| Ménilmontant, Théâtre de | Théâtre de Ménilmontant | France, Paris, 15 Rue du Retrait | 2015-10-13 | 2015-10-25 | 2015 | 1 | |
| Musical Theatre Works (MTW) | Musical Theatre Works (MTW) | United States of America, New York | 2000-11-03 | 2000-11-12 | 2000 | 1 | |
| Melville | Melville | Australia, Perth | 2012-07-13 | 2022-08-20 | 2012–2022 | 2 | |
| Münchner Schauspielhaus | Münchner Schauspielhaus | Germany, Munich, Neuturmstraße 1 | 1897-11-17 | 1993-04-29 | 1897–1991 | 5 | |
| Münchner Künstlertheater | Münchner Künstlertheater | Germany, Munich | 1909-08-20 | -- | 1909 | 1 | |
| Moscow | Moscow | Russia, Moscow | 1904-04-29 | 2014-10-06 | 1904–2014 | 15 | |
| Mzuzu University | Mzuzu University | Malawi, Mzuzu | 2006-06-03 | -- | 2006 | 1 | |
| McKissick's Opera House | McKissick's Opera House | United States of America, Reno | 1904-01-16 | 1907-01-09 | 1904–1907 | 3 | |
| Microtheater | Microtheater | Netherlands, GX Delft, Kerkstraat 19 | 1994-11-15 | 1994-12-17 | 1994 | 1 | |
| Melhus | Melhus | Norway, Melhus | 1991-10-14 | -- | 1991–2002 | 3 | |
| McCarter Theatre | McCarter Theatre | United States of America, Princeton, 91 University Place | 1973-03-29 | 1996-05-26 | 1973–1996 | 3 | |
| Masque Theater | Masque Theater | United States of America, New York | 1966-04-18 | -- | 1966 | 1 | |
| Modum Kulturhuset | Modum Kulturhuset | Norway, Vikersund, Rådhusveien 1 | 1993-02-14 | 2015-11-08 | 1993–2022 | 12 | |
| Madlenianum Opera & Theatre | Madlenianum Opera & Theatre | Serbia, Belgrade, Glavna 32 | 2011-12-10 | -- | 2011 | 1 | |
| Montréal | Montréal | Canada, Montréal | 1918-05-10 | -- | 1918 | 1 | |
| Mystery Brewery | Mystery Brewery | United States of America, Hillsborough, 437 Dimmock's Mill Rd | 2018-01-18 | 2018-02-03 | 2018 | 1 | |
| Moss Hotel | Moss Hotel | Norway, Moss, Dronningens gate 21 | 1927-09-06 | -- | 1927–1928 | 3 | |
| Minnesota University Chapel | Minnesota University Chapel | United States of America, Minneapolis | 1926-02-16 | -- | 1926 | 1 | |
| Musikteatret Vejle | Musikteatret Vejle | Denmark, Vejle, Vedelsgade 25 | 2002-11-05 | -- | 2002–2018 | 5 | |
| 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 | |
| Maximteatern | Maximteatern | Sweden, Borlänge, Tunagatan 42, | 2010-10-26 | -- | 2010 | 1 | |
| Maison dans la Vallée | Maison dans la Vallée | France, Avon, 27-29 Rue du Vieux Ru | 2019-03-21 | -- | 2019 | 1 | |
| Maryland Theatre | Maryland Theatre | United States of America, Baltimore | 1903-10-21 | 1903-10-21 | 1903 | 1 | |
| Merrimack Repertory Theatre | Merrimack Repertory Theatre | United States of America, Lowell, 50 E Merrimack St | 1991-03-20 | 1991-04-06 | 1991 | 1 | |
| Marine Theatre | Marine Theatre | England, Dorset, Church St, Lyme Regis | 2006-05-31 | -- | 2006–2007 | 2 | |
| Mecklenburgisches Staatstheater Schwerin | Mecklenburgisches Staatstheater Schwerin | Germany, Schwerin, Alter Garten 2 | 1928-11-01 | 2009-01-10 | 1928–2015 | 13 | |
| M.M.T. | M.M.T. | Belgium, Mechelen | 2002-05-26 | -- | 2002 | 1 | |
| Muktadhara Auditorium | Muktadhara Auditorium | India, New Delhi, 18 - 19, Bhai Veer Singh Marg, Gole Market, Connaught Place | 2007-04-15 | -- | 2007 | 1 | |
| MasthuggsTeatern | MasthuggsTeatern | Sweden, Göteborg, Masthuggsterrassen 3 | 2002-10-11 | 2003-06-11 | 2002–2003 | 2 | |
| Moland ungdomsskole | Moland ungdomsskole | Norway, Moland | 1997-09-03 | -- | 1997 | 1 | |
| Markgrafentheater | Markgrafentheater | Germany, Erlangen, Theaterpl. 2 | 2000-03-09 | 2010-06-13 | 2000–2022 | 5 | |
| Meieriscenen | Meieriscenen | Norway, Tromsø, Strandveien | 2004-07-13 | 2004-07-18 | 2004 | 1 | |
| Musik-Mittelschule Henndorf | Musik-Mittelschule Henndorf | Austria, Henndorf am Wallersee, Sportplatzstraße 10 | 2018-04-20 | 2018-04-24 | 2018 | 1 | |
| Măcin | Măcin | Romania, Măcin | -- | -- | | | |
| Marrucino | Teatro | Italy, Chieti | -- | -- | | | |
| Michailov Teatr | Michailov Teatr | Russia, St. Petersburg | 1897-09-24 | -- | 1897 | 1 | |
| Mantziusgården | Mantziusgården | Denmark, Birkerød, Johan Mantzius Vej 7 | 2004-12-07 | -- | 2004 | 1 | |
| Moskovskij dramatičeskij teatr imeni K. Stanislavskogo (Stanislavskij Elektroteater) | Moskovskij dramatičeskij teatr imeni K. Stanislavskogo (Stanislavsij Elektroteater) | Russia, Moscow, Tverskaya St, 23 | 1990-12- | -- | 1990 | 1 | |
| Micşuneştii Mari | Micşuneştii Mari | Romania, Micşuneştii Mari | -- | -- | | | |
| Matienzo Cultural Club | Matienzo Cultural Club | Argentina, Buenos Aires, Pringles 1249 | 2018-07-31 | 2018-07-31 | 2018 | 1 | |
| Markgrafenhalle | Markgrafenhalle | Germany, Neustadt/Aisch | 1980-02-24 | -- | 1980 | 1 | |
| Maltings Arts Centre | Maltings Arts Centre | England, St Albans, Hertfordshire, The Maltings | 1993-09-24 | -- | 1993 | 1 | |
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