| Landestheater Detmold Sommertheater | Landestheater Detmold Sommertheater | Germany, Detmold, Theater Platz 1 | 2010-01-22 | 2010-03-27 | 2010 | 1 | |
| Lublin | Lublin | Poland, Lublin | 1908-09-15 | -- | 1908–1917 | 3 | |
| Liskeard School & Community College | Liskeard School & Community College | England, Liskeard, Luxstowe, | 2013-10-22 | 2013-10-23 | 2013 | 1 | |
| Länsteatern På Gotland | Länsteatern På Gotland | Sweden, Visby, Bredgatan 10 | 2019-10-04 | 2019-10-05 | 2019 | 1 | |
| Liverpool Playhouse | Liverpool Playhouse | England, Liverpool, Williamson Square | 1928-03-24 | 2006-04-15 | 1928–2006 | 4 | |
| London Theatre, The | The London Theatre | England, London, 443 New Cross Rd | 2014-01-21 | 2014-01-26 | 2014 | 1 | |
| Loge, La | La Loge | France, Paris, 77 Rue de Charonne | 2016-05-10 | 2016-05-13 | 2016 | 1 | |
| Lindesberg | Lindesberg | Sweden, Lindesberg | 1936-10-26 | -- | 1936–2002 | 3 | |
| Long Island Stage | Long Island Stage | United States, Long Island | 1990-02-27 | 1990-03-18 | 1990 | 1 | |
| Lewis Center for the Arts - Marie and Edward Matthews '53 Acting Studio | Lewis Center for the Arts - Marie and Edward Matthews '53 Acting Studio | United States, Princeton, 185 Nassau Street | 2008-02-08 | 2008-02-16 | 2008 | 1 | |
| Liegnitz | Liegnitz | Poland, Legnica | -- | -- | | | |
| Lyric Theatre Hammersmith | Lyric Theatre Hammersmith | England, Chiswick, London, Kings Street | 1953-09-08 | 2020-05-20 | 1953–2020 | 8 | |
| Landschaftliches Theater in Linz | Landschaftliches Theater in Linz | Austria, Linz | 1878-11-13 | 1913-12-03 | 1878–1920 | 29 | |
| Landestheater Württemberg-Hohenzollern Tübingen Reutlingen | Landestheater Württemberg-Hohenzollern Tübingen Reutlingen | Germany, Tübingen, Eberhardstr. 6 | 2012-04-14 | 2012-07-12 | 2012 | 1 | |
| Lakewood Civic Auditorium | Lakewood Civic Auditorium | United States, Cleveland, 14100 Franklin Boulevard | 1981-08-12 | -- | 1981 | 1 | |
| Lunde ungdomsskole | Lunde ungdomsskole | Norway, Skien, Lundegata 19 | 1997-09-11 | 2006-01-20 | 1997–2006 | 2 | |
| Landor Theatre | Landor Theatre | England, London, 70 Landor Rd, | 2000-04-19 | 2000-05-06 | 2000 | 1 | |
| Leningrad | Leningrad | Russia, Leningrad | 1967-06- | -- | 1967–1975 | 2 | |
| Langesund ungdomsskole | Langesund ungdomsskole | Norway, Langesund | 2004-10-28 | 2004-10-29 | 2004 | 1 | |
| Lawrence College Memorial Chapel | Lawrence College Memorial Chapel | United States, Appleton, 510 E College Ave | 1935-11-19 | -- | 1935 | 1 | |
| Liepājas Jaunajā Teātris | Liepājas Jaunajā Teātris | Latvia, Liepaja | 1920-03-28 | -- | 1920–1935 | 3 | |
| Linköping | Linköping | Sweden, Linköping | 1880-01-07 | 1880-01-19 | 1880–1936 | 3 | |
| Lycée de Thiaroye | Lycée de Thiaroye | Senegal, Thiaroye | 2021-05-08 | -- | 2021 | 1 | |
| Leipzig | Leipzig | Germany, Leipzig | -- | -- | | | |
| Lafayette | Lafayette | United States, Lafayette | 1903-10-16 | 1903-10-16 | 1903 | 1 | |
| Lilla Edet | Lilla Edet | Sweden, Lilla Edet | 1989-11-03 | 1989-11-03 | 1989 | 1 | |
| La Mama Theatre | La Mama Theatre | Australia, Carlton, 205 Faraday St | 2001-04-23 | 2013-09-29 | 2001–2013 | 2 | |
| Landestheater Schleswig | Landestheater Schleswig | Germany, Schleswig | 1954-02-28 | -- | 1954 | 1 | |
| Longacre Theatre | Longacre Theatre | United States, New York, 220 W 48th St | 1925-12-06 | -- | 1925–1942 | 3 | |
| Lyric Theatre | Lyric Theatre | Northern Ireland, Belfast, 55 Ridgeway Street | 1972-02-10 | 2003-10-11 | 1972–2003 | 7 | |
| Lost Theatre | Lost Theatre | England, London, Vauxhall, 208 Wandsworth Road | 2010-07-27 | 2010-11-11 | 2010 | 2 | |
| Landesbühne Rheinland-Pfalz | Landesbühne Rheinland-Pfalz | Germany, Neuwied 56564, Theaterplatz 3 | 1963-02-11 | -- | 1963–1980 | 2 | |
| Lena, Festiviteten | Festiviteten Lena (Festiviteten) | Norway, Lena | 1952-02-20 | -- | 1952–1961 | 5 | |
| Leuven | Leuven | Belgium, Leuven | 1997-12-04 | 1997-12-05 | 1997–2006 | 2 | |
| Loke Yew Hall | Loke Yew Hall | China, Hong Kong, Pok Fu Lam Rd | 1960-04-21 | 1960-04-23 | 1960 | 1 | |
| Lødingen, Samfunnshuset | Samfunnshuset Lødingen (Loedingen) | Norway, Lødingen, Lødingen | 2009-09-03 | -- | 2009 | 1 | |
| Lødingen | Lødingen skole (Loedingen) | Norway, Lødingen | 1968-09-10 | -- | 1968–1983 | 4 | |
| Laxmi Narayan Temple Complex | Laxmi Narayan Temple Complex | India, Mumbai, Marve Road | 2017-04-02 | 2017-04-02 | 2017 | 1 | |
| Litteraturhuset | Litteraturhuset | Norway, Oslo, Wergelandsveien 29 | 2023-04-14 | 2023-04-04 | 2023 | 1 | |
| Lloyd Theater, Fine Arts Building | Lloyd Theater, Fine Arts Building | United States, Lynchburg, 1971 University Blvd | 2009-03-20 | 2009-03-28 | 2009 | 1 | |
| Lugo, Teatro | Teatro Lugo | Italy, Lugo, Piazza Cavour, 17 | 2017-01-13 | 2017-01-15 | 2017 | 1 | |
| LAKtheater | LAKtheater (Leiden Academic Arts Centre/Leids Academisch Kunstcentrum) | Netherlands, Leiden, Cleveringaplaats 1 | 2000-04-11 | 2000-04-12 | 2000–2009 | 5 | |
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