish, Medieval English | |
| Nikola (1) | | - | Serbian, Croatian, Slovene, Bulgarian, Macedonian, Hungarian, Czech, Basque, Medieval Slavic | |
| Ninoslav | | - | Serbian, Croatian, Medieval Slavic | |
| Noll | | - | Medieval English | |
| NuÑO | | - | Medieval Spanish | |
| Nuno | | - | Portuguese, Medieval Portuguese | |
| Ode | | - | Medieval English | |
| Onfroi | | - | Medieval French | |