| Mittelsächsisches Theater | Mittelsächsisches Theater | Germany, Döbeln, Theaterstraße 7 | 1995-04-09 | -- | 1995 | 1 | |
| Matsuyama-shi sōgō komyunitisentā | Matsuyama-shi sōgō komyunitisentā (Matsuyama City Community Center) | Japan, Matsuyama, Japan, 〒790-0012 Ehime, Matsuyama, Minatomachi, 7 Chome−５ | 2010-03-09 | 2010-03-10 | 2010 | 1 | |
| Marmorhaus | Marmorhaus | Germany, Berlin, Kurfürstendamm 236 | 1919-04-06 | -- | 1919 | 1 | |
| Mezőtúr | Mezőtúr | Hungary, Mezőtúr | 1890-04-09 | -- | 1890–1930 | 6 | |
| Mannheim | Mannheim | Germany, Mannheim | -- | -- | | | |
| Mariehamn | Mariehamn | Finland, Åland Islands | 1999-10-09 | 1999-10-24 | 1999 | 1 | |
| Maison des Arts | Maison des Arts | France, Laon, 2 Place Aubry | 1999-02-05 | -- | 1999 | 1 | |
| Møringa på Karljohansvern | Møringa på Karljohansvern | Norway, Horten | 2013-08-28 | 2013-09-07 | 2013 | 1 | |
| Mitropolia Moldovei si Bucovinei | Mitropolia Moldovei si Bucovinei | Romania, Iasi, Bulevardul Ștefan cel Mare și Sfânt 16 | 2006-06-11 | -- | 2006 | 1 | |
| Merlin Színház | Merlin Színház | Hungary, Budapest, Gerlóczy utca 4. | 2001-05-12 | 2005-05-24 | 2001–2009 | 3 | |
| Main Theatre, University of California | Main Theatre, University of California | United States of America, Davis, 1 Shields Ave | 1992-03-05 | 2000-12-10 | 1992–2000 | 3 | |
| Murray Hill Theatre | Murray Hill Theatre | United States of America, New York, 160 E. 34th Street | 1905-04-30 | -- | 1905 | 2 | |
| Micşuneştii Mari | Micşuneştii Mari | Romania, Micşuneştii Mari | -- | -- | | | |
| Mundford Village Hall | Mundford Village Hall | England, Mundford Thetford Norfolk, St Leonards Street | 2007-12-04 | -- | 2007 | 1 | |
| Mankato | Mankato | United States of America, Mankato | 1903-11-09 | 1903-11-09 | 1903 | 1 | |
| Moustier, Le | Le Moustier | France, Thorigny-sur-Marne, 1 Rue du Moustier | 2017-03-17 | -- | 2017 | 1 | |
| Monsummano Terme | Monsummano Terme | Italy, Monsummano Terme | 2016-03-10 | -- | 2016 | 1 | |
| Murighiol | Murighiol | Romania, Murighiol | -- | -- | | | |
| Munich | Munich | Germany, Munich | 1993-11-19 | 1993-11-20 | 1993 | 1 | |
| Moskovskij dramatieeskij teatr imeni N. Baumana | Moskovskij dramatieeskij teatr imeni N. Baumana | Russia, Moscow | 1938-10-05 | -- | 1938 | 1 | |
| Megárou – To Mégaro Mousikís Athinón | Megárou – To Mégaro Mousikís Athinón (Megaron - The Athens Concert Hall) | Greece, Athens, Megaron Underground Vas. Sophias & Kokkali sts | 2020-02-01 | 2020-02-29 | 2020 | 1 | |
| Minerva Theatre | Minerva Theatre | England, Chichester, West Sussex, Oaklands Park | 1994-06-02 | 2019-09-28 | 1994–2019 | 4 | |
| Moser Theatre, Wadham College | Moser Theatre, Wadham College | England, Oxford, Parks Rd | 2005-11-15 | 2005-11-19 | 2005 | 1 | |
| Manzanares | Manzanares | Spain, Manzanares | 2010-03-20 | -- | 2010 | 2 | |
| Mikhailovsky Theatre | Mikhailovsky Theatre | Russia, St. Petersburg, Arts Square | 1878-11-20 | -- | 1878 | 1 | |
| Metropolitan Opera House | Metropolitan Opera House | United States of America, New York, Lincoln Center Plaza | 1923-10-29 | -- | 1923 | 1 | |
| Marquam Grand Theatre | Marquam Grand Theatre | United States of America, Portland | 1904-01-27 | 1904-01-28 | 1904 | 1 | |
| Mezinárodní festival Divadlo | Mezinárodní festival Divadlo | Czech Republic, Plzeň, Pražská 19 | 2007-09-20 | -- | 2007 | 1 | |
| Münchner Volkstheater | Münchner Volkstheater | Germany, Munich, Brienner Str. 50 | 2002-03-01 | 2013-03-02 | 2002–2013 | 7 | |
| Mátray Béla Társulata | Mátray Béla Társulata | Romania, Arad | -- | -- | | | |
| Mainfranken Theater Würzburg | Mainfranken Theater Würzburg | Germany, Würzburg, Theaterstraße 21 | 2013-01-19 | -- | 2013 | 1 | |
| Montwhite | Montwhite | United States of America, Burlington | 1909-04-26 | 1909-04-26 | 1909 | 1 | |
| Mercedes Cotner Park | Mercedes Cotner Park | United States of America, Cleveland, West 95th Street and Maywood Avenue | 2011-08-04 | -- | 2011 | 1 | |
| McKissick's Opera House | McKissick's Opera House | United States of America, Reno | 1904-01-16 | 1907-01-09 | 1904–1907 | 3 | |
| Mainfranken Theatre | Mainfranken Theatre | Germany, Wurzburg, Fürth, Theaterstraße 21 | 2006-10-01 | 2007-04-13 | 2006 | 2 | |
| Maison des arts de Laval | Maison des arts de Laval | Canada, Laval, 1395 boulevard de la Concorde | 2016-10-07 | 2016-10-09 | 2016 | 1 | |
| Music Hall | Music Hall | United States of America, Akron | 1908-04-10 | 1908-04-10 | 1908 | 1 | |
| Mullion School | Mullion School | England, Mullion, Helston, Meaver Rd, | 2013-10-11 | 2013-10-12 | 2013 | 1 | |
| Maihaugsalen | Maihaugsalen | Norway, Lillehammer, Maihaugvegen 1 | 1928-05-17 | 2020-11-05 | 1928–2022 | 15 | |
| Münchner Kammerspiele | Münchner Kammerspiele | Germany, Munich, Maximilianstraße 28 | 1900-11-08 | 2023-03-02 | 1900–2022 | 31 | |
| Moskovski dramatičeski teatr imeni A. Puškina | Moskovski dramatičeski teatr imeni A. Puškina | Russia, Moscow, Tverskoy Blvd, 23 | -- | 2019-05-18 | 2018 | 2 | |
| Moson | Moson | Hungary, Mosonmagyaróvár | 1926-03-16 | -- | 1926 | 1 | |
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