| Main, The | The Main | United States of America, Santa Clarita, 24266 Main Street | 2018-06-22 | 2018-06-24 | 2018 | 1 | |
| Macauleys Theater | Macauleys Theater | United States of America, Louisville, 315 W Broadway | 1883-12-07 | 1906-12-29 | 1883–1906 | 3 | |
| Magdeburg | Magdeburg | Germany, Magdeburg | -- | -- | | | |
| Marienwerder | Marienwerder | Poland, Kwidzyn | 1878-- | -- | 1878 | 1 | |
| Marine Theatre | Marine Theatre | England, Dorset, Church St, Lyme Regis | 2006-05-31 | -- | 2006–2007 | 2 | |
| Mallette Studio Theatre | Mallette Studio Theatre | United States of America, Evansville, 8600 University Blvd | 2010-03-18 | 2010-04-02 | 2010 | 1 | |
| Musikkteatret, Vestbanen | Musikkteatret, Vestbanen | Norway, Oslo, Enga 3 | 1993-04-14 | 1994-03-13 | 1993–1994 | 2 | |
| Mátészalka | Mátészalka | Hungary, Mátészalka | 1925-07-16 | -- | 1925–1941 | 2 | |
| Masque Theatre | Masque Theatre | South Africa, Muizenberg, 37 Main Rd, | 2013-03-15 | 2013-03-23 | 2013 | 1 | |
| Mountview Academy of Theatre Arts | Mountview Academy of Theatre Arts | England, London, Clarendon Rd | 2004-06-17 | 2004-06-25 | 2004 | 1 | |
| Městské oblastní divadlo | Městské oblastní divadlo | Czech Republic, Kolín | -- | -- | | | |
| Myar Opera House | Myar Opera House | United States of America, El Paso | 1903-12-10 | 1903-12-10 | 1903 | 1 | |
| Manhattan Opera House | Manhattan Opera House | United States of America, New York, 311 West 34th St | 1920-09-06 | -- | 1920 | 1 | |
| Margaretaparken | Margaretaparken | Sweden, Stockholm, Gamla Enskede | 2003-08-30 | 2003-09-19 | 2003 | 1 | |
| Masonic Opera House | Masonic Opera House | United States of America, Chillicothe | 1903-12-05 | 1908-04-06 | 1903–1908 | 2 | |
| Molesworth Hall | Molesworth Hall | Ireland, Dublin, Molesworth St | 1897-12-14 | 1906-12-08 | 1897–1906 | 2 | |
| Manchester Opera House | Manchester Opera House | England, Manchester, 3 Quay Street | 1964-10-19 | -- | 1964 | 1 | |
| Malmö Teater | Malmö Teater | Sweden, Malmö | 1872-02-01 | 1928-04-16 | 1872–1936 | 23 | |
| Mykolaiv | Mykolaiv | Ukraine, Mykolaiv | 1903-03-04 | 1904-02-22 | 1903–1904 | 3 | |
| Mehregan Theater | Mehregan Theater | Iran, Tehran, District 11, Enghelab St, Khark St. | 2019-07-06 | 2021-09-10 | 2019–2021 | 2 | |
| Museum of Contemporary Art | Museum of Contemporary Art | United States of America, North Adams, 87 Marshall Street | 2006-04-07 | -- | 2006 | 1 | |
| Mantziusgården | Mantziusgården | Denmark, Birkerød, Johan Mantzius Vej 7 | 2004-12-07 | -- | 2004 | 1 | |
| Mĕstské oblastní divadlo Varnsdorf | Mĕstské oblastní divadlo Varnsdorf | Czech Republic, Varnsdorf, Partyzánů 1442 | 1959-04-25 | -- | 1959 | 1 | |
| McSorley’s Square | McSorley’s Square | Vietnam, Ho Chi Minh City, 4 Thao Dien, District 2 | 2014-06-12 | 2014-06-15 | 2014 | 1 | |
| Møllesalen | Møllesalen | Norway, Strusshamn | 2005-09-03 | -- | 2005 | 1 | |
| Mukačeve | Mukačeve | Ukraine, Mukačeve | 1909-01- | 1927-03-08 | 1909–1941 | 8 | |
| Miorcani (Rădăuţi-Prut) | Miorcani (Rădăuţi-Prut) | Romania, Miorcani (Rădăuţi-Prut) | -- | -- | | | |
| Mission Theatre, The | The Mission Theatre | England, Bath, 32 Corn St | 2008-03-11 | 2008-03-15 | 2008 | 1 | |
| Moelv | Moelv | Norway, Moelv | 1966-04-23 | -- | 1966–1991 | 3 | |
| Mount Carmel High School | Mount Carmel High School | United States of America, Mount Carmel | 1914-11-27 | 1914-11-27 | 1914 | 1 | |
| MC2 - Maison de la Culture de Grenoble | MC2 - Maison de la Culture de Grenoble | France, Grenoble, 4 Rue Paul Claudel | 2014-02-05 | 2019-03-15 | 2014–2019 | 3 | |
| Møre og Romsdal tekniske skole | Møre og Romsdal tekniske skole | Norway, Ålesund, Fogd Greves vei 9 | 1970-02-09 | -- | 1970 | 1 | |
| Momentum, Teater | Teater Momentum | Denmark, Odense, Filosofgangen 19 | 2013-02-14 | 2016-04-12 | 2013–2016 | 2 | |
| Mystery Brewery | Mystery Brewery | United States of America, Hillsborough, 437 Dimmock's Mill Rd | 2018-01-18 | 2018-02-03 | 2018 | 1 | |
| Mecklenburgisches Landestheater Schwerin | Mecklenburgisches Landestheater Schwerin | Germany, Schwerin, Blutstr. 16 19370 Parchim | 1919-11-02 | 1925-10-09 | 1919–1925 | 3 | |
| Mermaid Theatre | Mermaid Theatre | England, Puddle Dock, London | 1961-02-16 | -- | 1961 | 1 | |
| Mangochi Secondary School | Mangochi Secondary School | Malawi, Mangochi | 2006-05-06 | -- | 2006 | 1 | |
| Marshall Performing Arts Center - Dudley Experimental Theatre | Marshall Performing Arts Center - Dudley Experimental Theatre | United States of America | 2020-01-17 | 2020-01-17 | 2020 | 1 | |
| Mezinárodní divadelni festival | Mezinárodní divadelni festival | Czech Republic, Český Těsín | 2005-05-13 | -- | 2005 | 1 | |
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