| Montréal | Montréal | Canada, Montréal | 1918-05-10 | -- | 1918 | 1 | |
| Magyar Állami Operaház | Magyar Állami Operaház (Hungarian State Opera House) | Hungary, Budapest, Andrássy út 22 | 2017-04-10 | -- | 2017 | 1 | |
| Manchester Opera House | Manchester Opera House | England, Manchester, 3 Quay Street | 1964-10-19 | -- | 1964 | 1 | |
| Masque Theater | Masque Theater | United States of America, New York | 1966-04-18 | -- | 1966 | 1 | |
| Minnesota University Chapel | Minnesota University Chapel | United States of America, Minneapolis | 1926-02-16 | -- | 1926 | 1 | |
| Minor Hall Theatre | Minor Hall Theatre | United States of America, Charlottesville, 735 Anderson Hill Rd | 1963-05-13 | 1963-05-18 | 1963 | 1 | |
| Mladinski Kulturen Centar | Mladinski Kulturen Centar (MKC) (Youth Cultural Center Skopje) | Macedonia, Skopje, 15 MK, Dimitar Vlahov Walk 1000, | 2013-09-21 | 2013-09-21 | 2013 | 1 | |
| Malaâ scena na Ordynke | Malaâ scena na Ordynke (Ordynka stage of Maly Theatre) | Russia, Moscow, Ulitsa Bol'shaya Ordynka, 69 | 2009-11-06 | 2009-11-08 | 2009 | 1 | |
| Memorial Hall, University of North Carolina | Memorial Hall, University of North Carolina | United States of America, Chapel Hill | 1933-10-13 | -- | 1933 | 1 | |
| Manbites Dog Theater | Manbites Dog Theater | United States of America, Durham, 703 Foster St | 2006-02-02 | 2006-02-19 | 2006 | 1 | |
| Mallette Studio Theatre | Mallette Studio Theatre | United States of America, Evansville, 8600 University Blvd | 2010-03-18 | 2010-04-02 | 2010 | 1 | |
| Mecklenburgisches Staatstheater Schwerin | Mecklenburgisches Staatstheater Schwerin | Germany, Schwerin, Alter Garten 2 | 1928-11-01 | 2009-01-10 | 1928–2015 | 13 | |
| Madison | Madison | United States of America, Madison | 1903-12-25 | 1903-12-25 | 1903 | 1 | |
| Marquam Grand Theatre | Marquam Grand Theatre | United States of America, Portland | 1904-01-27 | 1904-01-28 | 1904 | 1 | |
| Microtheater | Microtheater | Netherlands, GX Delft, Kerkstraat 19 | 1994-11-15 | 1994-12-17 | 1994 | 1 | |
| Moland ungdomsskole | Moland ungdomsskole | Norway, Moland | 1997-09-03 | -- | 1997 | 1 | |
| Montgomery Theatre | Montgomery Theatre | United States of America, Montgomery | 1903-10-24 | 1904-11-12 | 1903–1904 | 3 | |
| Mount Carmel High School | Mount Carmel High School | United States of America, Mount Carmel | 1914-11-27 | 1914-11-27 | 1914 | 1 | |
| Muktadhara Auditorium | Muktadhara Auditorium | India, New Delhi, 18 - 19, Bhai Veer Singh Marg, Gole Market, Connaught Place | 2007-04-15 | -- | 2007 | 1 | |
| Meieriscenen | Meieriscenen | Norway, Tromsø, Strandveien | 2004-07-13 | 2004-07-18 | 2004 | 1 | |
| Moskovskij dramatičeskij teatr | Moskovskij dramatičeskij teatr | Russia, Moscow | 1957-09-18 | -- | 1957 | 1 | |
| Mermaid Theatre | Mermaid Theatre | England, London, Puddle Dock | 1961-02-16 | -- | 1961 | 1 | |
| MasthuggsTeatern | MasthuggsTeatern | Sweden, Göteborg, Masthuggsterrassen 3 | 2002-10-11 | 2003-06-11 | 2002–2003 | 2 | |
| Marrucino | Teatro | Italy, Chieti | -- | -- | | | |
| Mzuzu University | Mzuzu University | Malawi, Mzuzu | 2006-06-03 | -- | 2006 | 1 | |
| Maximum Uniq Hall | Maximum Uniq Hall | Turkey, Maslak Ayazağa Caddesi, Sarıyer/İstanbul, Türkiye | 2023-11-05 | 2023-11-05 | 2023 | 1 | |
| McCarter Theatre | McCarter Theatre | United States of America, Princeton, 91 University Place | 1973-03-29 | 1996-05-26 | 1973–1996 | 3 | |
| McMillan Theater | McMillan Theater | United States of America, New York, 2960 Broadway | 1937-03-13 | -- | 1937 | 1 | |
| Morelia | Morelia | Mexico, Morelia | 2006-06-02 | -- | 2006 | 1 | |
| McSorley’s Square | McSorley’s Square | Vietnam, Ho Chi Minh City, 4 Thao Dien, District 2 | 2014-06-12 | 2014-06-15 | 2014 | 1 | |
| Malmö | Malmö | Sweden, Malmö | 1997-10-15 | -- | 1997 | 1 | |
| Metro Ball Theatre | Metro Ball Theatre (مسرح عبد المنعم مدبولى) | Egypt, Cairo | 2006-07-15 | 2006-07-16 | 2006 | 1 | |
| Markten, De | De Markten | Switzerland, Brussels, Oude Graanmarkt 5 | 1990-09-16 | 1990-09-17 | 1990 | 1 | |
| Moskovskij Hudožestvennyj akademičeskij teatr | Moskovskij Hudožestvennyj akademičeskij teatr (Moscow Art Theatre) | Russia, Moscow, Kamergerskiy Pereulok 3 | 1899-02-19 | -- | 1899–1960 | 8 | |
| Metropolitan | Metropolitan | United States of America, Minneapolis | 1906-12-06 | 1910-08-10 | 1906–1910 | 2 | |
| MFA Studio 208, University of Houston School of Theatre & Dance | MFA Studio 208, University of Houston School of Theatre & Dance | United States of America, Houston, Cynthia Woods Mitchell Center for the Arts | 2009-09-18 | 2009-09-20 | 2009 | 1 | |
| Maison de la Culture de Loire-Atlantique | Maison de la Culture de Loire-Atlantique | France, Nantes | 1995-10-05 | 1995-10-25 | 1995 | 1 | |
| Midsund skule | Midsund skule | Norway, Midsund, Midsund kommune | 2007-04-16 | -- | 2007 | 1 | |
| Montfort, Le | Le Montfort | France, Paris, 106 Rue Brancion | 2018-09-18 | 2018-10-06 | 2018 | 1 | |
| M.M.T. | M.M.T. | Belgium, Mechelen | 2002-05-26 | -- | 2002 | 1 | |
| Masque Theatre | Masque Theatre | South Africa, Muizenberg, 37 Main Rd, | 2013-03-15 | 2013-03-23 | 2013 | 1 | |
| Městské divadlo Jablonec nad Nisou | Městské divadlo Jablonec nad Nisou | Czech Republic, Jablonec nad Nisou, Liberecká 5/1900 | 2006-12-04 | -- | 2006 | 1 | |
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