rumänische Ortsnamen
| Macaresti |
| Macau |
| Maceu |
| Maccicasu |
| Mada |
| Madaras (bei Miercurea Ciuc) |
| Madaras (bei Tirgu Mures) |
| Madaraseni |
| Mag |
| Magherani |
| Magherus (bei Gheorgheni) |
| Magherus (bei Tirnaveni) |
| Magina |
| Magoaja |
| Magura (bei Brasov) |
| Magura (bei Simeria) |
| Magura (bei Alba Iulia) |
| Magura (bei Tirgu Lapus) |
| Magura Ierii |
| Magura Ilvei |
| Magura-Toplita |
| Magurele |
| Magureni |
| Maguri-Racatau |
| Mahaceni |
| Mahal |
| Maia (bei Sovata) |
| Maia (bei Dej) |
| Maiad |
| Maieru |
| Maierus |
| Maioresti |
| Malaiesti |
| Malin |
| Malincrav |
| Malna-Bai |
| Malnas |
| Malut |
| Mamaligani |
| Manarade |
| Manastirea |
| Manastireni |
| Manasturel |
| Manasturu Romanesc |
| Manerau |
| Manic |
| Marasesti |
| Marcesti |
| Marculeni |
| Marcusa |
| Margau |
| Margineni (bei Fagaras) |
| Margineni (bei Sebes) |
| Marisel |
| Mariselu |
| Marpod |
| Martanus |
| Martineni |
| Martinesti (bei Deva) |
| Martinesti (bei Turda) |
| Martinie |
| Martinis |
| Martonca |
| Masca |
| Matei (bei Cimpeni) |
| Matei (bei Bistrita) |
| Mateias |
| Medias |
| Medisoru Mare |
| Medisoru Mic |
| Medves |
| Mera |
| Mercheasa |
| Mereni |
| Meresti |
| Mereteu |
| Merghindeal |
| Meria |
| Merisor (bei Petrosani) |
| Merisor (bei Brad) |
| Merisor (bei Tirgu Mures) |
| Merisori |
| Merisoru de Munte |
| Mermezeu-Valeni |
| Mesentea |
| Mesteacan (bei Hateg) |
| Mesteacan (bei Brad) |
| Mesteacanu |
| Metes |
| Metis |
| Matiseni |
| Matisesti (bei Cimpeni) |
| Matirici |
| Mescreac |
| Mesendorf |
| Mestera |
| Mica (bei Tirnaveni) |
| Mica (bei Dej) |
| Micanesti |
| Micasasa |
| Micesti (bei Alba Iulia) |
| Micesti (bei Turda) |
| Micestii de Cimpie |
| Micfalau |
| Micloslaca |
| Miclosoara |
- |
deutsche Ortsnamen
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Schardörfel |
| - |
| - |
| Maniersch |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Mogura |
| - |
| Schierling |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Maier |
| Nußbach |
| - |
| - |
| - |
| Malmkrog |
| - |
| - |
| - |
| - |
| Donnersmarkt |
| - |
| Klosterdorf |
| - |
| - |
| Minerau |
| - |
| - |
| - |
| -- |
| - |
| - |
| - |
| - |
| Marisel |
| Großendorf |
| Marpod |
| - |
| - |
| - |
| - |
| - |
| Sankt Marten |
| - |
| - |
| - |
| Mathesdorf |
| Mattersdorf |
| Mediasch |
| - |
| - |
| - |
| - |
| Streitfort |
| - |
| - |
| - |
| Mergeln |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Allerheiligen |
| - |
| - |
| - |
| - |
| Martinsdorf |
| - |
| - |
| - |
| - |
| Meschendorf |
| Meisterhausen |
| - |
| - |
| - |
| Fägendorf |
| Kleindörfel |
| - |
| - |
| Miko-Neudorf |
| - |
| - |
|
ungarische Ortsnamen
| - |
| Mako |
| Macso |
| Magyarmacskas |
| Moden |
| Csikmadaras |
| Mezömadaras |
| - |
| Mag |
| Nyaramagyaros |
| Magyaros |
| Kükkülömagyaros |
| Muzsina |
| - |
| - |
| - |
| - |
| Kishegy |
| - |
| Magura |
| - |
| Serling |
| - |
| Szamosfö |
| Aranyosmahacs |
| Mohaly |
| Maja |
| Manya |
| Nyomat |
| Major |
| Szaszmagyaros |
| Maroslaka |
| - |
| Almasmalom |
| Almakerek |
| Malnas-Fürdö |
| Malnas |
| Omlasalya |
| Mameligany |
| Monora |
| Szentbenedek |
| Magyargyeromonostor |
| Monostorszek |
| Felsomonostor |
| Magyarosd |
| Manyik |
| Marosesd |
| - |
| Marcod |
| Kezdimarkosfalva |
| Meregyo |
| - |
| - |
| Havasnagyfalu |
| Sajomagyfalu |
| Marpod |
| Kezdimartonos |
| Kezdimartonfalva |
| - |
| Pusztaszentmarton |
| - |
| Homorodszentmarton |
| Martonka |
| Macsakö |
| - |
| Szaszmate |
| Matefalva |
| Medgyes |
| Nagymedeser |
| Kismedeser |
| Nagymedves |
| Mera |
| Mirkvasar |
| Kezdialmas |
| Homorodalmas |
| Meritä |
| Morgonda |
| Kekesfalva |
| - |
| - |
| Pusztaalmas |
| - |
| - |
| Nyirmezö |
| Kismindszent |
| - |
| Meztakon |
| Almasnyires |
| Metesd |
| Szaszmartonfalva |
| Matisfalva |
| - |
| Nayaradköszvenyes |
| Megykerek |
| Mese |
| Marhaza |
| Mikefalva |
| Mikehaza |
| - |
| Mikeszasza |
| Ompolykisfalu |
| Mikes |
| Mezökecsed |
| Mikoujfalu |
| Nujkiskaja |
| Miklosvar |
|
