| Long Island Stage | Long Island Stage | United States of America, Long Island | 1990-02-27 | 1990-03-18 | 1990 | 1 | |
| Laïko Theatro Pagkratiou | Laïko Theatro Pagkratiou (Popular Theatre of Pangrati) | Greece, Athens | 1930-07-17 | 1933-06-22 | 1930–1935 | 5 | |
| Landestheater Eisenach | Landestheater Eisenach | Germany, Eisenach, Theaterplatz 7 | 1992-02-16 | 2001-06-22 | 1992–2001 | 2 | |
| Little Fernwood Hall | Little Fernwood Hall | Canada, Victoria | 2010-06-08 | 2010-06-26 | 2010 | 1 | |
| Lawrence Batley Theatre | Lawrence Batley Theatre | England, Huddersfield, Queen St | 2005-05-04 | 2011-06-22 | 2005–2011 | 2 | |
| Latvijas Nacionālais teātris | Latvijas Nacionālais teātris | Latvia, Riga, Kronvalda bulvāris 2 | 1921-03-23 | 2011-03-14 | 1921–2010 | 17 | |
| LIttle Opera House | LIttle Opera House | United States of America, Boston, 80 Norway Street | 1959-10-20 | 1959-11-03 | 1959 | 1 | |
| Little Theatre | Little Theatre | United States of America, Cincinnati | 1913-- | 1913-- | 1913 | 1 | |
| Lier kommunale lokale | Lier kommunale lokale | Norway, Lier, Vestsideveien 2 | 1928-01-22 | -- | 1928 | 1 | |
| Landestheater Burghofbühne im Kreis Wesel | Landestheater Burghofbühne im Kreis Wesel | Germany, Dinslaken, Luisenstraße 173 | 1991-02-14 | -- | 1991–2016 | 2 | |
| Lavikdal | Lavikdal | Norway, Lavik | 1971-03-02 | -- | 1971 | 1 | |
| Lancaster Grand Theatre | Lancaster Grand Theatre | England, Lancaster, Saint Leonard's Gate, Town Centre | 2014-10-30 | 2014-10-30 | 2014 | 1 | |
| Lillesand | Lillesand | Norway, Lillesand | 1958-03-12 | -- | 1958–1995 | 3 | |
| Lafayette | Lafayette | United States of America, Lafayette | 1903-10-16 | 1903-10-16 | 1903 | 1 | |
| Langschede | Langschede | Germany, Langschede | -- | -- | | | |
| Lipeckij gosudarstvennyj akademiceskij teatr dramy imeni L.N | Lipeckij gosudarstvennyj akademiceskij teatr dramy imeni L.N | Russia, Lipeck | 1999-02-06 | -- | 1999 | 1 | |
| Liceo San José Lo Barnechea | Liceo San José Lo Barnechea | Chile, Santiago, Lo Barnechea | 2013-05- | -- | 2013 | 1 | |
| Lubuski Teatr im. Leona Kruczkowskiego | Lubuski Teatr im. Leona Kruczkowskiego | Poland, Zielona Góra, aleja Niepodległości 3/5 | 2006-06-10 | 2006-11-21 | 2006 | 1 | |
| Little Theatre | Little Theatre | Australia, Adelaide, The Cloisters, The University of Adelaide | 1984-09-12 | 1986-10-11 | 1984–1986 | 2 | |
| Lausanne | Lausanne | Switzerland, Lausanne | 1998-10-29 | -- | 1998 | 1 | |
| Load of Fun | Load of Fun | United States of America, Baltimore, 120 W North Ave | 2009-04-30 | 2009-05-24 | 2009 | 1 | |
| London | London | England, London | 1923-12-03 | -- | 1923–1985 | 3 | |
| Little Theatre | Little Theatre | United States of America, New York, 240 West 44th Street | 1934-05-01 | -- | 1934 | 1 | |
| Lenin Balavadi | Lenin Balavadi | India, Thiruvananthapuram | 2010-04-06 | -- | 2010 | 1 | |
| Leningradskoe televidenie | Leningradskoe televidenie (Leningrad Television) | Russia, Sankt Petersburg | 1968-- | -- | 1968 | 1 | |
| Landestheater Dinkelsbühl | Landestheater Dinkelsbühl | Germany, Dinkelsbühl, Dr.-Martin-Luther-Straße 10 | 1992-02-19 | -- | 1992 | 1 | |
| Leitor | Leitor | Spain, Leitor | 2010-12-04 | -- | 2010 | 1 | |
| Lakshmi Narayan Mandir | Lakshmi Narayan Mandir (Laxmi Narayan Temple Complex) | India, Mumbai, Marve Road | 2017-04-02 | 2017-04-02 | 2017 | 1 | |
| Larnaca | Larnaca | Cyprus, Larnaca | 1973-02-27 | 1974-05-31 | 1973–1974 | 2 | |
| Landdrostei Pinneberg (Gartenhaus) | Landdrostei Pinneberg (Gartenhaus) | Germany, Pinneberg | 2002-09-27 | 2002-09-29 | 2002 | 1 | |
| Lakselv | Lakselv | Norway, Lakselv | 1970-09-02 | -- | 1970–2009 | 4 | |
| Lower Denton Theatre | Lower Denton Theatre | Canada, Wolfville, 15 University Ave | 2018-03-22 | 2018-03-31 | 2018 | 1 | |
| Landesbühne Hannover | Landesbühne Hannover | Germany, Hannover, Bultstrasse 7 | 1961-10-07 | 2000-01-18 | 1961–1999 | 6 | |
| Lace Market Theatre, The | The Lace Market Theatre | England, Nottingham, Halifax Pl, | 2012-05-07 | 2012-05-23 | 2012 | 1 | |
| Lux Radio Theatre | Lux Radio Theatre | United States of America, Los Angelos, 1615 North Vine Street | 1938-06-06 | -- | 1938 | 1 | |
| Langelands Teater | Langelands Teater | Denmark, Langelands | 1909-11-01 | -- | 1909 | 2 | |
| Lake Pool Park | Lake Pool Park | United States of America, Cleveland | 2011-08-04 | -- | 2011 | 1 | |
| Little Boston Library - S´Klallam Tribal Center | Little Boston Library - S´Klallam Tribal Center | United States of America, Kingston, 31912 Little Boston Rd NE | 2006-11-16 | -- | 2006 | 1 | |
| Lycée Cheick Omar Tall Nafoore | Lycée Cheick Omar Tall Nafoore | Senegal, Dakar | 2021-05-06 | -- | 2021 | 1 | |
| Lion Arts Theatre | Lion Arts Theatre | Australia, Adelaide, North Terrace & Morphett Street | 1991-08-17 | 1992-03-09 | 1991–1992 | 2 | |
| Landshut | Landshut | Germany, Landshut | 1893-05-15 | -- | 1893–2000 | 2 | |
| Larrañaga | Larrañaga | Uruguay, Salto | 1973-08-04 | -- | 1973 | 1 | |
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