| Malmö Teater | Malmö Teater | Sweden, Malmö | 1872-02-01 | 1928-04-16 | 1872–1936 | 23 | |
| Malmö | Malmö | Sweden, Malmö | 1997-10-15 | -- | 1997 | 1 | |
| Malmö Stadsteater | Malmö Stadsteater | Sweden, Malmö, Kalendegatan 12 | 1951-11-29 | 2023-01-28 | 1951–2022 | 9 | |
| Malmö Stadsteater (Intiman) | Malmö Stadsteater (Intiman) | Sweden, Malmö, Östra Rönneholmsvägen 22 | 1954-10-08 | 2025-05-17 | 1954–2025 | 12 | |
| Mariestad | Mariestad | Sweden, Mariestad | 1936-10-08 | 1989-11-20 | 1936–1993 | 5 | |
| Mellösagården | Mellösagården | Sweden, Mellösa, Lyckebovägen 3-1 | 2019-09-14 | 2019-09-14 | 2019 | 1 | |
| Motala | Motala | Sweden, Motala | 1992-10- | -- | 1992 | 1 | |
| Margaretaparken | Margaretaparken | Sweden, Stockholm, Gamla Enskede | 2003-08-30 | 2003-09-19 | 2003 | 1 | |
| Målarsalen | Målarsalen | Sweden, Stockholm, Linnégatan 69 | 2013-02-22 | 2013-04-25 | 2013 | 1 | |
| Midgårdsskolan | Midgårdsskolan | Sweden, Umeå, Regementsområdet | 2006-11-15 | 2006-11-16 | 2006 | 1 | |
| Medborgarhuset | Medborgarhuset | Sweden, Vansbro, Norra Allégatan 30 | 2010-10-28 | -- | 2010 | 1 | |
| Männedorf ZH | Männedorf ZH | Switzerland | 2002-10-04 | -- | 2002 | 1 | |
| Mehrzwecksaal Schulhaus Ebnet | Mehrzwecksaal Schulhaus Ebnet | Switzerland, Andwil, Arneggerstrasse 14 | 2003-11-21 | 2003-12-05 | 2003 | 1 | |
| Markten, De | De Markten | Switzerland, Brussels, Oude Graanmarkt 5 | 1990-09-16 | 1990-09-17 | 1990 | 1 | |
| Melahat Ozgu Stage | D.T.C.F Tiyatro Melahat Özgü Uygulama Sahnesi (D.T.C.F. Theatre Department Melahat Ozgu Stage) | Turkey, Ankara, Ankara Üniversitesi, Dil ve Tarih – Coğrafya Fakültesi, 06100 – Sıhhiye | 2017-03-27 | 2017-05-14 | 2017 | 1 | |
| Muhsin Ertugrul Sahnesi - Istanbul Büyükşehir Belediyesi Şehir Tiyatroları | Muhsin Ertugrul Sahnesi - Istanbul Büyükşehir Belediyesi Şehir Tiyatroları (Muhsin Ertugrul Stage - Istanbul Metropolitan Municipality City Theatres) | Turkey, Istanbul, Harbiye Mh., Darülbedayi Cd. No:3 | 1998-05-30 | 2023-04-19 | 1998–2023 | 4 | |
| Mall of İstanbul MOİ Sahne | Mall of İstanbul MOİ Sahne | Turkey, Istanbul, Mall of İstanbul AVM, Kat: 4 BAŞAKŞEHİR / İstanbul | 2023-11-19 | 2023-11-30 | 2023 | 1 | |
| Maximum Uniq Hall | Maximum Uniq Hall | Turkey, Maslak Ayazağa Caddesi, Sarıyer/İstanbul, Türkiye | 2023-11-05 | 2023-11-05 | 2023 | 1 | |
| Mukačeve | Mukačeve | Ukraine, Mukačeve | 1909-01- | 1927-03-08 | 1909–1941 | 8 | |
| Mykolaiv | Mykolaiv | Ukraine, Mykolaiv | 1903-03-04 | 1904-02-22 | 1903–1904 | 3 | |
| Muhlenberg College Theatre | Muhlenberg College Theatre | United States of America | 2024-11-14 | 2024-11-17 | 2024 | 1 | |
| Marjorie Lyons Playhouse | Marjorie Lyons Playhouse | United States of America | 2019-10-02 | 2019-10-06 | 2019 | 1 | |
| Muhlenberg College Theatre | Muhlenberg College Theatre | United States of America | -- | -- | | | |
| 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 | |
| Minneapolis Theater Garage | Minneapolis Theater Garage | United States of America, 711 W Franklin Ave | 1998-07-31 | 1998-08-30 | 1998 | 1 | |
| Main Stage Theatre | Main Stage Theatre | United States of America, Addison, 15650 Addison Rd | 2018-10-12 | 2018-11-04 | 2018 | 1 | |
| Music Hall | Music Hall | United States of America, Akron | 1908-04-10 | 1908-04-10 | 1908 | 1 | |
| Margaret Theater | Margaret Theater | United States of America, Anaconda | 1899-03-10 | 1905-12-07 | 1899–1905 | 3 | |
| Magnetic Theatre, The | The Magnetic Theatre | United States of America, Asheville, 375 Depot St | 2018-04-19 | 2018-05-05 | 2018 | 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 | |
| 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 | |
| Main Campus, Norman R. Roberts Lab Theatre, Kopecek Hall | Main Campus, Norman R. Roberts Lab Theatre, Kopecek Hall | United States of America, Bethlehem | 2013-11-21 | 2013-11-25 | 2013 | 1 | |
| Morrison Center for the Performing Arts | Morrison Center for the Performing Arts | United States of America, Boise, 2201 Cesar Chavez Lane | 2004-03-10 | 2004-03-21 | 2004 | 1 | |
| Memorial Hall Wish Theater | Memorial Hall Wish Theater | United States of America, Brunswick | 2007-03-01 | 2007-03-03 | 2007 | 1 | |
| Montwhite | Montwhite | United States of America, Burlington | 1909-04-26 | 1909-04-26 | 1909 | 1 | |
| 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 | |
| Massachusetts Institute of Technology (MIT) | Massachusetts Institute of Technology (MIT) | United States of America, Cambridge, 77 Massachusetts Ave | 1964-01-24 | -- | 1964 | 1 | |
| McLeod Theater, Southern Illinois University | McLeod Theater, Southern Illinois University | United States of America, Carbondale, 1100 Lincoln Dr | 1960-02-19 | 2003-12-07 | 1960–2003 | 4 | |
| Memorial Hall, University of North Carolina | Memorial Hall, University of North Carolina | United States of America, Chapel Hill | 1933-10-13 | -- | 1933 | 1 | |
| Minor Hall Theatre | Minor Hall Theatre | United States of America, Charlottesville, 735 Anderson Hill Rd | 1963-05-13 | 1963-05-18 | 1963 | 1 | |
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