| Muhlenberg College Theatre | Muhlenberg College Theatre | United States of America | -- | -- | | | |
| Maidment Theatre | Maidment Theatre | New Zealand, Auckland | 2015-04-30 | 2015-05-23 | 2015 | 1 | |
| 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 | |
| Mescal Hornbeck Community Center | Mescal Hornbeck Community Center | United States of America, Woodstock, 56 Rock City Rd | 2025-03-14 | 2025-03-30 | 2025 | 1 | |
| Mozart Salon | Mozart Salon | Japan, Tokyo | 1983-10-25 | 1983-10-29 | 1983 | 1 | |
| Melbu | Melbu | Norway, Melbu | 1990-09-24 | -- | 1990–1995 | 2 | |
| Margaret Theatre | Margaret Theatre | United States of America, Anaconda | 1905-12-07 | 1905-12-07 | 1905 | 1 | |
| Murnau | Murnau | United States of America, Murnau | -- | -- | | | |
| Markt, Theater am | Theater am Markt | Germany, Eisenach, Goldschmiedenstraße 12 | 2018-11-24 | 2019-03-02 | 2018 | 1 | |
| Minot University Black Box | Minot University Black Box | United States of America, Minot, 500 University Ave W | 2006-10-11 | 2006-10-12 | 2006 | 1 | |
| Münchener Künstler-Theater | Münchener Künstler-Theater | Germany, Munich | 1914-07-30 | -- | 1914 | 1 | |
| Marion | Marion | United States of America, Marion | 1903-12-07 | 1903-12-07 | 1903 | 1 | |
| Mariestad | Mariestad | Sweden, Mariestad | 1936-10-08 | 1989-11-20 | 1936–1993 | 5 | |
| Myar Opera House | Myar Opera House | United States of America, El Paso | 1903-12-10 | 1903-12-10 | 1903 | 1 | |
| Microtheater | Microtheater | Netherlands, GX Delft, Kerkstraat 19 | 1994-11-15 | 1994-12-17 | 1994 | 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 | |
| Mellomhagen ungdomsskole | Mellomhagen ungdomsskole | Norway, Larvik, Mellomhagen 31 | 2007-02-07 | -- | 2007 | 1 | |
| Mandal | Mandal | Norway, Mandal | 1982-11-11 | -- | 1982–1995 | 3 | |
| Maltings | Maltings | England, Berwick-upon-Tweed, Eastern Ln | 2011-06-16 | -- | 2011 | 1 | |
| Masque Theater | Masque Theater | United States of America, New York | 1966-04-18 | -- | 1966 | 1 | |
| Malmö Stadsteater | Malmö Stadsteater | Sweden, Malmö, Kalendegatan 12 | 1951-11-29 | 2023-01-28 | 1951–2022 | 9 | |
| Matienzo Cultural Club | Matienzo Cultural Club | Argentina, Buenos Aires, Pringles 1249 | 2018-07-31 | 2018-07-31 | 2018 | 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 | |
| McSorley’s Square | McSorley’s Square | Vietnam, Ho Chi Minh City, 4 Thao Dien, District 2 | 2014-06-12 | 2014-06-15 | 2014 | 1 | |
| Menotti, Teatro | Teatro Menotti | Italy, Milano, Via Ciro Menotti, 11 | 2018-03-01 | 2018-03-11 | 2018 | 1 | |
| Miranda de Ebro | Miranda de Ebro | Spain, Miranda de Ebro | 2011-02-04 | -- | 2011 | 1 | |
| Multnomah Hotel | Multnomah Hotel | United States of America, Portland | 1912-11-22 | 1912-11-22 | 1912 | 1 | |
| Muktadhara Auditorium | Muktadhara Auditorium | India, New Delhi, 18 - 19, Bhai Veer Singh Marg, Gole Market, Connaught Place | 2007-04-15 | -- | 2007 | 1 | |
| Moskovskii gastrolnyj teatr | Moskovskii gastrolnyj teatr | Russia, Moscow | 1957-- | -- | 1957 | 1 | |
| Miljøbygget | Miljøbygget | Norway, Tana, Tana | 1983-11-15 | -- | 1983–2007 | 2 | |
| 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 | |
| Malvern Theatres - Festival Theatre | Malvern Theatres - Festival Theatre | England, Malvern, Worcestershire, Grange Road | 1950-07-24 | 2013-11-30 | 1950–2013 | 8 | |
| 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 | |
| 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 | |
| Městské divadlo Jablonec nad Nisou | Městské divadlo Jablonec nad Nisou | Czech Republic, Jablonec nad Nisou, Liberecká 5/1900 | 2006-12-04 | -- | 2006 | 1 | |
| Meråker, Samfunnshuset | Samfunnshuset Meråker (Meraaker) | Norway, Meråker | 1956-11-08 | -- | 1956–1961 | 4 | |
| Musikhuset Esbjerg | Musikhuset Esbjerg | Denmark, Esbjerg, Havnegade 18 | 2004-11-01 | -- | 2004–2018 | 4 | |
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