rumänische Ortsnamen
| Miercurea-Ciuc |
| Miercurea Nirajului |
| Miercurea Sibiului |
| Mierta |
| Mighindoala |
| Mihaiesti |
| Mihaileni (bei Brad) |
| Mihaileni (bei Miercurea Ciuc) |
| Mihaileni (bei Medias) |
| Mihaileni (bei Ordoheiu Sec.) |
| Mihailesti |
| Mihai Viteazu (bei Turda) |
| Mihai Viteazu (bei Rupea) |
| Mihalt |
| Mihesu de Cimpie |
| Mihoesti |
| Mijlocenii Birgaului |
| Milas |
| Milasel |
| Miluani |
| Mindra (bei Fagaras) |
| Mindra (bei Sibiu) |
| Minele Lueta |
| Miontia |
| Mintiu Gherlei |
| Mintiu |
| Miraslau |
| Mirsa |
| Misentea |
| Mititei |
| Mitresti |
| Moacsa |
| Moara de Jos |
| Moardas |
| Mociu |
| Mocod |
| Moglanesti |
| Mogoaia |
| Mogos |
| Mogos-Birlesti |
| Mogoseni |
| Mohu |
| Moieciu de Jos |
| Moieciu de Sus |
| Moldovenesti |
| Monariu |
| Monor |
| Morareni (bei Odorheiu Sec.) |
| Morareni (bei Reghin) |
| Moraresti |
| Morau |
| Moresti |
| Moristi |
| Morlaca |
| Mortesti |
| Morut |
| Mosna |
| Mosuni |
| Motis |
| Movile |
| Mugeni |
| Mugesti |
| Mujna |
| Muncel (bei Tirgu Lapus) |
| Muncel (bei Dej) |
| Muncelu |
| Muncelu Mare |
| Munceu Mic |
| Muncesti |
| Muntele Baisorii |
| Muntele Boclui |
| Muntele Cacovei |
| Muntele Filii |
| Muntele Rece |
| Muntele Sacelului |
| Mura Mare |
| Mura Mica |
| Mureni |
| Mureseni |
| Muresenii Birgaului |
| Muresenii de Cimpie |
| Murgesti |
| Murgusa |
| Musca |
- |
deutsche Ortsnamen
| Szeklerburg |
| - |
| Reußmarkt |
| - |
| Engenthal |
| - |
| - |
| - |
| Schaldorf |
| - |
| - |
| - |
| Zoltendorf |
| Michelsdorf |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Eisenbergwerk |
| - |
| Deutschendorf |
| Rumänisch Baierdorf |
| - |
| - |
| - |
| Kleindörfchen |
| - |
| - |
| - |
| Mardisch |
| - |
| Makendorf |
| - |
| - |
| - |
| - |
| - |
| Moichen |
| Moesch |
| Obermoesch |
| Burgdorf |
| Minarken |
| Mindendorf |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| - |
| Moritzdorf |
| Meschen |
| - |
| Mortesdorf |
| Hundertbücheln |
| - |
| - |
| - |
| - |
| Muncsel |
| Muncsel |
| - |
| - |
| - |
| Erzdorf |
| - |
| Kakowa Gebirge |
| - |
| - |
| - |
| - |
| - |
| Neuflaigen |
| - |
| - |
| - |
| - |
| - |
| - |
|
ungarische Ortsnamen
| Csikszereda |
| Nyaradszereda |
| Szerdahely |
| Nyerce |
| Ingodaly |
| - |
| - |
| Csikszentmihaly |
| Salfalva |
| Szekelyszentmihaly |
| Nadasszentmihalytelke |
| Also- Felsöszentmihalyfalva |
| Zoltany |
| Mihalcfalva |
| Mezömehes |
| - |
| Közepborgo |
| Nagynyulas |
| Kisnyulas |
| Milvan |
| - |
| Szeptelek |
| Rokavaros |
| Marosnemeti |
| Szamosujvarnemeti |
| Olahnemeti |
| Miriszlo |
| - |
| Csikmindszent |
| Mittye |
| Nyaradszentmarton |
| Maksa |
| - |
| Mardos |
| Mocs |
| Makod |
| Moglan |
| - |
| - |
| - |
| Szamosmagasmart |
| - |
| Alsomoecs |
| Felsömoecs |
| Varfalva |
| Malomarka |
| - |
| Malomfalva |
| Marosmonosfalu |
| - |
| Moro |
| Malomfalva |
| Hurubak |
| Marotlaka |
| - |
| Szaszmoric |
| Muszna |
| Szekelymoson |
| Martontelke |
| Szaszhalom |
| Bögöz |
| - |
| Muzsna |
| Kishovas |
| Hegyköz |
| - |
| - |
| - |
| - |
| Kisbanyahavas |
| Bikalathavas |
| Kakovahavas |
| Felsöfülöhavas |
| Hideghavas |
| Assonyfelhavas |
| Nagyszederjes |
| Kissderjes |
| Szederjes |
| Megyesfalva |
| Marosborgo |
| Oboz |
| Nyaradszentbenedek |
| - |
| Muska |
|
