| Lion Arts Theatre | Lion Arts Theatre | Australia, Adelaide, North Terrace & Morphett Street | 1991-08-17 | 1992-03-09 | 1991–1992 | 2 | |
| Lødingen | Lødingen (Loedingen) | Norway, Lødingen | 1971-03-08 | -- | 1971 | 1 | |
| La Filature | La Filature | France, Mulhouse, 20 Allée Nathan Katz | 2005-02-25 | 2021-10-17 | 2005–2021 | 3 | |
| Langschede | Langschede | Germany, Langschede | -- | -- | | | |
| Lauriston Hall | Lauriston Hall | Scotland, Edinburgh, 28 Lauriston Street | 1924-07-25 | -- | 1924 | 1 | |
| Linbury Theatre | Linbury Theatre | England, London, Royal Opera House, Bow St | 2005-09-22 | 2006-06-10 | 2005–2006 | 2 | |
| Liége | Liége | Belgium, Liége | 1895-05-18 | -- | 1895 | 1 | |
| Linsly-Chittenden Hall at Yale University | Linsly-Chittenden Hall at Yale University | United States of America, New Haven, 55 Whitney Avenue, Suite 400 | 2012-11-12 | -- | 2012 | 1 | |
| La Salita de Perón | La Salita de Perón | Argentina, Nogoyá, Presidente Perón 648 | 2025-03-13 | -- | 2025 | 1 | |
| Litchfield Hills Theatre | Litchfield Hills Theatre | United States of America, Litchfield | 1939-08-15 | -- | 1939 | 1 | |
| Lewistown | Lewistown | United States of America, Lewistown | -- | -- | | | |
| Langesund barneskole | Langesund barneskole | Norway, Langesund, Langesund | 2006-10-27 | -- | 2006 | 1 | |
| Landestheater Oldenburg | Landestheater Oldenburg | Germany, Oldenburg | 1925-04-02 | -- | 1925–1934 | 2 | |
| Larvik kirke | Larvik kirke | Norway, Larvik | 2016-11-14 | -- | 2016 | 1 | |
| Le Sablier - Centre national de la marionnette | Le Sablier - Centre national de la marionnette | France, Ifs, Square de Niederwerrn | 2024-11-20 | 2024-11-21 | 2024 | 1 | |
| Landestheater Altenburg | Landestheater Altenburg | Germany, Altenburg, Theaterplatz 19 | 1919-10-05 | -- | 1919–1980 | 6 | |
| Little Theatre | Little Theatre | United States of America, Chicago | 1914-04-28 | 1914-04-28 | 1914 | 1 | |
| Library Theatre | Library Theatre | England, Manchester, Central Library, St Peter's Square | 1996-03-19 | 1996-03-23 | 1996 | 1 | |
| Leipzig, Centraltheater | Centraltheater Leipzig | Germany, Leipzig, Bosestraße 1 04109 Leipzig, Germany | 2008-09-12 | 2013-01-12 | 2008–2012 | 3 | |
| Logan Square Masonic Temple | Logan Square Masonic Temple | United States of America, Chicago, Cnr Randolph & State Streets | 1938-12-18 | -- | 1938 | 1 | |
| Lindhurst Theatre | Lindhurst Theatre | United States of America, Malibu, 24255 Pacific Coast Highway | 2018-01-23 | 2018-01-27 | 2018 | 1 | |
| Leningradskoe televidenie | Leningradskoe televidenie (Leningrad Television) | Russia, Sankt Petersburg | 1968-- | -- | 1968 | 1 | |
| Leanor and Alvin Segal Theatre, The | The Leanor and Alvin Segal Theatre | Canada, Montreal, 5170 Chemin de la Côte-Sainte-Catherine | 2006-02-05 | 2006-05-26 | 2006 | 1 | |
| Liberty Theater, the | The Liberty Theater | United States of America, Hailey, 110 N Main St | 2006-02-15 | 2025-02-22 | 2006–2025 | 2 | |
| Lewinston Opera House | Lewinston Opera House | United States of America, Lewinston | 1904-02-16 | 1904-02-16 | 1904 | 1 | |
| Lauertalhalle | Lauertalhalle | Germany, Maßbach, Neue Straße 30 | 2009-12-20 | -- | 2009 | 1 | |
| Lycée Cheick Omar Tall Nafoore | Lycée Cheick Omar Tall Nafoore | Senegal, Dakar | 2021-05-06 | -- | 2021 | 1 | |
| Länsteatern i Örebro | Länsteatern i Örebro | Sweden, Örebro, Storgatan 1 | 1969-10-29 | 2007-04-29 | 1969–2007 | 5 | |
| Lokstallen Otta | Lokstallen Otta | Norway, Otta | 2006-09-15 | 2006-09-17 | 2006 | 1 | |
| Liepājas Latviešu teātris | Liepājas Latviešu teātris | Latvia, Liepāja, Teātra 4 | 1907-11-04 | 1908-04-23 | 1907–1915 | 11 | |
| Local Council of Women’s House, The | The Local Council of Women’s House | Canada, Halifax, Nova Scotia | 2013-10-30 | 2013-11-10 | 2013 | 1 | |
| Little Theatre, Central Hall, Hillsdale College | Little Theatre, Central Hall, Hillsdale College | United States of America, Hillsdale, 33 E College St | 1933-12-19 | -- | 1933 | 1 | |
| Leighton House Museum | Leighton House Museum | England, London, 12 Holland Park Road, Holland Park, | 2014-04-01 | 2014-04-02 | 2014 | 1 | |
| Lókal | Lókal | Iceland, Reykjavík | 2010-09-04 | 2010-09-05 | 2010 | 1 | |
| Lyceum Theatre | Lyceum Theatre | United States of America, Atlanta | 1895-12-28 | 1895-12-28 | 1895 | 1 | |
| Laurie Theater ved Brandeis University | Laurie Theater ved Brandeis University | United States of America, Waltham | 1968-06-21 | 1968-06-22 | 1968 | 1 | |
| Little Theater | Little Theater | Tanzania, Dar Es Salaam, | 1979-04-01 | -- | 1979 | 1 | |
| La Galerie | La Galerie | France, Paris, Cité Internationale Universitaire | 1977-10-04 | 1977-11-19 | 1977 | 1 | |
| Länsteatern På Gotland | Länsteatern På Gotland | Sweden, Visby, Bredgatan 10 | 2019-10-04 | 2019-10-05 | 2019 | 1 | |
| Leipziger Stadttheater, Neues Theater | Leipziger Stadttheater, Neues Theater | Germany, Leipzig, Augustusplatz | 1889-10-10 | 1922-08-13 | 1889–1922 | 42 | |
| Lokremise | Lokremise | Switzerland, St. Gallen, Grünbergstrasse 7 | 2011-11-10 | 2015-05-05 | 2011–2015 | 2 | |
| Lorca | Lorca | Spain, Lorca | 1925-05-11 | -- | 1925 | 1 | |
|
|
