| Marjorie Lyons Playhouse | Marjorie Lyons Playhouse | United States of America | 2019-10-02 | 2019-10-06 | 2019 | 1 | |
| Mark Hellinger Theatre | Mark Hellinger Theatre | United States of America, Manhattan, 237 West 51st Street | 1982-09-23 | -- | 1982 | 1 | |
| Marker Ungdomsskole | Marker Ungdomsskole | Norway, Marker, Marker | 2005-11-23 | -- | 2005 | 1 | |
| Market Place | Market Place | Northern Ireland, Armagh, Market St | 2011-05-28 | -- | 2011–2018 | 2 | |
| Market Theatre | Market Theatre | South Africa, Johannesburg, 56 Margaret Mcingana St,Johannesburg 2048,Gauteng, Sør-Afrika | 1990-05-08 | 1990-06-09 | 1990–1994 | 2 | |
| Markgrafenhalle | Markgrafenhalle | Germany, Neustadt/Aisch | 1980-02-24 | -- | 1980 | 1 | |
| Markgrafentheater | Markgrafentheater | Germany, Erlangen, Theaterpl. 2 | 2000-03-09 | 2010-06-13 | 2000–2022 | 5 | |
| Markgräfliches Opernhaus Bayreuth | Markgräfliches Opernhaus Bayreuth | Germany, Bayreuth, Opernstraße 14 | 1922-09-23 | -- | 1922–1972 | 2 | |
| Markideio Theatro | Markideio Theatro | Cyprus, Paphos, Andrea Geroudi | 2008-04-18 | -- | 2008 | 1 | |
| Markt, Theater am | Theater am Markt | Germany, Eisenach, Goldschmiedenstraße 12 | 2018-11-24 | 2019-03-02 | 2018 | 1 | |
| Markten, De | De Markten | Switzerland, Brussels, Oude Graanmarkt 5 | 1990-09-16 | 1990-09-17 | 1990 | 1 | |
| Marl | Marl | Germany, Marl | 1954-- | -- | 1954 | 1 | |
| Marlborough College | Marlborough College | England, Marlborough, Wiltshire, Bath Road | 1999-04-29 | -- | 1999 | 1 | |
| Marleen Forkas Studio One Theater | Marleen Forkas Studio One Theater | United States of America, Florida, Boca Raton | 2021-10-01 | 2021-10-10 | 2021 | 1 | |
| Marlo grendahus | Marlo grendahus | Norway, Skjåk | 1969-02-19 | -- | 1969 | 4 | |
| Marloo Theatre | Marloo Theatre | Australia, Greenmount, 20 Marloo Road | 2008-07-16 | 2008-08-02 | 2008 | 1 | |
| Marlowe Theatre | Marlowe Theatre | England, Canterbury, The Friars | 2018-07-19 | 2018-07-21 | 2018 | 1 | |
| Marmorhaus | Marmorhaus | Germany, Berlin, Kurfürstendamm 236 | 1919-04-06 | -- | 1919 | 1 | |
| Marquam Grand Theatre | Marquam Grand Theatre | United States of America, Portland | 1904-01-27 | 1904-01-28 | 1904 | 1 | |
| Marquette | Marquette | United States of America, Marquette | 1903-11-24 | 1903-11-24 | 1903 | 1 | |
| Marquette Theatre | Marquette Theatre | United States of America, Louisiana | 2024-09-05 | 2024-09-22 | 2024 | 1 | |
| Marrucino | Teatro | Italy, Chieti | -- | -- | | | |
| Marsden Theatre | Marsden Theatre | Australia, Parramatta, Marsden Street | 1978-07-05 | 1978-07-09 | 1978 | 1 | |
| Marseille | Marseille | France, Marseille | 1897-03-16 | -- | 1897 | 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 | |
| Martha R. Tatum Theatre | Martha R. Tatum Theatre | United States of America, Hattiesburg, Theatre & Dance Building, University of Southern Mississippi | 2006-03-16 | 2006-03-26 | 2006 | 1 | |
| Mary Anderson Theatre | Mary Anderson Theatre | United States of America, Louisville | 1908-03-26 | 1908-03-30 | 1908 | 1 | |
| Mary Gray Munroe Theater, Emory University | Mary Gray Munroe Theater, Emory University | United States of America, Atlanta, 605 Asbury Circle NE | 1998-02-15 | 2009-04-26 | 1998–2009 | 4 | |
| Mary Moody Northen Theatre | Mary Moody Northen Theatre | United States of America, Austin, 3001 S Congress Ave | 2010-02-11 | 2010-02-21 | 2010 | 1 | |
| Maryland Theatre | Maryland Theatre | United States of America, Baltimore | 1903-10-21 | 1903-10-21 | 1903 | 1 | |
| Mascheranova, Teatro | Teatro Mascheranova | Italy, Pontecagnano Faiano, Via Isonzo, 6-10 | 2018-02-17 | 2018-03-11 | 2018 | 1 | |
| Maskavas Latviešu teātris | Maskavas Latviešu teātris | Russia, Moscow, Moscow | 1917-01-14 | -- | 1917 | 1 | |
| Mason Opera House | Mason Opera House | United States of America, Los Angeles | 1903-12-24 | 1910-06-29 | 1903–1910 | 4 | |
| Masonic Hall | Masonic Hall | United States of America, Cleveland, 3615 Euclid Ave | 1924-04-09 | 1924-04-12 | 1924 | 1 | |
| Masonic Opera House | Masonic Opera House | United States of America, Chillicothe | 1903-12-05 | 1908-04-06 | 1903–1908 | 2 | |
| Masonic Temple | Masonic Temple | United States of America, Portland | 1910-02-28 | 1910-02-28 | 1910 | 1 | |
| Masque Theater | Masque Theater | United States of America, New York | 1966-04-18 | -- | 1966 | 1 | |
| Masque Theatre | Masque Theatre | South Africa, Muizenberg, 37 Main Rd, | 2013-03-15 | 2013-03-23 | 2013 | 1 | |
| Masrah Al-Falaki | Masrah Al-Falaki (Al-Falaki Theater) | Egypt, Cairo Governorate, Al Falki, Abdeen, | 2024-10-10 | -- | 2024 | 1 | |
| masrah dawaar alshams | masrah dawaar alshams (Sunflower Theater) | Lebanon, Beirut, VGC8+G34 | 2024-- | -- | 2024 | 1 | |
| Massachusetts Institute of Technology (MIT) | Massachusetts Institute of Technology (MIT) | United States of America, Cambridge, 77 Massachusetts Ave | 1964-01-24 | -- | 1964 | 1 | |
| Master Institute Theatre | Master Institute Theatre | United States of America, New York | 1947-04-26 | 1947-05-02 | 1947 | 1 | |
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