| Mariehamn | Mariehamn | Finland, Åland Islands | 1999-10-09 | 1999-10-24 | 1999 | 1 | |
| Miller Centre, The | The Miller Centre | England, Caterham, Surrey, 30 Godstone Road | 2007-07-05 | 2007-08-03 | 2007 | 1 | |
| Merlin Theatre | Merlin Theatre | England, Frome, Bath Rd | 1993-10-21 | 2014-11-07 | 1993–2014 | 2 | |
| Machinefabriek, Theater de | Theater de Machinefabriek | Netherlands, Groningen, Bloemstraat 38 | 2013-04-07 | 2016-05-14 | 2013–2016 | 3 | |
| Millennium Forum | Millennium Forum | Northern Ireland, Londonderry, 3 Newmarket Street | 2011-05-24 | 2011-05-25 | 2011 | 1 | |
| Murray Hill Theatre | Murray Hill Theatre | United States of America, New York, 160 E. 34th Street | 1905-04-30 | -- | 1905 | 2 | |
| Meininger Theater, Das | Das Meininger Theater | Germany, Meiningen, Bernhardstraße 5 | 1986-12-12 | 2024-06-13 | 1986–2024 | 8 | |
| Motel Theatre | Motel Theatre | Canada, Calgary, 205 8 Ave SE | 2019-04-04 | 2019-04-13 | 2019 | 1 | |
| Meieriscenen | Meieriscenen | Norway, Tromsø, Strandveien | 2004-07-13 | 2004-07-18 | 2004 | 1 | |
| Malraux - Scène nationale Chambéry Savoie | Malraux - Scène nationale Chambéry Savoie | France, Chambéry, 67 Place Président Mitterand | 2012-02-07 | 2014-04-25 | 2012–2014 | 2 | |
| Marrucino | Teatro | Italy, Chieti | -- | -- | | | |
| Masrah Al-Falaki | Masrah Al-Falaki (Al-Falaki Theater) | Egypt, Cairo Governorate, Al Falki, Abdeen, | 2024-10-10 | -- | 2024 | 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 | |
| Molun zhongxue (Molun School) | Molun zhongxue (Molun School) | China, Shanghai | -- | -- | | | |
| Mattoon Theatre | Mattoon Theatre | United States of America, Mattoon | 1907-11-12 | 1907-11-12 | 1907 | 1 | |
| Moray House Theatre | Moray House Theatre | Scotland, Edinburgh | 1969-11-25 | -- | 1969 | 1 | |
| Metro Arts | Metro Arts | Australia, Brisbane, Edward St | 1994-03-01 | 1994-03-05 | 1994 | 1 | |
| Mini-Theatre Kyo | Mini-Theatre Kyo | Japan, Tokyo | 1999-11-12 | 1999-11-21 | 1999 | 1 | |
| Moskovskij teatr Masterskaja P. Fomenko | Moskovskij teatr Masterskaja P. Fomenko | Russia, Moscow, Набережная Тараса Шевченко, 29 | 2004-12-19 | 2006-09-08 | 2004 | 1 | |
| Messepalast Vienna | Messepalast Vienna | Austria, Wien | 1993-06-09 | 1993-06-12 | 1993 | 1 | |
| Madlab's Theatre | Madlab's Theatre | United States of America, Columbus, 227 N 3rd St | 2008-10-09 | 2008-10-25 | 2008 | 1 | |
| Mahenovo divadlo | Mahenovo divadlo | Czech Republic, Brno, Malinovského náměstí 1 | 1966-03-04 | 2018-06-05 | 1966–2017 | 3 | |
| Manzanares | Manzanares | Spain, Manzanares | 2010-03-20 | -- | 2010 | 2 | |
| Midgårdsskolan | Midgårdsskolan | Sweden, Umeå, Regementsområdet | 2006-11-15 | 2006-11-16 | 2006 | 1 | |
| Madison | Madison | United States of America, Madison | 1903-12-25 | 1903-12-25 | 1903 | 1 | |
| Muritai School Theatre | Muritai School Theatre | New Zealand, Wellington, Muritai Rd, | 2012-07-19 | 2012-07-28 | 2012 | 1 | |
| Macauleys Theater | Macauleys Theater | United States of America, Louisville, 315 W Broadway | 1883-12-07 | 1906-12-29 | 1883–1906 | 3 | |
| Magyar Állami Operaház | Magyar Állami Operaház (Hungarian State Opera House) | Hungary, Budapest, Andrássy út 22 | 2017-04-10 | -- | 2017 | 1 | |
| Midsund skule | Midsund skule | Norway, Midsund, Midsund kommune | 2007-04-16 | -- | 2007 | 1 | |
| Mystic Seaport Museum | Mystic Seaport Museum | United States of America, Mystic, 75 Greenmanville Avenue | 2022-07-16 | -- | 2022 | 1 | |
| Moustier-Ventadour - Château de Ventadour | Moustier-Ventadour - Château de Ventadour | France | 2023-08-01 | 2023-07-21 | 2023 | 1 | |
| Mărăşeşti | Mărăşeşti | Romania, Mărăşeşti | -- | -- | | | |
| Mĕstské divadlo Brno | Mĕstské divadlo Brno | Czech Republic, Brno, Lidická 16 | 1969-01-18 | 2000-05-14 | 1969–2000 | 3 | |
| 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 | |
| Městské oblastní divadlo Karlovy Vary | Městské oblastní divadlo Karlovy Vary | Czech Republic, Karlovy Vary | 1947-02-06 | -- | 1947 | 1 | |
| Milwaukee Repertory Theater | Milwaukee Repertory Theater | United States of America, Milwaukee | 1967-08-01 | 1967-08-01 | 1967 | 1 | |
| Moore Theater, The | The Moore Theater | United States of America, Hanover, 2 E Wheelock St | 2010-02-19 | 2010-02-28 | 2010 | 1 | |
| Mad Cow Theatre | Mad Cow Theatre | United States of America, Orlando, Church Street Market, 54 W Church St | 2002-06-06 | 2012-03-25 | 2002–2012 | 2 | |
| Mumford Theatre, The | The Mumford Theatre | England, Cambridge, Cambridgeshire, Anglia Ruskin University East Road | 2010-11-08 | -- | 2010–2018 | 3 | |
| Moskovskij Dramatičeskij Teatr pod rukovodstvom Armena Džigarchanjana | Moskovskij Dramatičeskij Teatr pod rukovodstvom Armena Džigarchanjana | Russia, Moskva, Lomonosovskij prospekt 17 | 2008-03-14 | 2009-05-17 | 2008 | 1 | |
| Malmö Teater | Malmö Teater | Sweden, Malmö | 1872-02-01 | 1928-04-16 | 1872–1936 | 23 | |
| Montgomery Theatre | Montgomery Theatre | United States of America, Montgomery | 1903-10-24 | 1904-11-12 | 1903–1904 | 3 | |
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