| Lion Arts Theatre | Lion Arts Theatre | Australia, Adelaide, North Terrace & Morphett Street | 1991-08-17 | 1992-03-09 | 1991–1992 | 2 | |
| Little Theatre, The | The Little Theatre | United States of America, New Haven, Lincoln Street | 1931-11-12 | 1975-03-02 | 1931–1975 | 2 | |
| Landestheater Sondershausen | Landestheater Sondershausen | Germany, Sondershausen | 1926-10-08 | -- | 1926–1946 | 2 | |
| Lidköping | Lidköping | Sweden, Lidköping | 1936-10-09 | -- | 1936–1993 | 2 | |
| Lounge Theatre , The | The Lounge Theatre | United States of America, Los Angeles, 6201 Santa Monica Blvd | 2013-02-10 | 2018-10-07 | 2013–2018 | 2 | |
| Lawrence Batley Theatre | Lawrence Batley Theatre | England, Huddersfield, Queen St | 2005-05-04 | 2011-06-22 | 2005–2011 | 2 | |
| Landshut | Landshut | Germany, Landshut | 1893-05-15 | -- | 1893–2000 | 2 | |
| Loft Theatre - Main House, The | The Loft Theatre - Main House | England, Leamington Spa, Victoria Terrace, Town Centre | 2007-10-17 | 2018-04-07 | 2007–2018 | 2 | |
| Luzerner Theater | Luzerner Theater | Switzerland, Lucerne, Theaterstrasse 2 | 2017-01-18 | 2023-06-02 | 2017–2023 | 2 | |
| Lom Samfunnshus | Lom Samfunnshus | Norway, Lom | 1973-10-01 | -- | 1973–1978 | 2 | |
| Lyngdal kulturhus | Lyngdal kulturhus | Norway, Lyngdal, Grøndokka 4 | 2015-09-18 | 2020-09-04 | 2015–2020 | 2 | |
| Luna, la | La Luna | France, Maubeuge, Avenue Jean Jaurès | 1996-03-22 | 1999-03-20 | 1996–1999 | 2 | |
| La Mama Theatre | La Mama Theatre | Australia, Carlton, 205 Faraday St | 2001-04-23 | 2013-09-29 | 2001–2013 | 2 | |
| Landestheater Eisenach | Landestheater Eisenach | Germany, Eisenach, Theaterplatz 7 | 1992-02-16 | 2001-06-22 | 1992–2001 | 2 | |
| Lunde ungdomsskole | Lunde ungdomsskole | Norway, Skien, Lundegata 19 | 1997-09-11 | 2006-01-20 | 1997–2006 | 2 | |
| Linbury Theatre | Linbury Theatre | England, London, Royal Opera House, Bow St | 2005-09-22 | 2006-06-10 | 2005–2006 | 2 | |
| La MaMa Experimental Theatre | La MaMa Experimental Theatre Club | United States of America, New York, 74 E 4th St | 1992-02-13 | 2002-02-03 | 1992–2002 | 2 | |
| Lost Theatre | Lost Theatre | England, London, Vauxhall, 208 Wandsworth Road | 2010-07-27 | 2010-11-11 | 2010 | 2 | |
| Little Theatre | Little Theatre | Australia, Adelaide, The Cloisters, The University of Adelaide | 1984-09-12 | 1986-10-11 | 1984–1986 | 2 | |
| Lyric Theatre | Lyric Theatre | United States of America, Jakcson | 1908-10-12 | 1908-10-12 | 1908 | 1 | |
| La Maison du Conte | La Maison du Conte | France, Chevilly-Larue, 8 Rue Albert Thuret | 1999-03-26 | 1999-03-28 | 1999 | 1 | |
| Liberty Theatre, the | The Liberty Theatre | United States of America, Hailey, 110 N Main St | 2006-02-15 | 2006-03-05 | 2006 | 1 | |
| Lenzburg | Lenzburg | Switzerland, Lenzburg | 1991-09-12 | -- | 1991 | 1 | |
| Lødingen | Lødingen (Loedingen) | Norway, Lødingen | 1971-03-08 | -- | 1971 | 1 | |
| Little Theatre | Little Theatre | United States of America, Chicago | 1914-04-28 | 1914-04-28 | 1914 | 1 | |
| La Jonquière, Théâtre de | Théâtre de La Jonquière | France, Paris, 88 Rue de La Jonquière | 2015-09-16 | 2015-09-19 | 2015 | 1 | |
| Lohjan Teatteri | Lohjan Teatteri | Finland, Lohja, Suurlohjankatu 12 | 1953-- | 1954-- | 1953 | 1 | |
| Lødingen, Samfunnshuset | Samfunnshuset Lødingen (Loedingen) | Norway, Lødingen, Lødingen | 2009-09-03 | -- | 2009 | 1 | |
| Lama teatro | Lama teatro | Portugal, Faro, Travessa Castilho 16 | 2022-07-28 | 2022-09-17 | 2022 | 1 | |
| London Theatre, The | The London Theatre | England, London, 443 New Cross Rd | 2014-01-21 | 2014-01-26 | 2014 | 1 | |
| Lindesborgs bygdegård | Lindesborgs bygdegård | Sweden, Malmköping, Lindersborgs bygdegård | 2019-09-29 | 2019-09-29 | 2019 | 1 | |
| Lokstallen Otta | Lokstallen Otta | Norway, Otta | 2006-09-15 | 2006-09-17 | 2006 | 1 | |
| Linz | Linz | Austria, Linz | 1946-04-16 | 1946-04-17 | 1946 | 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 of America, Princeton, 185 Nassau Street | 2008-02-08 | 2008-02-16 | 2008 | 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 | |
| Lókal | Lókal | Iceland, Reykjavík | 2010-09-04 | 2010-09-05 | 2010 | 1 | |
| Long Island Stage | Long Island Stage | United States of America, Long Island | 1990-02-27 | 1990-03-18 | 1990 | 1 | |
| Lilla Edet | Lilla Edet | Sweden, Lilla Edet | 1989-11-03 | 1989-11-03 | 1989 | 1 | |
| Ljusdal | Ljusdal | Sweden, Ljusdal | 1991-03-12 | 1991-03-12 | 1991 | 1 | |
| Lyric Theatre | Lyric Theatre | England, London, Shaftesbury Avenue | 1925-02-02 | -- | 1925 | 1 | |
| Landestheater Schleswig | Landestheater Schleswig | Germany, Schleswig | 1954-02-28 | -- | 1954 | 1 | |
| Little Theater | Little Theater | Tanzania, Dar Es Salaam, | 1979-04-01 | -- | 1979 | 1 | |
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