| Musikefterskolen i Humble | Musikefterskolen i Humble | Denmark, Humble, Hovedgaden 21 | 2013-10-21 | -- | 2013 | 1 | |
| Mosonmagyaróvár | Mosonmagyaróvár | Hungary, Mosonmagyaróvár | 1924-05-02 | -- | 1924–1936 | 4 | |
| Markideio Theatro | Markideio Theatro | Cyprus, Paphos, Andrea Geroudi | 2008-04-18 | -- | 2008 | 1 | |
| Møllergadens Theater - Folketheatret | Møllergadens Theater - Folketheatret | Norway, Kristiania (Oslo) | 1878-11-06 | 1884-04-19 | 1878–1884 | 4 | |
| 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 | |
| Moland ungdomsskole | Moland ungdomsskole | Norway, Moland | 1997-09-03 | -- | 1997 | 1 | |
| Moscow Academic Mayakovsky Theatre | Moscow Academic Mayakovsky Theatre | Russia, Moscow, Bolshaya Nikitskaya Street, 19/13 | 2013-04-27 | -- | 2013 | 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 | |
| Maghemo Secondary School | Maghemo Secondary School | Malawi, Karonga | 2006-06-13 | -- | 2006 | 1 | |
| Minnesota University Chapel | Minnesota University Chapel | United States of America, Minneapolis | 1926-02-16 | -- | 1926 | 1 | |
| Meadow Brook Theatre | Meadow Brook Theatre | United States of America, Rochester, 207 Wilson Blvd | 1967-11-10 | -- | 1967 | 1 | |
| Maxim Gorki Theater | Maxim Gorki Theater | Germany, Berlin, Am Festungsgraben 2 | 1956-01-11 | 2021-10-09 | 1956–2021 | 18 | |
| Maitland Repertory Theatre | Maitland Repertory Theatre | Australia, Maitland, 244 High St | 2020-12-09 | 2020-12-19 | 2020 | 1 | |
| Munye Theatre | Munye Theatre | South Korea, Seoul | 2000-08-27 | 2000-09-03 | 2000 | 1 | |
| Mallette Studio Theatre | Mallette Studio Theatre | United States of America, Evansville, 8600 University Blvd | 2010-03-18 | 2010-04-02 | 2010 | 1 | |
| Městské komorní divadlo | Městské komorní divadlo | Czech Republic, Prague | 1936-03-31 | -- | 1936–1943 | 2 | |
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