| Loeb Drama Center | Loeb Drama Center | United States, Cambridge, 64 Brattle Street | 1961-03-23 | 2005-08-20 | 1961–2005 | 9 | |
| Lublin | Lublin | Poland, Lublin | 1908-09-15 | -- | 1908–1917 | 3 | |
| Lenfest Center for the Arts | Lenfest Center for the Arts | United States, New York, 615 West 129th Street | 2021-10-21 | 2021-10-24 | 2021 | 1 | |
| Lappeenrannan Kaupunginteatteri | Lappeenrannan Kaupunginteatteri | Finland, Lappeenranta, 56, Valtakatu | 1926-- | 2006-05-10 | 1926–2006 | 4 | |
| Lower Glasshouse Theatre | Lower Glasshouse Theatre | England, Stourbridge, Wollaston Rd | 2005-06-17 | 2005-07-24 | 2005 | 1 | |
| Landesbühne Niedersachsen Nord | Landesbühne Niedersachsen Nord | Germany, Wilhelmshaven, Virchowstraße 44 | 1972-11-18 | -- | 1972–1975 | 2 | |
| Lafayette Square Opera House | Lafayette Square Opera House | United States, Washington D.C., 717 Madison Place | 1900-11-30 | 1900-11-30 | 1900 | 1 | |
| Little Theater | Little Theater | United States, Lexington, Transylvania University, W. 4th Street | 2001-11-01 | 2001-11-10 | 2001 | 1 | |
| Levanger | Levanger | Norway, Levanger | 1966-05-06 | -- | 1966–2002 | 2 | |
| Landskrona | Landskrona | Sweden, Landskrona | 1936-10-19 | -- | 1936 | 1 | |
| Landestheater Tübingen | Landestheater Tübingen | Germany, Tübingen, Eberhardstraße 6 | 2008-10-10 | 2016-08-26 | 2008–2015 | 3 | |
| Library Theatre | Library Theatre | England, Manchester, Central Library, St Peter's Square | 1996-03-19 | 1996-03-23 | 1996 | 1 | |
| Law Center for the Arts, West Virginia Wesleyan | Law Center for the Arts, West Virginia Wesleyan | United States, Buckhannon, 59 College Avenue | 2009-11-11 | -- | 2009 | 1 | |
| La Crosse | La Crosse | United States, La Crosse | 1903-11-10 | 1903-11-10 | 1903 | 1 | |
| Litlabø | Litlabø | Norway, Stord | 1958-03-03 | -- | 1958 | 1 | |
| Laerdal | Lærdal (Laerdal) | Norway, Lærdal | 1970-01-31 | -- | 1970–1975 | 3 | |
| Landschaftliches Theater in Linz | Landschaftliches Theater in Linz | Austria, Linz | 1878-11-13 | 1913-12-03 | 1878–1920 | 29 | |
| Landestheater Neustrelitz | Landestheater Neustrelitz | Germany, Neustrelitz, Friedrich-Ludwig-Jahn-Straße 14 | 1922-09-29 | 2014-04-03 | 1922–2013 | 4 | |
| Lunde ungdomsskole | Lunde ungdomsskole | Norway, Skien, Lundegata 19 | 1997-09-11 | 2006-01-20 | 1997–2006 | 2 | |
| Luna Playhouse | Luna Playhouse | United States, Glendale, 3706 San Fernando Road | 2007-12-07 | 2008-01-20 | 2007 | 1 | |
| Loutkové divadlo Radost | Loutkové divadlo Radost | Czech Republic, Brno | 1985-04-26 | -- | 1985 | 1 | |
| Langesund ungdomsskole | Langesund ungdomsskole | Norway, Langesund | 2004-10-28 | 2004-10-29 | 2004 | 1 | |
| LG Arts Center | LG Arts Center | South Korea, Seoul, Gangnam-gu, Yeoksam-dong | 2005-03-24 | 2015-05-28 | 2005–2016 | 5 | |
| Lumbrales | Lumbrales | Spain, Lumbrales | 2006-08-13 | -- | 2006 | 1 | |
| Luzerner Theater | Luzerner Theater | Switzerland, Lucerne, Theaterstrasse 2 | 2017-01-18 | 2017-02-12 | 2017 | 1 | |
| Landestheater Laibach | Landestheater Laibach | Slovenia, Ljubljana | 1893-12-01 | -- | 1893–1908 | 2 | |
| Leighton House Museum | Leighton House Museum | England, London, 12 Holland Park Road, Holland Park, | 2014-04-01 | 2014-04-02 | 2014 | 1 | |
| LOFFT | LOFFT | Germany, Leipzig, Lindenauer Markt 21 | 2012-03-22 | -- | 2012 | 1 | |
| Lower Denton Theatre | Lower Denton Theatre | Canada, Wolfville, 15 University Ave | 2018-03-22 | 2018-03-31 | 2018 | 1 | |
| Lyriko Theatro | Lyriko Theatro | Greece, Patra | 1933-06-21 | -- | 1933–1949 | 3 | |
| Lakewood Little Theatre | Lakewood Little Theatre | United States, Denver, 1980 Youngfield St | 1973-02-14 | 1973-03-11 | 1973 | 1 | |
| Lost Theatre | Lost Theatre | England, London, Vauxhall, 208 Wandsworth Road | 2010-07-27 | 2010-11-11 | 2010 | 2 | |
| Le Théâtre | Le Théâtre | France, Auxerre, 54 Rue Joubert | 1999-03-27 | -- | 1999 | 1 | |
| London School of Economics Dramatic Society | London School of Economics Dramatic Society | England, London, Houghton St | 1928-03-23 | -- | 1928 | 1 | |
| Leuven | Leuven | Belgium, Leuven | 1997-12-04 | 1997-12-05 | 1997–2006 | 2 | |
| Ludgo-Spelviks Bygdegård | Ludgo-Spelviks Bygdegård | Sweden, Nyköping, Ludgo-Spelviks Bygdegård | 2019-10-13 | 2019-10-13 | 2019 | 1 | |
| Lødingen, Samfunnshuset | Samfunnshuset Lødingen (Loedingen) | Norway, Lødingen, Lødingen | 2009-09-03 | -- | 2009 | 1 | |
| Landestheater Linz (Kammerspiele) | Landestheater Linz (Kammerspiele) | Austria, Linz, Promenade 39 | 1950-- | 2017-06-02 | 1950–2017 | 16 | |
| LUX | LUX | Netherlands, Nijmegen, Mariënburg 38-39 | 2008-02-28 | 2008-03-22 | 2008 | 2 | |
| Lees Main Stage, University of Utah | Lees Main Stage, University of Utah | United States, Salt Lake City, 201 Presidents Cir | 1991-03-20 | 1991-04-06 | 1991 | 1 | |
| Lom Samfunnshus | Lom Samfunnshus | Norway, Lom | 1973-10-01 | -- | 1973–1978 | 2 | |
| Laurie Theater ved Brandeis University | Laurie Theater ved Brandeis University | United States, Waltham | 1968-06-21 | 1968-06-22 | 1968 | 1 | |
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