| Magyar Területi Színház (MATESZ) | Magyar Területi Színház (MATESZ) | Slovak Republic, Komárno | 1970-01-29 | -- | 1970 | 1 | |
| Manzoni, Teatro | Teatro Manzoni | Italy, Pistoia | 1974-10-26 | 2016-03-09 | 1974–2020 | 6 | |
| Mikkeli | Mikkeli | Finland, Mikkeli | 1950-- | 1951-- | 1950–2011 | 2 | |
| Mandal, Kinoen | Kinoen Mandal | Norway, Mandal, Store Elvegate 35 | 1973-11-10 | 1997-11-20 | 1973–2006 | 10 | |
| Multipalco Eva Sopher | Teatro Oficina Olga Reverbel do Multipalco Eva Sopher | Brazil | 2023-06-04 | 2023-06-06 | 2023 | 1 | |
| Main, The | The Main | United States of America, Santa Clarita, 24266 Main Street | 2018-06-22 | 2018-06-24 | 2018 | 1 | |
| Maverick Theatre | Maverick Theatre | United States of America, Woodstock, 120 Maverick Rd | 1934-08-09 | 1937-07-25 | 1934–1937 | 2 | |
| Mount Carmel High School | Mount Carmel High School | United States of America, Mount Carmel | 1914-11-27 | 1914-11-27 | 1914 | 1 | |
| Městské divadlo Plzeň | Městské divadlo Plzeň | Czech Republic, Plzeň | 1941-11-22 | -- | 1941 | 1 | |
| Musical Theatre Works (MTW) | Musical Theatre Works (MTW) | United States of America, New York | 2000-11-03 | 2000-11-12 | 2000 | 1 | |
| Merlyn Theatre | Merlyn Theatre (Malthouse Theatre) | Australia, Southbank, 113 Sturt St | 2012-02-17 | 2012-03-17 | 2012 | 1 | |
| MFA Studio 208, University of Houston School of Theatre & Dance | MFA Studio 208, University of Houston School of Theatre & Dance | United States of America, Houston, Cynthia Woods Mitchell Center for the Arts | 2009-09-18 | 2009-09-20 | 2009 | 1 | |
| Manbites Dog Theater | Manbites Dog Theater | United States of America, Durham, 703 Foster St | 2006-02-02 | 2006-02-19 | 2006 | 1 | |
| Mechanics Institute Performing Arts Centre | Mechanics Institute Performing Arts Centre | Australia, Brunswick, 270 Sydney Rd | 2004-07-22 | 2004-08-08 | 2004 | 1 | |
| Morfes Ekfrasis | Morfes Ekfrasis (Forms of Expression) | Greece, Athens, Kato Petralona | 2013-02-08 | -- | 2013 | 1 | |
| Mohács | Mohács | Hungary, Mohács | 1908-06-17 | 1908-06-24 | 1908–1942 | 5 | |
| Mesterfjellet ungdomsskole | Mesterfjellet ungdomsskole | Norway, Larvik, Kristian Fredriks vei 3 | 2007-02-08 | -- | 2007 | 1 | |
| Madách Kamara Színház | Madách Kamara Színház | Hungary, Budapest, Erzsébet körút 31 | 1920-04-15 | 1920-04-30 | 1920–1974 | 4 | |
| Melhus rådhus | Melhus rådhus | Norway, Melhus, Rådhusvegen 2 | 1983-10-12 | 2015-10-10 | 1983–2022 | 13 | |
| Midtown Art Center | Midtown Art Center | United States of America, Houston, 3414 La Branch St | 2002-02-01 | 2002-02-23 | 2002 | 1 | |
| Marseille | Marseille | France, Marseille | 1897-03-16 | -- | 1897 | 1 | |
| Middelfart Teater | Middelfart Teater | Denmark, Middelfart | 1883-10-19 | -- | 1883–1909 | 6 | |
| Madlenianum Opera & Theatre | Madlenianum Opera & Theatre | Serbia, Belgrade, Glavna 32 | 2011-12-10 | -- | 2011 | 1 | |
| 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 | |
| Mystery Brewery | Mystery Brewery | United States of America, Hillsborough, 437 Dimmock's Mill Rd | 2018-01-18 | 2018-02-03 | 2018 | 1 | |
| Metropol-Theater | Metropol-Theater | Germany, Berlin, Friedrichstraße 100-102 | 1903-09-23 | 1905-06-11 | 1903–1910 | 4 | |
| Maxim Gorki Theater | Maxim Gorki Theater | Germany, Berlin, Am Festungsgraben 2 | 1956-01-11 | 2021-10-09 | 1956–2021 | 18 | |
| Moss Hotel | Moss Hotel | Norway, Moss, Dronningens gate 21 | 1927-09-06 | -- | 1927–1928 | 3 | |
| 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 | |
| Maryland Theatre | Maryland Theatre | United States of America, Baltimore | 1903-10-21 | 1903-10-21 | 1903 | 1 | |
| Mönchengladbach | Mönchengladbach | Germany, Mönchengladbach | 1893-10-09 | -- | 1893–2001 | 2 | |
| Meghdoot III Exhibition Hall | Meghdoot III Exhibition Hall | India, New Delhi, Rabindra Bhavan, Copernicus Marg | 2009-12-04 | 2009-12-05 | 2009 | 1 | |
| Morelia | Morelia | Mexico, Morelia | 2006-06-02 | -- | 2006 | 1 | |
| Michael Schimmel Center for the Arts | Michael Schimmel Center for the Arts | United States of America, New York, Spruce Street | -- | -- | | | |
| Mezőkövesd | Mezőkövesd | Hungary, Mezőkövesd | 1910-10-03 | -- | 1910–1925 | 3 | |
| Mosjøen Kulturhus | Mosjøen Kulturhus | Norway, Mosjøen, Smågan 2 | 2009-04-28 | -- | 2009–2018 | 3 | |
| Mo i Rana | Mo i Rana | Norway, Mo i Rana | 1954-05-04 | -- | 1954–2005 | 9 | |
| Maghemo Secondary School | Maghemo Secondary School | Malawi, Karonga | 2006-06-13 | -- | 2006 | 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 | |
| Madách Színház | Madách Színház | Hungary, Budapest, Erzsébet krt. 29-33 | 1943-04-30 | -- | 1943–1971 | 2 | |
| Móricz Zsigmond Színház | Móricz Zsigmond Színház | Hungary, Nyíregyháza, Bessenyei tér 13. | 1995-12-15 | -- | 1995 | 1 | |
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