| Mikkelin Teatteri | Mikkelin Teatteri | Finland, Mikkeli, Savilahdenkatu 11 | 1980-02-21 | -- | 1980 | 1 | |
| Merlyn Theatre | Merlyn Theatre (Malthouse Theatre) | Australia, Southbank, 113 Sturt St | 2012-02-17 | 2012-03-17 | 2012 | 1 | |
| Městské divadlo Plzeň | Městské divadlo Plzeň | Czech Republic, Plzeň | 1941-11-22 | -- | 1941 | 1 | |
| Mansfield | Mansfield | United States of America, Mansfield | 1903-10-23 | 1903-10-23 | 1903 | 1 | |
| Malvern Opera House | Malvern Opera House | United States of America, Malvern | 1896-05-22 | 1896-05-22 | 1896 | 1 | |
| Melbourne | Melbourne | Australia, Melbourne | -- | -- | | | |
| Macdonough Theatre | Macdonough Theatre | United States of America, Oakland | 1904-01-08 | 1908-12-16 | 1904–1908 | 7 | |
| Mains d'Œuvres | Mains d'Œuvres | France, Saint-Ouen, 1 Rue Charles Garnier | 2016-10-04 | 2016-10-09 | 2016 | 1 | |
| Mehregan Theater | Mehregan Theater | Iran, Tehran, District 11, Enghelab St, Khark St. | 2019-07-06 | 2021-09-10 | 2019–2021 | 2 | |
| Margetts Theatre | Margetts Theatre | United States of America, Provo, Franklin S. Harris Fine Arts Center | 2012-02-29 | 2012-03-10 | 2012 | 1 | |
| Murnau | Murnau | United States of America, Murnau | -- | -- | | | |
| Mendocino Theatre Company | Mendocino Theatre Company | United States of America, Mendocino, 45200 Little Lake St, CA 95460 | 2019-09-19 | 2019-10-20 | 2019 | 1 | |
| Mosjøen | Mosjøen | Norway, Mosjøen | 1966-05-08 | -- | 1966–2005 | 6 | |
| Moat Theatre, The | The Moat Theatre | Ireland, Naas, Co.Kildare | 2007-02-20 | 2019-06-08 | 2007–2019 | 2 | |
| Miljøbygget | Miljøbygget | Norway, Tana, Tana | 1983-11-15 | -- | 1983–2007 | 2 | |
| Micklefield Hall | Micklefield Hall | England, Rickmansworth, Hertfordshire, Sarratt Rd, Sarratt | 2014-03-22 | 2014-03-28 | 2014 | 1 | |
| Munye Theatre | Munye Theatre | South Korea, Seoul | 2000-08-27 | 2000-09-03 | 2000 | 1 | |
| Milan | Milan | Italy, Milan | 1899-12-12 | -- | 1899 | 1 | |
| Musikhuset Aarhus | Musikhuset Aarhus | Denmark, Århus, Thomas Jensens Alle | 2002-03-11 | 2006-09-16 | 2002–2018 | 4 | |
| Městské divadlo Na hradbách | Městské divadlo Na hradbách | Czech Republic, Brno | 1920-01-31 | -- | 1920–1928 | 3 | |
| Masque Theater | Masque Theater | United States of America, New York | 1966-04-18 | -- | 1966 | 1 | |
| Montereau | Montereau | France, Montereau | 1999-02-15 | 1999-02-19 | 1999 | 1 | |
| Music Hall Chicago | Music Hall Chicago | United States of America, Chicago, 1020 W Sheridan Rd | 1905-03-29 | 1907-06-08 | 1905–1907 | 3 | |
| Manhattan Theatre | Manhattan Theatre | United States of America, New York, 102 W. 33rd St | 1902-05-21 | 1902-05-30 | 1902–1905 | 6 | |
| Mendel Art Gallery | Mendel Art Gallery | Canada, Saskatoon, 950 Spadina Crescent E | 1975-03-02 | -- | 1975 | 1 | |
| Manbites Dog Theater | Manbites Dog Theater | United States of America, Durham, 703 Foster St | 2006-02-02 | 2006-02-19 | 2006 | 1 | |
| Mascheranova, Teatro | Teatro Mascheranova | Italy, Pontecagnano Faiano, Via Isonzo, 6-10 | 2018-02-17 | 2018-03-11 | 2018 | 1 | |
| Muskogee High School | Muskogee High School | United States of America, Muskogee, 3200 E Shawnee Rd | 1910-12-23 | 1910-12-23 | 1910 | 1 | |
| Městské divadlo v Mostě | Městské divadlo v Mostě | Czech Republic, Most, Divadelní 15 | 1991-03-22 | -- | 1991 | 1 | |
| Maison des Œuvres Saint Martin | Maison des Œuvres Saint Martin | France, Erstein, 9 Quai du Couvent | 2015-04-10 | -- | 2015 | 1 | |
| 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 | |
| Maison Franco-Japonaise | Maison Franco-Japonaise | Japan, Shibuya, Tokyo, 3 Chome-9-25 Ebisu | 1964-07-09 | 1964-07-11 | 1964 | 1 | |
| Mosjøen Kino og Teater | Mosjøen Kino og Teater | Norway, Mosjøen, Kinoplassen 2 | 1959-02-16 | -- | 1959–2022 | 11 | |
| Microtheater | Microtheater | Netherlands, GX Delft, Kerkstraat 19 | 1994-11-15 | 1994-12-17 | 1994 | 1 | |
| Molodezhnom teatre «Anzhazhement» im. V. S. Zagoruiko | Molodezhnom teatre «Anzhazhement» im. V. S. Zagoruiko (Youth Theater "ENGAGEMENT" named after V.S. Zagoruiko) | Russia, Tyumen Oblast, Olimpiyskaya Ulitsa, 8 А | 2020-02-14 | -- | 2020 | 1 | |
| Møre og Romsdal | Møre og Romsdal | Norway, Møre og Romsdal | 1990-05- | 1997-04-30 | 1990–1997 | 2 | |
| Musikteatret Albertslund | Musikteatret Albertslund | Denmark, Albertslund, Bibliotekstorvet 1-3 | 1994-06-19 | 1994-06-21 | 1994–2018 | 5 | |
| Music Hall at Fair Park | Music Hall at Fair Park | United States of America, Dallas, Preston Royal, 909 First Avenue | 2012-10-26 | 2012-10-28 | 2012 | 1 | |
| Mørkvedhallen | Mørkvedhallen | Norway, Bodø, Steggveien | 1997-11-03 | 1997-11-04 | 1997 | 1 | |
| Muktadhara Auditorium | Muktadhara Auditorium | India, New Delhi, 18 - 19, Bhai Veer Singh Marg, Gole Market, Connaught Place | 2007-04-15 | -- | 2007 | 1 | |
| Mitzi E. Newhouse Theater | Mitzi E. Newhouse Theater | United States of America, New York, West 65th Street | 2025-03-18 | 2025-04-26 | 2025 | 1 | |
| Murfatlar (Basarabi) | Murfatlar (Basarabi) | Romania, Murfatlar (Basarabi) | -- | -- | | | |
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