| Liepājas Teātris | Liepājas Teātris | Latvia, Liepaja | 1960-01-16 | -- | 1960–1997 | 4 | |
| Liepājas Latviešu teātris | Liepājas Latviešu teātris | Latvia, Liepāja, Teātra 4 | 1907-11-04 | 1908-04-23 | 1907–1915 | 11 | |
| Lunds Stadsteater | Lunds Stadsteater | Sweden, Lund, Kiliansgatan 13 | 1978-11-30 | 2000-11-11 | 1978–2010 | 3 | |
| Landestheater Eisenach | Landestheater Eisenach | Germany, Eisenach, Theaterplatz 7 | 1992-02-16 | 2001-06-22 | 1992–2001 | 2 | |
| LAKtheater | LAKtheater (Leiden Academic Arts Centre/Leids Academisch Kunstcentrum) | Netherlands, Leiden, Cleveringaplaats 1 | 2000-04-11 | 2000-04-12 | 2000–2009 | 5 | |
| Landesbühne Rhein-Main | Landesbühne Rhein-Main | Germany, Frankfurt am Main | 1957-01-16 | -- | 1957 | 1 | |
| Latvijas Nacionālais teātris | Latvijas Nacionālais teātris | Latvia, Riga, Kronvalda bulvāris 2 | 1921-03-23 | 2011-03-14 | 1921–2010 | 17 | |
| Loge, La | La Loge | France, Paris, 77 Rue de Charonne | 2016-05-10 | 2016-05-13 | 2016 | 1 | |
| Lietuvos nacionalinis dramos teatras | Lietuvos nacionalinis dramos teatras | Lithuania, Vilnius, Gedimino pr. 4 | 2009-03-07 | 2011-01-16 | 2009–2011 | 4 | |
| Laird Opera House | Laird Opera House | United States, Greenville | 1907-09-07 | 1907-09-07 | 1907 | 1 | |
| Lučenec | Lučenec | Slovak Republic, Lučenec | 1912-10-08 | 1912-11-22 | 1912–1939 | 4 | |
| Lloyd's Opera House | Lloyd's Opera House | United States, North Platte | 1908-06-11 | 1908-06-11 | 1908 | 1 | |
| Latviešu teātris | Latviešu teātris | Latvia, ?, ? | 1918-03-13 | -- | 1918 | 1 | |
| Leipziger Stadttheater, Neues Theater | Leipziger Stadttheater, Neues Theater | Germany, Leipzig, Augustusplatz | 1889-10-10 | 1922-08-13 | 1889–1922 | 42 | |
| Lancaster Grand Theatre | Lancaster Grand Theatre | England, Lancaster, Saint Leonard's Gate, Town Centre | 2014-10-30 | 2014-10-30 | 2014 | 1 | |
| Limfjord, Kulturcenter | Kulturcenter Limfjord | Denmark, Skive, Skyttevej 12 | 2018-09-24 | -- | 2018 | 1 | |
| Ljubljana | Ljubljana | Slovenia, Ljubljana | -- | -- | | | |
| Lillesand ungdomsskole | Lillesand ungdomsskole | Norway, Lillesand | 1997-09-22 | -- | 1997 | 1 | |
| Landestheater Linz (Arena Schauspielhaus) | Landestheater Linz (Arena Schauspielhaus) | Austria, Linz, Promenade 39 | 2015-03-27 | -- | 2015 | 1 | |
| Lipeckij gosudarstvennyj akademiceskij teatr dramy imeni L.N | Lipeckij gosudarstvennyj akademiceskij teatr dramy imeni L.N | Russia, Lipeck | 1999-02-06 | -- | 1999 | 1 | |
| Lanxin Theater | Lanxin Theater | China, Shanghai, 57 Maoming S Rd, Huangpu District | 2006-06-23 | 2006-06-25 | 2006 | 1 | |
| Lyceum Theatre | Lyceum Theatre | England, Sheffield, 55 Norfolk Street | 1903-06-15 | 1910-06-02 | 1903–1913 | 9 | |
| Little Theatre | Little Theatre | Australia, Adelaide, The Cloisters, The University of Adelaide | 1984-09-12 | 1986-10-11 | 1984–1986 | 2 | |
| Lycée de Thiaroye | Lycée de Thiaroye | Senegal, Thiaroye | 2021-05-08 | -- | 2021 | 1 | |
| Landestheater Burghofbühne im Kreis Wesel | Landestheater Burghofbühne im Kreis Wesel | Germany, Dinslaken, Luisenstraße 173 | 1991-02-14 | -- | 1991–2016 | 2 | |
| LIPA - Sennheiser Studio Theatre | LIPA - Sennheiser Studio Theatre | England, Liverpool, Pilgrim st / Mount st | 2009-05-14 | 2009-05-14 | 2009 | 1 | |
| Lindenhalle Wolfenbüttel | Lindenhalle Wolfenbüttel | Germany, Wolfenbüttel, Halberstädter Str. 1A | 2007-02-20 | -- | 2007 | 1 | |
| London | London | England, London | 1923-12-03 | -- | 1923–1985 | 3 | |
| Litteraturhuset | Litteraturhuset | Norway, Oslo, Wergelandsveien 29 | 2023-04-14 | 2023-04-04 | 2023 | 1 | |
| Landestheater Dinkelsbühl | Landestheater Dinkelsbühl | Germany, Dinkelsbühl, Dr.-Martin-Luther-Straße 10 | 1992-02-19 | -- | 1992 | 1 | |
| Linköping Teater | Linköping Teater | Sweden, Linköping | 1876-05-12 | 1876-05-14 | 1876–1880 | 3 | |
| Lier kommunale lokale | Lier kommunale lokale | Norway, Lier, Vestsideveien 2 | 1928-01-22 | -- | 1928 | 1 | |
| Leipziger Stadttheater, Altes Theater | Leipziger Stadttheater, Altes Theater | Germany, Leipzig, Richard Wagnerplatz | 1889-10-23 | 1928-05-03 | 1889–1939 | 47 | |
| Landdrostei Pinneberg (Gartenhaus) | Landdrostei Pinneberg (Gartenhaus) | Germany, Pinneberg | 2002-09-27 | 2002-09-29 | 2002 | 1 | |
| Linköpings Stadsteater | Linköpings Stadsteater | Sweden, Linköping | 1979-08-23 | -- | 1979 | 1 | |
| Lista ungdomsskole | Lista ungdomsskole | Norway, Vanse, Farsund | 2006-11-14 | -- | 2006 | 1 | |
| Little Theatre, Muskingum College | Little Theatre, Muskingum College | United States, New Concord, 163 Stormont St | 1963-12-11 | 1963-12-14 | 1963 | 1 | |
| Landesbühne Hannover | Landesbühne Hannover | Germany, Hannover, Bultstrasse 7 | 1961-10-07 | 2000-01-18 | 1961–1999 | 6 | |
| Loessin Playhouse | Loessin Playhouse | United States, Greenville, E 5th St, East Carolina University | 2006-11-16 | 2006-11-21 | 2006 | 1 | |
| La Crosse State Teachers College | La Crosse State Teachers College | United States, La Crosse | 1935-11-23 | -- | 1935 | 1 | |
| LAVA de Valladolid | LAVA de Valladolid | Spain, Valladolid, Paseo de Zorrilla, 101 | 2016-03-05 | -- | 2016 | 1 | |
| Langelands Teater | Langelands Teater | Denmark, Langelands | 1909-11-01 | -- | 1909 | 2 | |
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