| Long Island Stage | Long Island Stage | United States of America, Long Island | 1990-02-27 | 1990-03-18 | 1990 | 1 | |
| LUX | LUX | Netherlands, Nijmegen, Mariënburg 38-39 | 2008-02-28 | 2008-03-22 | 2008 | 2 | |
| Leschi Trapezikon Ypallilon | Leschi Trapezikon Ypallilon | Greece, Thessaloniki | 1933-02-16 | -- | 1933 | 1 | |
| Lyric Theatre | Lyric Theatre | United States of America, New York, 213 West 42nd Street | 1904-04-15 | 1908-05-13 | 1904–1911 | 5 | |
| La Jonquière, Théâtre de | Théâtre de La Jonquière | France, Paris, 88 Rue de La Jonquière | 2015-09-16 | 2015-09-19 | 2015 | 1 | |
| Linenhall Arts Centre | Linenhall Arts Centre | Ireland, Castlebar, Linenhall St | 2011-05-19 | -- | 2011 | 1 | |
| Landestheater Dinkelsbühl | Landestheater Dinkelsbühl | Germany, Dinkelsbühl, Dr.-Martin-Luther-Straße 10 | 1992-02-19 | -- | 1992 | 1 | |
| Leipziger Theater - Kammerspiele | Leipziger Theater - Kammerspiele | Germany, Leipzig | 1951-05-18 | -- | 1951–1984 | 3 | |
| Le 140 | Le 140 | Belgium, Schaerbeek, Av. Eugène Plasky 140 | 2025-01-09 | -- | 2025 | 1 | |
| Leikfélag Akureyrar | Leikfélag Akureyrar | Iceland, Akureyri, Hafnarstræti 57 | 1993-10-15 | -- | 1993–1998 | 2 | |
| Landdrostei Pinneberg (Gartenhaus) | Landdrostei Pinneberg (Gartenhaus) | Germany, Pinneberg | 2002-09-27 | 2002-09-29 | 2002 | 1 | |
| La Coupole (Sénart) | La Coupole (Sénart) | France, Combs-la-Ville, 107 Rue Jean François Millet | 1999-03-12 | 2013-04-03 | 1999–2013 | 2 | |
| La Filature | La Filature | France, Mulhouse, 20 Allée Nathan Katz | 2005-02-25 | 2021-10-17 | 2005–2021 | 3 | |
| Linköping | Linköping | Sweden, Linköping | 1880-01-07 | 1880-01-19 | 1880–1936 | 3 | |
| Lillhärdal | Lillhärdal | Sweden, Lillhärdal | 1989-10-06 | 1989-10-06 | 1989 | 1 | |
| Latviešu strādnieku teātris | Latviešu strādnieku teātris | Ukraine, Kharkiv | 1917-09-20 | -- | 1917 | 1 | |
| Lomma | Lomma | Sweden, Lomma | 1989-11-27 | 1989-11-27 | 1989–1993 | 2 | |
| Lafayette | Lafayette | United States of America, Lafayette | 1903-10-16 | 1903-10-16 | 1903 | 1 | |
| Lyceum Theatre | Lyceum Theatre | United States of America, Scranton | 1911-12-27 | 1911-12-27 | 1911 | 1 | |
| Lievekamp | Schouwburg De Lievekamp (De Lievekamp) | Netherlands, Oss, Raadhuislaan 14 | 1975-03-10 | -- | 1975–2009 | 3 | |
| Leveld Teaterlag | Leveld Teaterlag | Norway, Ål, Branesvegen 4 | 1995-04-01 | -- | 1995 | 1 | |
| Lahden Kaupunginteatteri | Lahden Kaupunginteatteri | Finland, Lahti, Kirkkokatu 14 | 1954-09-30 | 2012-03-24 | 1954–2011 | 6 | |
| Lama teatro | Lama teatro | Portugal, Faro, Travessa Castilho 16 | 2022-07-28 | 2022-09-17 | 2022 | 1 | |
| Leipziger Schauspielhaus | Leipziger Schauspielhaus | Germany, Leipzig, Sophienstrasse 19 | 1909-01-13 | -- | 1909–1928 | 8 | |
| Lion Arts Theatre | Lion Arts Theatre | Australia, Adelaide, North Terrace & Morphett Street | 1991-08-17 | 1992-03-09 | 1991–1992 | 2 | |
| Leidse Schouwburg | Leidse Schouwburg | Netherlands, Leiden , Oude Vest 43 | 1989-03-03 | 1989-04-02 | 1989–2017 | 5 | |
| Lessingtheater | Lessingtheater | Germany, Berlin, Friedrich-Karl-Ufer 1 | 1888-11-25 | 1913-05-13 | 1888–1923 | 131 | |
| Lafage-sur-Sombre - Place de l'Oratoire | Lafage-sur-Sombre - Place de l'Oratoire | France | 2023-08-05 | 2023-07-21 | 2023 | 2 | |
| Lincoln Park | Lincoln Park | United States of America, Cleveland | 2011-08-05 | -- | 2011 | 1 | |
| Library Theatre | Library Theatre | England, Manchester, Central Library, St Peter's Square | 1996-03-19 | 1996-03-23 | 1996 | 1 | |
| Lom | Lom | Norway, Lom | 1990-10-15 | 2008-07-28 | 1990–2008 | 2 | |
| Lakshmi Narayan Mandir | Lakshmi Narayan Mandir (Laxmi Narayan Temple Complex) | India, Mumbai, Marve Road | 2017-04-02 | 2017-04-02 | 2017 | 1 | |
| Little Theatre, the | The Little Theatre | England, Hertford, Balfour St | 2005-11-10 | 2005-11-17 | 2005 | 1 | |
| London Central Y.M.C.A. | London Central Y.M.C.A. | England, London, 112 Great Russell St | 1927-11-15 | -- | 1927 | 1 | |
| Leganés | Leganés | Spain, Leganés | 2011-03-04 | -- | 2011 | 1 | |
| Lower Denton Theatre | Lower Denton Theatre | Canada, Wolfville, 15 University Ave | 2018-03-22 | 2018-03-31 | 2018 | 1 | |
| Lyceum Theatre | Lyceum Theatre | United States of America, Harrisburg | 1904-05-12 | 1908-03-28 | 1904–1907 | 2 | |
| LPSR Akadēmiskais Raiņa Dailes teātris | Latvijas PSR Valsts Akadēmiskais Raiņa Dailes teātris | Latvia, Riga, Lāčplēša ielā 25 | 1964-03-07 | -- | 1964–1975 | 2 | |
| Lincoln Hall Theatre | Lincoln Hall Theatre | United States of America, Urbana, University of Illinois at Urbana-Champaign | 1951-01-10 | 1967-07-01 | 1951–1967 | 3 | |
| Los Angeles Theatre | Los Angeles Theatre | United States of America, Los Angeles | 1908-04-04 | 1908-04-04 | 1908 | 1 | |
| Lyngby kulturhus | Lyngby kulturhus | Denmark, Kgs. Lyngby, Klampenborgvej 215 B | 2002-11-08 | -- | 2002–2006 | 3 | |
| Langesund barneskole | Langesund barneskole | Norway, Langesund, Langesund | 2006-10-27 | -- | 2006 | 1 | |
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