| Mahenovo divadlo | Mahenovo divadlo | Czech Republic, Brno, Malinovského náměstí 1 | 1966-03-04 | 2018-06-05 | 1966–2017 | 3 | |
| Mexico City | Mexico City | Mexico, Mexico City | -- | -- | | | |
| Minnesota University Chapel | Minnesota University Chapel | United States of America, Minneapolis | 1926-02-16 | -- | 1926 | 1 | |
| Musikteatret Albertslund | Musikteatret Albertslund | Denmark, Albertslund, Bibliotekstorvet 1-3 | 1994-06-19 | 1994-06-21 | 1994–2018 | 5 | |
| Maison des Jeunes et de la Culture, Théâtre de la | Théâtre de la Maison des Jeunes et de la Culture | France, Colombes, 96-98 Rue Saint-Denis | 1966-03-22 | -- | 1966 | 1 | |
| Meieriet Kultursenter | Meieriet Kultursenter | Norway, Leknes, Storgata 27 | 2018-04-15 | -- | 2018 | 1 | |
| Manhattan Theatre | Manhattan Theatre | United States of America, New York, 102 W. 33rd St | 1902-05-21 | 1902-05-30 | 1902–1905 | 6 | |
| MIT Kresge Little Theatre | MIT Kresge Little Theatre | United States of America, Cambridge, 48 Massachusetts Ave (in MIT Kresge Auditorium) | 1998-05-07 | 1998-05-09 | 1998 | 1 | |
| Městské divadlo Mladá Boleslav | Městské divadlo Mladá Boleslav | Czech Republic, Mladá Boleslav, Palackého 263 | 1955-01-23 | 2006-11-27 | 1955–2006 | 5 | |
| Midtbygda Sentralskole | Midtbygda Sentralskole | Norway, Solfjellsjøen, Dønna, Solfjellsjøen, 8820 Dønna | 1971-03-13 | -- | 1971–1978 | 2 | |
| Moskovskij literaturnyj teatr | Moskovskij literaturnyj teatr | Russia, Moscow | 1958-06- | -- | 1958 | 1 | |
| Mayo Teatral | Mayo Teatral | Cuba, Havana | 2006-05-16 | 2006-05-17 | 2006 | 1 | |
| Markgrafenhalle | Markgrafenhalle | Germany, Neustadt/Aisch | 1980-02-24 | -- | 1980 | 1 | |
| Metro Arts | Metro Arts | Australia, Brisbane, Edward St | 1994-03-01 | 1994-03-05 | 1994 | 1 | |
| Malyj Teatr | Malyj Teatr (Maly Theatre) | Russia, Moscow, Theatre Square, 1 | 1892-01-14 | -- | 1892–1972 | 10 | |
| Mosjøen | Mosjøen | Norway, Mosjøen | 1966-05-08 | -- | 1966–2005 | 6 | |
| Maximteatern | Maximteatern | Sweden, Borlänge, Tunagatan 42, | 2010-10-26 | -- | 2010 | 1 | |
| Minsk | Minsk | Belarus, Minsk | 2008-10-09 | 2015-10-10 | 2008–2015 | 2 | |
| Mĕstské divadlo Brno | Mĕstské divadlo Brno | Czech Republic, Brno, Lidická 16 | 1969-01-18 | 2000-05-14 | 1969–2000 | 3 | |
| Milan | Milan | Italy, Milan | 1899-12-12 | -- | 1899 | 1 | |
| Markgräfliches Opernhaus Bayreuth | Markgräfliches Opernhaus Bayreuth | Germany, Bayreuth, Opernstraße 14 | 1922-09-23 | -- | 1922–1972 | 2 | |
| Meieriscenen | Meieriscenen | Norway, Tromsø, Strandveien | 2004-07-13 | 2004-07-18 | 2004 | 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 | |
| Merlin Theatre | Merlin Theatre | England, Frome, Bath Rd | 1993-10-21 | 2014-11-07 | 1993–2014 | 2 | |
| Marrucino | Teatro | Italy, Chieti | -- | -- | | | |
| Marlborough College | Marlborough College | England, Marlborough, Wiltshire, Bath Road | 1999-04-29 | -- | 1999 | 1 | |
| Main Theatre, The | The Main Theatre | England, Hexham, Beaumont Street | 2022-09-28 | 2022-09-29 | 2022 | 1 | |
| Mainstage Theatre | Mainstage Theatre | United States of America, Wilmington, 601 S College Rd | 2018-04-19 | 2018-04-22 | 2018 | 1 | |
| Music and Dramatic Arts Building, Louisiana State University | Music and Dramatic Arts Building, Louisiana State University | United States of America, Baton Rouge | 1937-01-14 | 1999-10-02 | 1937–1999 | 2 | |
| Moyse Hall | Moyse Hall | Canada, Montréal, 853 Rue Sherbrooke O | 1933-10-18 | 1933-10-21 | 1933 | 1 | |
| Mogilev Regional Puppet Theater | Mogilev Regional Puppet Theater | Belarus | -- | -- | | | |
| Metropolitan Hotel | Metropolitan Hotel | United States of America, Salt Lake City | 1893-03-24 | 1893-03-24 | 1893 | 1 | |
| Morinomiya pirotihōru | Morinomiya pirotihōru (Morinomiya Piloti Hall) | Japan, Osaka, 1 Chome-17-5 Morinomiyachuo | 2018-12-27 | 2018-12-30 | 2018 | 1 | |
| Městské divadlo Děčín | Městské divadlo Děčín | Czech Republic, Děčín, Teplická 587/75 | 2006-05-29 | -- | 2006 | 1 | |
| Midland Hotel Theatre | Midland Hotel Theatre | England, Manchester, 16 Peter Street | 1905-03-24 | -- | 1905 | 1 | |
| Møre og Romsdal | Møre og Romsdal | Norway, Møre og Romsdal | 1990-05- | 1997-04-30 | 1990–1997 | 2 | |
| Micşuneştii Mari | Micşuneştii Mari | Romania, Micşuneştii Mari | -- | -- | | | |
| Municipal Hall | Municipal Hall | South Korea, Seoul, 110, Sejong-daero, Jung-gu | 1934-06-23 | 1934-06-23 | 1934 | 1 | |
| Maison de la Culture de Tournai | Maison de la Culture de Tournai | Belgium, Tournai, Avenue des Frères Rimbaut 2 | 1996-02-27 | 1996-02-28 | 1996–2004 | 2 | |
| Music Hall Chicago | Music Hall Chicago | United States of America, Chicago, 1020 W Sheridan Rd | 1905-03-29 | 1907-06-08 | 1905–1907 | 3 | |
| Messepalast Vienna | Messepalast Vienna | Austria, Wien | 1993-06-09 | 1993-06-12 | 1993 | 1 | |
| Midsund skule | Midsund skule | Norway, Midsund, Midsund kommune | 2007-04-16 | -- | 2007 | 1 | |
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