| Main Theatre, University of California | Main Theatre, University of California | United States, Davis, 1 Shields Ave | 1992-03-05 | 2000-12-10 | 1992–2000 | 3 | |
| Mehamn | Mehamn samfunnshus | Norway, Mehamn | 1968-10-03 | -- | 1968–1970 | 2 | |
| Morosco Theatre | Morosco Theatre | United States, New York, 217 West 45th Street | 1937-12-27 | 1938-04-30 | 1937 | 1 | |
| Miłośnicy Sceny | Miłośnicy Sceny | Poland, Warsaw | 1903-02-08 | 1903-03-15 | 1903 | 1 | |
| Mátray Béla Társulata | Mátray Béla Társulata | Romania, Arad | -- | -- | | | |
| Miskolci Nemzeti Színház | Miskolci Nemzeti Színház | Hungary, Miskolc, | 1978-03-03 | -- | 1978–1990 | 3 | |
| Melhus rådhus | Melhus rådhus | Norway, Melhus, Rådhusvegen 2 | 1983-10-12 | 2015-10-10 | 1983–2022 | 13 | |
| Montfort, Le | Le Montfort | France, Paris, 106 Rue Brancion | 2018-09-18 | 2018-10-06 | 2018 | 1 | |
| Madison | Madison | United States, Madison | 1903-12-25 | 1903-12-25 | 1903 | 1 | |
| Mullion School | Mullion School | England, Mullion, Helston, Meaver Rd, | 2013-10-11 | 2013-10-12 | 2013 | 1 | |
| Middelfart Teater | Middelfart Teater | Denmark, Middelfart | 1883-10-19 | -- | 1883–1909 | 6 | |
| MIA - Museum of Islamic Art | MIA - Museum of Islamic Art | Qatar, Doha, Doha Port | 2009-05-14 | 2009-05-15 | 2009 | 1 | |
| Makedonski, Naroden, Teatar | Makedonski Naroden Teatar (Macedonian National Theatre) | Macedonia, Skopje, Iljo Vojvoda, Skopje 1000, Macedonia | 1922-03- | 1934-12- | 1922–2022 | 12 | |
| Mezinárodní festival Divadlo | Mezinárodní festival Divadlo | Czech Republic, Plzeň, Pražská 19 | 2007-09-20 | -- | 2007 | 1 | |
| McDonald's | McDonald's | United States, Montgomery | 1896-01-01 | 1896-01-01 | 1896 | 1 | |
| Mezőkövesd | Mezőkövesd | Hungary, Mezőkövesd | 1910-10-03 | -- | 1910–1925 | 3 | |
| Montparnasse, Théâtre | Théâtre Montparnasse | France, Paris, 31, rue de la Gaîté | 1943-10-01 | 2013-12-14 | 1943–2013 | 3 | |
| Moser Theatre, Wadham College | Moser Theatre, Wadham College | England, Oxford, Parks Rd | 2005-11-15 | 2005-11-19 | 2005 | 1 | |
| Montwhite | Montwhite | United States, Burlington | 1909-04-26 | 1909-04-26 | 1909 | 1 | |
| Møvig skole | Møvig skole | Norway, Kristiansand, Kristiansand | 2006-10-23 | -- | 2006 | 1 | |
| Madách Színház | Madách Színház | Hungary, Budapest, Erzsébet krt. 29-33 | 1943-04-30 | -- | 1943–1971 | 2 | |
| Mexico | Mexico | Mexico, Mexico | 1930-06- | -- | 1930–1974 | 3 | |
| Main Campus, Norman R. Roberts Lab Theatre, Kopecek Hall | Main Campus, Norman R. Roberts Lab Theatre, Kopecek Hall | United States, Bethlehem | 2013-11-21 | 2013-11-25 | 2013 | 1 | |
| Marker Ungdomskole | Marker Ungdomskole | Norway, Marker, Marker | 2005-11-23 | -- | 2005 | 1 | |
| Mandel Hall, University Of Chicago | Mandel Hall, University Of Chicago | United States, Chicago, 1131 East 57th Street | 1920-02-16 | 1981-02-22 | 1920–1981 | 2 | |
| Maghemo Secondary School | Maghemo Secondary School | Malawi, Karonga | 2006-06-13 | -- | 2006 | 1 | |
| Malraux - Scène nationale Chambéry Savoie | Malraux - Scène nationale Chambéry Savoie | France, Chambéry, 67 Place Président Mitterand | 2012-02-07 | 2014-04-25 | 2012–2014 | 2 | |
| Meieriet Kultursenter | Meieriet Kultursenter | Norway, Leknes, Storgata 27 | 2018-04-15 | -- | 2018 | 1 | |
| Moreni | Moreni | Romania, Moreni | -- | -- | | | |
| Maxim Gorki Theater | Maxim Gorki Theater | Germany, Berlin, Am Festungsgraben 2 | 1956-01-11 | 2021-10-09 | 1956–2021 | 18 | |
| Midtbygda Sentralskole | Midtbygda Sentralskole | Norway, Solfjellsjøen, Dønna, Solfjellsjøen, 8820 Dønna | 1971-03-13 | -- | 1971–1978 | 2 | |
| Moskovskij literaturnyj teatr | Moskovskij literaturnyj teatr | Russia, Moscow | 1958-06- | -- | 1958 | 1 | |
| Münchner Schauspielhaus | Münchner Schauspielhaus | Germany, Munich, Neuturmstraße 1 | 1897-11-17 | 1993-04-29 | 1897–1991 | 5 | |
| Marsden Theatre | Marsden Theatre | Australia, Parramatta, Marsden Street | 1978-07-05 | 1978-07-09 | 1978 | 1 | |
| Móricz Zsigmond Színház | Móricz Zsigmond Színház | Hungary, Nyíregyháza, Bessenyei tér 13. | 1995-12-15 | -- | 1995 | 1 | |
| Moqattam Culture House | El Moqattam Culture House | Egypt, Cairo | 2013-03-01 | 2013-03-02 | 2013 | 1 | |
| Maximteatern | Maximteatern | Sweden, Borlänge, Tunagatan 42, | 2010-10-26 | -- | 2010 | 1 | |
| Marine Theatre | Marine Theatre | England, Dorset, Church St, Lyme Regis | 2006-05-31 | -- | 2006–2007 | 2 | |
| Meiqi-teatret | Meiqi-teatret | China, Shanghai, 66 Jiangning Lu | 1995-11- | 2017-09-10 | 1995–2017 | 2 | |
| Målarsalen | Målarsalen | Sweden, Stockholm, Linnégatan 69 | 2013-02-22 | 2013-04-25 | 2013 | 1 | |
| Městské oblastní divadlo | Městské oblastní divadlo | Czech Republic, Kolín | -- | -- | | | |
| Montrose Town Centre | Montrose Town Centre | Australia, Montrose | 2001-08-18 | 2004-08-07 | 2001–2004 | 2 | |
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