| Misvær | Misvær | Norway, Misvær | 1966-05-12 | -- | 1966–1971 | 2 | |
| Main Theatre, University of California | Main Theatre, University of California | United States, Davis, 1 Shields Ave | 1992-03-05 | 2000-12-10 | 1992–2000 | 3 | |
| Mansfield Theatre | Mansfield Theatre | United States, New York, 256 W 47th St | 1927-01-10 | -- | 1927 | 1 | |
| Modena | Modena | Italy, Modena | 1900-11-08 | -- | 1900 | 1 | |
| Maison dans la Vallée | Maison dans la Vallée | France, Avon, 27-29 Rue du Vieux Ru | 2019-03-21 | -- | 2019 | 1 | |
| McKinleyville High School | McKinleyville High School | United States, McKinleyville, 1300 Murray Rd | 2005-12-05 | -- | 2005 | 1 | |
| M.M.T. | M.M.T. | Belgium, Mechelen | 2002-05-26 | -- | 2002 | 1 | |
| Matsumoto | Matsumoto | Japan, Matsumoto | 2006-06-13 | 2006-06-15 | 2006 | 1 | |
| Mĕstské divadlo Kladno | Mĕstské divadlo Kladno | Czech Republic, Kladno, Divadelní 1702 | 1957-09-27 | -- | 1957 | 1 | |
| Moray House Theatre | Moray House Theatre | Scotland, Edinburgh | 1969-11-25 | -- | 1969 | 1 | |
| Main, The | The Main | United States, Santa Clarita, 24266 Main Street | 2018-06-22 | 2018-06-24 | 2018 | 1 | |
| Maverick Theatre | Maverick Theatre | United States, Woodstock, 120 Maverick Rd | 1934-08-09 | 1937-07-25 | 1934–1937 | 2 | |
| Moser Theatre, Wadham College | Moser Theatre, Wadham College | England, Oxford, Parks Rd | 2005-11-15 | 2005-11-19 | 2005 | 1 | |
| Massachusetts Institute of Technology (MIT) | Massachusetts Institute of Technology (MIT) | United States, Cambridge, 77 Massachusetts Ave | 1964-01-24 | -- | 1964 | 1 | |
| Mariinsky theatre | Mariinsky theatre | Russia, St. Petersburg, Teatralnaya ploshchad', 1 | 2005-06-22 | 2005-06-22 | 2005 | 1 | |
| Maison de la Culture de Bourges | Maison de la Culture de Bourges | France, Bourges, Place André Malraux | 1997-05-21 | 2014-12-04 | 1997–2014 | 3 | |
| Mátray Béla Társulata | Mátray Béla Társulata | Romania, Arad | -- | -- | | | |
| Mazzini | Teatro Mazzini | Italy, Forlì | 1974-12-14 | -- | 1974 | 1 | |
| Marikollen ungd.skole | Marikollen ungd.skole | Norway, Fjerdingby, Rælingen | 2001-11-06 | -- | 2001 | 1 | |
| Matienzo Cultural Club | Matienzo Cultural Club | Argentina, Buenos Aires, Pringles 1249 | 2018-07-31 | 2018-07-31 | 2018 | 1 | |
| Městské divadlo | Městské divadlo | Czech Republic, Pardubice | 2008-01-19 | 2009-04-20 | 2008 | 1 | |
| Millbank Theatre, The | The Millbank Theatre | Ireland, Rush, Co Dublin, Chapel Green | 2007-02-27 | -- | 2007 | 1 | |
| Metro Arts | Metro Arts | Australia, Brisbane, Edward St | 1994-03-01 | 1994-03-05 | 1994 | 1 | |
| Musée Maurice Denis | Musée Maurice Denis | France, Saint-Germain-en-Laye, 2 rue Maurice Denis | 2008-05-17 | 2008-05-17 | 2008 | 1 | |
| Matsumoto Performing Arts Centre | Matsumoto Performing Arts Centre | Japan, Matsumoto, Nagano, 3-10-1 Fukashi | 2005-06-30 | 2005-07-01 | 2005 | 1 | |
| Muhsin Ertugrul Sahnesi | Muhsin Ertugrul Sahnesi | Turkey, Istanbul, Harbiye Mh., Darülbedayi Cd. No:3 | 1998-05-30 | 2018-04-28 | 1998–2019 | 3 | |
| Madlenianum Opera & Theatre | Madlenianum Opera & Theatre | Serbia, Belgrade, Glavna 32 | 2011-12-10 | -- | 2011 | 1 | |
| Mahenovo divadlo | Mahenovo divadlo | Czech Republic, Brno, Malinovského náměstí 1 | 1966-03-04 | 2018-06-05 | 1966–2017 | 3 | |
| Masonic Temple | Masonic Temple | United States, Portland | 1910-02-28 | 1910-02-28 | 1910 | 1 | |
| Mehregan Theater | Mehregan Theater | Iran, Tehran, District 11, Enghelab St, Khark St. | 2019-07-06 | 2021-09-10 | 2019–2021 | 2 | |
| Musical Theatre Works (MTW) | Musical Theatre Works (MTW) | United States, New York | 2000-11-03 | 2000-11-12 | 2000 | 1 | |
| Main Campus, Norman R. Roberts Lab Theatre, Kopecek Hall | Main Campus, Norman R. Roberts Lab Theatre, Kopecek Hall | United States, Bethlehem | 2013-11-21 | 2013-11-25 | 2013 | 1 | |
| Maltings | Maltings | England, Berwick-upon-Tweed, Eastern Ln | 2011-06-16 | -- | 2011 | 1 | |
| Molde videregående skole | Molde videregående skole | Norway, Molde, Øvre veg 23 | 1970-02-10 | 2013-03-04 | 1970–2013 | 3 | |
| Market Theatre | Market Theatre | South Africa, Johannesburg, 56 Margaret Mcingana St,Johannesburg 2048,Gauteng, Sør-Afrika | 1990-05-08 | 1990-06-09 | 1990–1994 | 2 | |
| Montrose Town Centre | Montrose Town Centre | Australia, Montrose | 2001-08-18 | 2004-08-07 | 2001–2004 | 2 | |
| Merchant’s House Museum | Merchant’s House Museum | United States, New York, 29 E 4th St | 2011-07-07 | 2011-07-17 | 2011 | 1 | |
| Městské divadlo České Budějovice | Městské divadlo České Budějovice | Czech Republic, České Budějovice | 1913-10-06 | -- | 1913 | 1 | |
| Malyj Teatr | Malyj Teatr | Russia, Moscow, ul. Bol'shaya Serpuhovskaya, 44 | 1892-01-14 | -- | 1892–1972 | 9 | |
| Mains d'Œuvres | Mains d'Œuvres | France, Saint-Ouen, 1 Rue Charles Garnier | 2016-10-04 | 2016-10-09 | 2016 | 1 | |
| Městské divadlo Kolín | Městské divadlo Kolín | Czech Republic, Kolín | 1965-11-27 | -- | 1965 | 1 | |
| Morsø Teater | Morsø Teater | Denmark, Nykjøbing Mors, Limfjordsvej 95 | 2002-03-07 | 2016-04-29 | 2002–2016 | 6 | |
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