| Maaspoort | Maaspoort | Netherlands, Venlo, Oude Markt 30 | 2009-10-28 | -- | 2009–2013 | 2 | |
| Målarsalen | Målarsalen | Sweden, Stockholm, Linnégatan 69 | 2013-02-22 | 2013-04-25 | 2013 | 1 | |
| Møvig skole | Møvig skole | Norway, Kristiansand, Kristiansand | 2006-10-23 | -- | 2006 | 1 | |
| Mørkvedhallen | Mørkvedhallen | Norway, Bodø, Steggveien | 1997-11-03 | 1997-11-04 | 1997 | 1 | |
| Møringa på Karljohansvern | Møringa på Karljohansvern | Norway, Horten | 2013-08-28 | 2013-09-07 | 2013 | 1 | |
| Møre og Romsdal tekniske skole | Møre og Romsdal tekniske skole | Norway, Ålesund, Fogd Greves vei 9 | 1970-02-09 | -- | 1970 | 1 | |
| Møre og Romsdal | Møre og Romsdal | Norway, Møre og Romsdal | 1990-05- | 1997-04-30 | 1990–1997 | 2 | |
| Møre Folkehøgskole | Møre Folkehøgskole | Norway, Ørsta, Kyrkjegata 48 | 1969-09-08 | -- | 1969 | 2 | |
| Mönchengladbach | Mönchengladbach | Germany, Mönchengladbach | 1893-10-09 | -- | 1893–2001 | 2 | |
| Møllesalen | Møllesalen | Norway, Strusshamn | 2005-09-03 | -- | 2005 | 1 | |
| Møllergadens Theater - Folketheatret | Møllergadens Theater - Folketheatret | Norway, Kristiania (Oslo) | 1878-11-06 | 1884-04-19 | 1878–1884 | 4 | |
| Märchenbühne Gudensberg | Märchenbühne Gudensberg | Germany, Gudensberg | 2025-07-06 | -- | 2025 | 1 | |
| Männedorf ZH | Männedorf ZH | Switzerland | 2002-10-04 | -- | 2002 | 1 | |
| Mzuzu University | Mzuzu University | Malawi, Mzuzu | 2006-06-03 | -- | 2006 | 1 | |
| Művész Színház | Művész Színház | Hungary, Budapest, Paulay Ede utca 35. | 1948-01-08 | -- | 1948 | 1 | |
| Mystic Seaport Museum | Mystic Seaport Museum | United States of America, Mystic, 75 Greenmanville Avenue | 2022-07-16 | -- | 2022 | 1 | |
| Mystery Brewery | Mystery Brewery | United States of America, Hillsborough, 437 Dimmock's Mill Rd | 2018-01-18 | 2018-02-03 | 2018 | 1 | |
| Mysen, Festiviteten | Festiviteten Mysen (Festiviteten) | Norway, Mysen, Storgaten 28 | 1960-10-22 | -- | 1960–2005 | 6 | |
| Münchner Volkstheater | Münchner Volkstheater | Germany, Munich, Brienner Str. 50 | 2002-03-01 | 2013-03-02 | 2002–2013 | 7 | |
| 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 | |
| Münchner Kammerspiele | Münchner Kammerspiele | Germany, Munich, Maximilianstraße 28 | 1900-11-08 | 2023-03-02 | 1900–2022 | 31 | |
| Münchener Künstler-Theater | Münchener Künstler-Theater | Germany, Munich | 1914-07-30 | -- | 1914 | 1 | |
| Mykolaiv | Mykolaiv | Ukraine, Mykolaiv | 1903-03-04 | 1904-02-22 | 1903–1904 | 3 | |
| Myklebust barne- og ungdomsskule | Myklebust barne- og ungdomsskule | Norway, Syvde | 2006-10-03 | -- | 2006 | 1 | |
| Myeongdong Theatre | Myeongdong Theatre | South Korea, Seoul, 35 Myeongdong-gil, Jung-gu | 2012-05-02 | 2025-06-01 | 2012–2025 | 2 | |
| Myar Opera House | Myar Opera House | United States of America, El Paso | 1903-12-10 | 1903-12-10 | 1903 | 1 | |
| Muziekgebouw aan 't IJ | Muziekgebouw aan 't IJ | Netherlands, Amsterdam, Piet Heinkade 1 | 2013-06-02 | 2013-06-04 | 2013 | 1 | |
| Muskogee High School | Muskogee High School | United States of America, Muskogee, 3200 E Shawnee Rd | 1910-12-23 | 1910-12-23 | 1910 | 1 | |
| Musikteatret Vejle | Musikteatret Vejle | Denmark, Vejle, Vedelsgade 25 | 2002-11-05 | -- | 2002–2018 | 5 | |
| Musikteatret Holstebro | Musikteatret Holstebro | Denmark, Holstebro, Den Røde Plads 16 | 2004-11-02 | 2004-11-03 | 2004–2018 | 3 | |
| Musikteatret Albertslund | Musikteatret Albertslund | Denmark, Albertslund, Bibliotekstorvet 1-3 | 1994-06-19 | 1994-06-21 | 1994–2018 | 5 | |
| Musikkteatret, Vestbanen | Musikkteatret, Vestbanen | Norway, Oslo, Enga 3 | 1993-04-14 | 1994-03-13 | 1993–1994 | 2 | |
| Musikhuset Aarhus | Musikhuset Aarhus | Denmark, Århus, Thomas Jensens Alle | 2002-03-11 | 2006-09-16 | 2002–2018 | 4 | |
| Musikhuset Esbjerg | Musikhuset Esbjerg | Denmark, Esbjerg, Havnegade 18 | 2004-11-01 | -- | 2004–2018 | 4 | |
| Musikefterskolen i Humble | Musikefterskolen i Humble | Denmark, Humble, Hovedgaden 21 | 2013-10-21 | -- | 2013 | 1 | |
| Musik-Mittelschule Henndorf | Musik-Mittelschule Henndorf | Austria, Henndorf am Wallersee, Sportplatzstraße 10 | 2018-04-20 | 2018-04-24 | 2018 | 1 | |
| Musical Theatre Works (MTW) | Musical Theatre Works (MTW) | United States of America, New York | 2000-11-03 | 2000-11-12 | 2000 | 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 | |
| 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 | |
| Music Hall | Music Hall | United States of America, Akron | 1908-04-10 | 1908-04-10 | 1908 | 1 | |
| Music Auditorium, University of Minnesota | Music Auditorium, University of Minnesota | United States of America, Minneapolis | 1933-06-21 | 1940-10-22 | 1933–1940 | 2 | |
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