| Lohjan Teatteri | Lohjan Teatteri | Finland, Lohja, Suurlohjankatu 12 | 1953-- | 1954-- | 1953 | 1 | |
| Lókal | Lókal | Iceland, Reykjavík | 2010-09-04 | 2010-09-05 | 2010 | 1 | |
| Loke Yew Hall | Loke Yew Hall | Hong Kong, Hong Kong, Pok Fu Lam Rd | 1960-04-21 | 1960-04-23 | 1960 | 1 | |
| Lokremise | Lokremise | Switzerland, St. Gallen, Grünbergstrasse 7 | 2011-11-10 | 2015-05-05 | 2011–2015 | 2 | |
| Lokstallen Otta | Lokstallen Otta | Norway, Otta | 2006-09-15 | 2006-09-17 | 2006 | 1 | |
| Lola Montez-Saal | Lola Montez-Saal | Germany, Bad Brückenau, Heinrich-von-Bibra-Straße 25 | 2004-03-11 | -- | 2004–2011 | 2 | |
| Lom | Lom | Norway, Lom | 1990-10-15 | 2008-07-28 | 1990–2008 | 2 | |
| Lom Samfunnshus | Lom Samfunnshus | Norway, Lom | 1973-10-01 | -- | 1973–1978 | 2 | |
| Lomma | Lomma | Sweden, Lomma | 1989-11-27 | 1989-11-27 | 1989–1993 | 2 | |
| London | London | England, London | 1923-12-03 | -- | 1923–1985 | 3 | |
| London Central Y.M.C.A. | London Central Y.M.C.A. | England, London, 112 Great Russell St | 1927-11-15 | -- | 1927 | 1 | |
| London School of Economics Dramatic Society | London School of Economics Dramatic Society | England, London, Houghton St | 1928-03-23 | -- | 1928 | 1 | |
| London Theatre, The | The London Theatre | England, London, 443 New Cross Rd | 2014-01-21 | 2014-01-26 | 2014 | 1 | |
| Long Island | Long Island | United States of America, Freeport | 1928-04-14 | -- | 1928 | 1 | |
| Long Island Stage | Long Island Stage | United States of America, Long Island | 1990-02-27 | 1990-03-18 | 1990 | 1 | |
| Longacre Theatre | Longacre Theatre | United States of America, New York, 220 W 48th St | 1925-12-06 | -- | 1925–1942 | 3 | |
| Longacre Theatre (Little Studio) | Longacre Theatre (Little Studio) | United States of America, New York, 220 W 48th St | 1911-01-08 | 1915-04-22 | 1911–1919 | 3 | |
| Lonnie Burten Baseball Field | Lonnie Burten Baseball Field | United States of America, Cleveland | 2011-08-02 | -- | 2011 | 1 | |
| Lorca | Lorca | Spain, Lorca | 1925-05-11 | -- | 1925 | 1 | |
| Lore Bronner-Bühne | Lore Bronner-Bühne | Germany, Munich | 1955-11-04 | -- | 1955 | 1 | |
| Lorensbergsteatern | Lorensbergsteatern | Sweden, Gothenburg, Berzeliigatan 4 | 1917-03-09 | -- | 1917–1928 | 9 | |
| Lorna Byrne School | Lorna Byrne School | United States of America, Cave Junction, 102 S Junction Ave | 2005-12-03 | -- | 2005 | 1 | |
| Los Angeles | Los Angeles | United States of America, Los Angeles | -- | -- | | | |
| Los Angeles Actors' Theatre | Los Angeles Actors' Theatre | United States of America, Los Angeles | 1983-10-01 | -- | 1983 | 1 | |
| Los Angeles Theatre | Los Angeles Theatre | United States of America, Los Angeles | 1908-04-04 | 1908-04-04 | 1908 | 1 | |
| Los Angeles Theatre Company/ ANTA-WEST | Los Angeles Theatre Company/ ANTA-WEST | United States of America, Los Angeles | -- | -- | | | |
| Los Teatros de San Telmo | Los Teatros de San Telmo | Argentina, Buenos Aires, Cochabamba 360 | 1976-08-20 | -- | 1976 | 1 | |
| Losheim am See | Losheim am See | Germany, Losheim am See | -- | -- | | | |
| Lost Theatre | Lost Theatre | England, London, Vauxhall, 208 Wandsworth Road | 2010-07-27 | 2010-11-11 | 2010 | 2 | |
| Loughborough Town Hall Theatre | Loughborough Town Hall Theatre | England, Loughborough, Leicestershire, Market Place | 2014-10-21 | 2014-10-21 | 2014 | 1 | |
| 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 | |
| Loutkové divadlo Radost | Loutkové divadlo Radost | Czech Republic, Brno | 1985-04-26 | -- | 1985 | 1 | |
| Lower Denton Theatre | Lower Denton Theatre | Canada, Wolfville, 15 University Ave | 2018-03-22 | 2018-03-31 | 2018 | 1 | |
| Lower Glasshouse Theatre | Lower Glasshouse Theatre | England, Stourbridge, Wollaston Rd | 2005-06-17 | 2005-07-24 | 2005 | 1 | |
| Lowry Centre | Lowry Centre | England, Salford Quays, Pier 8 | 2000-10-24 | 2019-10-19 | 2000–2019 | 6 | |
| Loyola Community Theater | Loyola Community Theater | United States of America, Chicago | 1949-03-05 | 1949-03-06 | 1949 | 1 | |
| LPSR Akadēmiskais Raiņa Dailes teātris | Latvijas PSR Valsts Akadēmiskais Raiņa Dailes teātris | Latvia, Riga, Lāčplēša ielā 25 | 1964-03-07 | -- | 1964–1975 | 2 | |
| Lublin | Lublin | Poland, Lublin | 1908-09-15 | -- | 1908–1917 | 3 | |
| 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 | |
| Lučenec | Lučenec | Slovak Republic, Lučenec | 1912-10-08 | 1912-11-22 | 1912–1939 | 4 | |
| Lucernaire, Théâtre du | Théâtre du Lucernaire | France, Paris, 53 rue Notre Dame des Champs | 2016-12-07 | 2017-03-12 | 2016 | 1 | |
| Ludgo-Spelviks Bygdegård | Ludgo-Spelviks Bygdegård | Sweden, Nyköping, Ludgo-Spelviks Bygdegård | 2019-10-13 | 2019-10-13 | 2019 | 1 | |
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