| Manchester Library | Manchester Library | United States, Manchester, 8067 E Main St | 2006-11-04 | -- | 2006 | 1 | |
| Manchester Opera House | Manchester Opera House | England, Manchester, 3 Quay Street | 1964-10-19 | -- | 1964 | 1 | |
| Mandal | Mandal | Norway, Mandal | 1982-11-11 | -- | 1982–1995 | 3 | |
| Mandal videregående skole | Mandal videregående skole | Norway, Mandal, Kallhammerveien 6 | 2006-03-20 | -- | 2006 | 1 | |
| Mandal, Kinoen | Kinoen Mandal | Norway, Mandal, Store Elvegate 35 | 1973-11-10 | 1997-11-20 | 1973–2006 | 10 | |
| Mandel Hall, University Of Chicago | Mandel Hall, University Of Chicago | United States, Chicago, 1131 East 57th Street | 1920-02-16 | 1981-02-22 | 1920–1981 | 2 | |
| Mandell Weiss FORUM Theatre | Mandell Weiss FORUM Theatre | United States, La Jolla, 2910 La Jolla Village Dr | 2011-02-18 | 2011-02-26 | 2011 | 1 | |
| Mandell Weiss Theater | Mandell Weiss Theater | United States, San Diego, Revelle College Dr | 1998-05-19 | 2014-02-08 | 1998–2014 | 2 | |
| Mangochi Secondary School | Mangochi Secondary School | Malawi, Mangochi | 2006-05-06 | -- | 2006 | 1 | |
| Manhattan Opera House | Manhattan Opera House | United States, New York, 311 West 34th St | 1920-09-06 | -- | 1920 | 1 | |
| Manhattan Theatre | Manhattan Theatre | United States, New York, 102 W. 33rd St | 1902-05-21 | 1902-05-30 | 1902–1905 | 6 | |
| Manhatten | Manhatten | United States, Manhatten | -- | -- | | | |
| Manhatten | Manhatten | United States, New York | 1989-01-24 | -- | 1989 | 1 | |
| Mankato | Mankato | United States, Mankato | 1903-11-09 | 1903-11-09 | 1903 | 1 | |
| Mannheim | Mannheim | Germany, Mannheim | -- | -- | | | |
| Manoir du Haut Busson | Manoir du Haut Busson | France, Évron, Manoir du Haut Busson | 2018-08-06 | -- | 2018 | 1 | |
| Mansfield | Mansfield | United States, Mansfield | 1903-10-23 | 1903-10-23 | 1903 | 1 | |
| Mansfield Theatre | Mansfield Theatre | United States, New York, 256 W 47th St | 1927-01-10 | -- | 1927 | 1 | |
| Mantziusgården | Mantziusgården | Denmark, Birkerød, Johan Mantzius Vej 7 | 2004-12-07 | -- | 2004 | 1 | |
| Manzanares | Manzanares | Spain, Manzanares | 2010-03-20 | -- | 2010 | 2 | |
| Manzoni, Teatro | Teatro Manzoni | Italy, Pistoia | 1974-10-26 | 2016-03-09 | 1974–2020 | 5 | |
| Mapol Motion Pictures Studios | Mapol Motion Pictures Studios | Argentina, Buenos Aires | 1954-01-27 | -- | 1954 | 1 | |
| Mărăşeşti | Mărăşeşti | Romania, Mărăşeşti | -- | -- | | | |
| Mărculeşti | Mărculeşti | Romania, Mărculeşti | -- | -- | | | |
| Margaret Greenham Theatre | Margaret Greenham Theatre | Canada, Banff, 107 Tunnel Mountain Drive | 2007-03-16 | 2007-03-17 | 2007 | 1 | |
| Margaret Theater | Margaret Theater | United States, Anaconda | 1904-02-25 | 1904-02-25 | 1904 | 1 | |
| Margaret Theatre | Margaret Theatre | United States, Anaconda | 1905-12-07 | 1905-12-07 | 1905 | 1 | |
| Margaretaparken | Margaretaparken | Sweden, Stockholm, Gamla Enskede | 2003-08-30 | 2003-09-19 | 2003 | 1 | |
| Margarethakirkens ruin, Maridalen | Margarethakirkens ruin, Maridalen | Norway, Oslo | 1985-08-17 | 1985-08-25 | 1985 | 1 | |
| Margetts Theatre | Margetts Theatre | United States, Provo, Franklin S. Harris Fine Arts Center | 2012-02-29 | 2012-03-10 | 2012 | 1 | |
| Mariehamn | Mariehamn | Finland, Åland Islands | 1999-10-09 | 1999-10-24 | 1999 | 1 | |
| Marienwerder | Marienwerder | Poland, Kwidzyn | 1878-- | -- | 1878 | 1 | |
| Mariestad | Mariestad | Sweden, Mariestad | 1936-10-08 | 1989-11-20 | 1936–1993 | 5 | |
| Mariinsky theatre | Mariinsky theatre | Russia, St. Petersburg, Teatralnaya ploshchad', 1 | 2005-06-22 | 2005-06-22 | 2005 | 1 | |
| Marikollen ungd.skole | Marikollen ungd.skole | Norway, Fjerdingby, Rælingen | 2001-11-06 | -- | 2001 | 1 | |
| Marine Theatre | Marine Theatre | England, Dorset, Church St, Lyme Regis | 2006-05-31 | -- | 2006–2007 | 2 | |
| Marion | Marion | United States, Marion | 1903-12-07 | 1903-12-07 | 1903 | 1 | |
| Marjorie Lyons Playhouse | Marjorie Lyons Playhouse | United States | 2019-10-02 | 2019-10-06 | 2019 | 1 | |
| Mark Hellinger Theatre | Mark Hellinger Theatre | United States, Manhattan, 237 West 51st Street | 1982-09-23 | -- | 1982 | 1 | |
| Marker Ungdomskole | Marker Ungdomskole | 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 | |
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