| Marloo Theatre | Marloo Theatre | Australia, Greenmount, 20 Marloo Road | 2008-07-16 | 2008-08-02 | 2008 | 1 | |
| Mini-Theatre Kyo | Mini-Theatre Kyo | Japan, Tokyo | 1999-11-12 | 1999-11-21 | 1999 | 1 | |
| Mehregan Theater | Mehregan Theater | Iran, Tehran, District 11, Enghelab St, Khark St. | 2019-07-06 | 2021-09-10 | 2019–2021 | 2 | |
| Margaretaparken | Margaretaparken | Sweden, Stockholm, Gamla Enskede | 2003-08-30 | 2003-09-19 | 2003 | 1 | |
| Meerbusch | Meerbusch | Germany, Meerbusch | -- | -- | | | |
| Ma An Shan Da Juyuan | Ma An Shan Da Juyuan (Ma An Shan Grand Theatre) | China, An'hui, No. 2006 Taibai Road, Ma'anshan, An'hui Province | 2015-01-16 | 2015-01-16 | 2015 | 1 | |
| Modum Kulturhuset | Modum Kulturhuset | Norway, Vikersund, Rådhusveien 1 | 1993-02-14 | 2015-11-08 | 1993–2022 | 12 | |
| Montréal | Montréal | Canada, Montréal | 1918-05-10 | -- | 1918 | 1 | |
| Maximum Uniq Hall | Maximum Uniq Hall | Turkey, Maslak Ayazağa Caddesi, Sarıyer/İstanbul, Türkiye | 2023-11-05 | 2023-11-05 | 2023 | 1 | |
| Mosjøen | Mosjøen | Norway, Mosjøen | 1966-05-08 | -- | 1966–2005 | 6 | |
| Mainfranken Theatre | Mainfranken Theatre | Germany, Wurzburg, Fürth, Theaterstraße 21 | 2006-10-01 | 2007-04-13 | 2006 | 2 | |
| Maaspoort | Maaspoort | Netherlands, Venlo, Oude Markt 30 | 2009-10-28 | -- | 2009–2013 | 2 | |
| Milan | Milan | Italy, Milan | 1899-12-12 | -- | 1899 | 1 | |
| Mansfield | Mansfield | United States of America, Mansfield | 1903-10-23 | 1903-10-23 | 1903 | 1 | |
| Matsumoto | Matsumoto | Japan, Matsumoto | -- | -- | | | |
| Mátészalka | Mátészalka | Hungary, Mátészalka | 1925-07-16 | -- | 1925–1941 | 2 | |
| Münchner Kammerspiele | Münchner Kammerspiele | Germany, Munich, Maximilianstraße 28 | 1900-11-08 | 2023-03-02 | 1900–2022 | 31 | |
| Mendel Art Gallery | Mendel Art Gallery | Canada, Saskatoon, 950 Spadina Crescent E | 1975-03-02 | -- | 1975 | 1 | |
| Mărăşeşti | Mărăşeşti | Romania, Mărăşeşti | -- | -- | | | |
| Massachusetts Institute of Technology (MIT) | Massachusetts Institute of Technology (MIT) | United States of America, Cambridge, 77 Massachusetts Ave | 1964-01-24 | -- | 1964 | 1 | |
| Music Hall Chicago | Music Hall Chicago | United States of America, Chicago, 1020 W Sheridan Rd | 1905-03-29 | 1907-06-08 | 1905–1907 | 3 | |
| Mascheranova, Teatro | Teatro Mascheranova | Italy, Pontecagnano Faiano, Via Isonzo, 6-10 | 2018-02-17 | 2018-03-11 | 2018 | 1 | |
| Musée Maurice Denis | Musée Maurice Denis | France, Saint-Germain-en-Laye, 2 rue Maurice Denis | 2008-05-17 | 2008-05-17 | 2008 | 1 | |
| Mukačeve | Mukačeve | Ukraine, Mukačeve | 1909-01- | 1927-03-08 | 1909–1941 | 8 | |
| MSH Rendezvényház Kht. | MSH Rendezvényház Kht. | Hungary, Szombathely, Március 15 tér | 2007-03-06 | -- | 2007 | 1 | |
| Magdeburg | Magdeburg | Germany, Magdeburg | -- | -- | | | |
| Miorcani (Rădăuţi-Prut) | Miorcani (Rădăuţi-Prut) | Romania, Miorcani (Rădăuţi-Prut) | -- | -- | | | |
| 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 | |
| Mosonmagyaróvár | Mosonmagyaróvár | Hungary, Mosonmagyaróvár | 1924-05-02 | -- | 1924–1936 | 4 | |
| Musikefterskolen i Humble | Musikefterskolen i Humble | Denmark, Humble, Hovedgaden 21 | 2013-10-21 | -- | 2013 | 1 | |
| Moland ungdomsskole | Moland ungdomsskole | Norway, Moland | 1997-09-03 | -- | 1997 | 1 | |
| Montfort, Le | Le Montfort | France, Paris, 106 Rue Brancion | 2018-09-18 | 2018-10-06 | 2018 | 1 | |
| Minnesota University Chapel | Minnesota University Chapel | United States of America, Minneapolis | 1926-02-16 | -- | 1926 | 1 | |
| Mickery Theatre | Mickery Theatre | Netherlands, Amsterdam | 1980-11-28 | -- | 1980 | 1 | |
| Møre og Romsdal | Møre og Romsdal | Norway, Møre og Romsdal | 1990-05- | 1997-04-30 | 1990–1997 | 2 | |
| Městské divadlo | Městské divadlo | Czech Republic, Pardubice | 2008-01-19 | 2009-04-20 | 2008 | 1 | |
| Mershon Auditorium, Wexner Center for the Arts | Mershon Auditorium, Wexner Center for the Arts | United States of America, Columbus, 1871 North High Street | 2005-11-16 | 2005-11-20 | 2005 | 1 | |
| Myar Opera House | Myar Opera House | United States of America, El Paso | 1903-12-10 | 1903-12-10 | 1903 | 1 | |
| Montgomery Theatre | Montgomery Theatre | Canada, North Rustico, 57 Church Hill Avenue | 2011-09-01 | 2011-09-11 | 2011 | 1 | |
| Městské divadlo Kolín | Městské divadlo Kolín | Czech Republic, Kolín | 1965-11-27 | -- | 1965 | 1 | |
| Mittelsächsisches Theater | Mittelsächsisches Theater | Germany, Freiberg, Borngasse 1 | 1995-04-01 | 2014-02-20 | 1995–2013 | 2 | |
| Maltings | Maltings | England, Berwick-upon-Tweed, Eastern Ln | 2011-06-16 | -- | 2011 | 1 | |
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