| Macdonough Theatre | Macdonough Theatre | United States of America, Oakland | 1904-01-08 | 1908-12-16 | 1904–1908 | 7 | |
| Mosonmagyaróvár | Mosonmagyaróvár | Hungary, Mosonmagyaróvár | 1924-05-02 | -- | 1924–1936 | 4 | |
| Muhlenberg College Theatre | Muhlenberg College Theatre | United States of America | -- | -- | | | |
| Margaret Theatre | Margaret Theatre | United States of America, Anaconda | 1905-12-07 | 1905-12-07 | 1905 | 1 | |
| Moscow | Moscow | Russia, Moscow | 1904-04-29 | 2014-10-06 | 1904–2014 | 15 | |
| Murnau | Murnau | United States of America, Murnau | -- | -- | | | |
| Modum Kulturhuset | Modum Kulturhuset | Norway, Vikersund, Rådhusveien 1 | 1993-02-14 | 2015-11-08 | 1993–2022 | 12 | |
| Mozart Salon | Mozart Salon | Japan, Tokyo | 1983-10-25 | 1983-10-29 | 1983 | 1 | |
| Massachusetts Institute of Technology (MIT) | Massachusetts Institute of Technology (MIT) | United States of America, Cambridge, 77 Massachusetts Ave | 1964-01-24 | -- | 1964 | 1 | |
| Melhus | Melhus | Norway, Melhus | 1991-10-14 | -- | 1991–2002 | 3 | |
| Micklefield Hall | Micklefield Hall | England, Rickmansworth, Hertfordshire, Sarratt Rd, Sarratt | 2014-03-22 | 2014-03-28 | 2014 | 1 | |
| Montréal | Montréal | Canada, Montréal | 1918-05-10 | -- | 1918 | 1 | |
| Markt, Theater am | Theater am Markt | Germany, Eisenach, Goldschmiedenstraße 12 | 2018-11-24 | 2019-03-02 | 2018 | 1 | |
| Masque Theater | Masque Theater | United States of America, New York | 1966-04-18 | -- | 1966 | 1 | |
| Minnesota University Chapel | Minnesota University Chapel | United States of America, Minneapolis | 1926-02-16 | -- | 1926 | 1 | |
| Museum of the Rockies | Museum of the Rockies | United States of America, Montana, 600 West Kagy Blvd Bozeman | 2019-10-10 | 2019-10-20 | 2019 | 1 | |
| Maghemo Secondary School | Maghemo Secondary School | Malawi, Karonga | 2006-06-13 | -- | 2006 | 1 | |
| Music Auditorium, University of Minnesota | Music Auditorium, University of Minnesota | United States of America, Minneapolis | 1933-06-21 | 1940-10-22 | 1933–1940 | 2 | |
| Manbites Dog Theater | Manbites Dog Theater | United States of America, Durham, 703 Foster St | 2006-02-02 | 2006-02-19 | 2006 | 1 | |
| Mallette Studio Theatre | Mallette Studio Theatre | United States of America, Evansville, 8600 University Blvd | 2010-03-18 | 2010-04-02 | 2010 | 1 | |
| Matienzo Cultural Club | Matienzo Cultural Club | Argentina, Buenos Aires, Pringles 1249 | 2018-07-31 | 2018-07-31 | 2018 | 1 | |
| Maxim Gorki Theater | Maxim Gorki Theater | Germany, Berlin, Am Festungsgraben 2 | 1956-01-11 | 2021-10-09 | 1956–2021 | 18 | |
| Myar Opera House | Myar Opera House | United States of America, El Paso | 1903-12-10 | 1903-12-10 | 1903 | 1 | |
| Mecklenburgisches Staatstheater Schwerin | Mecklenburgisches Staatstheater Schwerin | Germany, Schwerin, Alter Garten 2 | 1928-11-01 | 2009-01-10 | 1928–2015 | 13 | |
| Microtheater | Microtheater | Netherlands, GX Delft, Kerkstraat 19 | 1994-11-15 | 1994-12-17 | 1994 | 1 | |
| Moland ungdomsskole | Moland ungdomsskole | Norway, Moland | 1997-09-03 | -- | 1997 | 1 | |
| Marion | Marion | United States of America, Marion | 1903-12-07 | 1903-12-07 | 1903 | 1 | |
| Maltings | Maltings | England, Berwick-upon-Tweed, Eastern Ln | 2011-06-16 | -- | 2011 | 1 | |
| Multnomah Hotel | Multnomah Hotel | United States of America, Portland | 1912-11-22 | 1912-11-22 | 1912 | 1 | |
| Malmö | Malmö | Sweden, Malmö | 1997-10-15 | -- | 1997 | 1 | |
| Muktadhara Auditorium | Muktadhara Auditorium | India, New Delhi, 18 - 19, Bhai Veer Singh Marg, Gole Market, Connaught Place | 2007-04-15 | -- | 2007 | 1 | |
| Meieriscenen | Meieriscenen | Norway, Tromsø, Strandveien | 2004-07-13 | 2004-07-18 | 2004 | 1 | |
| Menotti, Teatro | Teatro Menotti | Italy, Milano, Via Ciro Menotti, 11 | 2018-03-01 | 2018-03-11 | 2018 | 1 | |
| Merchant’s House Museum | Merchant’s House Museum | United States of America, New York, 29 E 4th St | 2011-07-07 | 2011-07-17 | 2011 | 1 | |
| MasthuggsTeatern | MasthuggsTeatern | Sweden, Göteborg, Masthuggsterrassen 3 | 2002-10-11 | 2003-06-11 | 2002–2003 | 2 | |
| Marrucino | Teatro | Italy, Chieti | -- | -- | | | |
| Moskovskii gastrolnyj teatr | Moskovskii gastrolnyj teatr | Russia, Moscow | 1957-- | -- | 1957 | 1 | |
| Mittelsächsisches Theater | Mittelsächsisches Theater | Germany, Döbeln, Theaterstraße 7 | 1995-04-09 | -- | 1995 | 1 | |
| Mini-Theatre Kyo | Mini-Theatre Kyo | Japan, Tokyo | 1999-11-12 | 1999-11-21 | 1999 | 1 | |
| Morelia | Morelia | Mexico, Morelia | 2006-06-02 | -- | 2006 | 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 | |
| Moskóvskiy dramatícheskiy teátr imeni Marii Nikolayevny Yermólovoy | Moskóvskiy dramatícheskiy teátr imeni Marii Nikolayevny Yermólovoy (The Yermolova Theatre) | Russia, Moscow, Tverskaya ulitsa, 5/6 | 2022-09-16 | 2022-10-23 | 2022 | 1 | |
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