| Lavikdal | Lavikdal | Norway, Lavik | 1971-03-02 | -- | 1971 | 1 | |
| lieu unique - scène nationale de Nantes, Le | Le lieu unique - scène nationale de Nantes | France, Nantes, 2 Quai Ferdinand Favre | 2013-05-15 | 2013-05-17 | 2013 | 1 | |
| Le Parvis Scène Nationale Tarbes Pyrénées | Le Parvis Scène Nationale Tarbes Pyrénées | France, Ibos, 8 Zoning Industriel | 2005-03-22 | 2015-04-01 | 2005–2018 | 5 | |
| Little Theatre, The | The Little Theatre | United States of America, New Haven, Lincoln Street | 1931-11-12 | 1975-03-02 | 1931–1975 | 2 | |
| Loutkové divadlo Radost | Loutkové divadlo Radost | Czech Republic, Brno | 1985-04-26 | -- | 1985 | 1 | |
| Living Room Theatre | Living Room Theatre | United States of America, North Bennington, 1 Park St, VT 05257 | 2021-07-08 | 2021-07-24 | 2021 | 1 | |
| 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 | |
| Lidköping | Lidköping | Sweden, Lidköping | 1936-10-09 | -- | 1936–1993 | 2 | |
| Løgstør | Løgstør | Denmark, Løgstør | 1907-11-04 | -- | 1907 | 1 | |
| Lipovăţ | Lipovăţ | Romania, Lipovăţ | -- | -- | | | |
| Luella Theatre | Luella Theatre | United States of America, Chillicothe | 1908-02-04 | 1908-02-04 | 1908 | 1 | |
| Luleå | Luleå | Sweden, Luleå | -- | -- | | | |
| Lugoj | Lugoj | Romania, Lugoj | 1892-03-21 | -- | 1892–1907 | 2 | |
| Larnaca | Larnaca | Cyprus, Larnaca | 1973-02-27 | 1974-05-31 | 1973–1974 | 2 | |
| Ludgo-Spelviks Bygdegård | Ludgo-Spelviks Bygdegård | Sweden, Nyköping, Ludgo-Spelviks Bygdegård | 2019-10-13 | 2019-10-13 | 2019 | 1 | |
| Landestheater Sondershausen | Landestheater Sondershausen | Germany, Sondershausen | 1926-10-08 | -- | 1926–1946 | 2 | |
| Litchfield Hills Theatre | Litchfield Hills Theatre | United States of America, Litchfield | 1939-08-15 | -- | 1939 | 1 | |
| Lund | Lund | Sweden, Lund | 1872-02-27 | -- | 1872–1936 | 3 | |
| Loeb Playhouse, Purdue University | Loeb Playhouse, Purdue University | United States of America, West Lafayette, 175 S University St | 2010-02-25 | -- | 2010 | 1 | |
| Linbury Theatre | Linbury Theatre | England, London, Royal Opera House, Bow St | 2005-09-22 | 2006-06-10 | 2005–2006 | 2 | |
| Logansport | Logansport | United States of America, Logansport | 1903-12-08 | 1903-12-08 | 1903 | 1 | |
| Liskeard School & Community College | Liskeard School & Community College | England, Liskeard, Luxstowe, | 2013-10-22 | 2013-10-23 | 2013 | 1 | |
| Lewistown | Lewistown | United States of America, Lewistown | -- | -- | | | |
| Liberty Theatre, the | The Liberty Theatre | United States of America, Hailey, 110 N Main St | 2006-02-15 | 2006-03-05 | 2006 | 1 | |
| Lyric Theatre | Lyric Theatre | United States of America, Portland | 1908-07-07 | 1908-07-07 | 1908 | 1 | |
| Landor Theatre | Landor Theatre | England, London, 70 Landor Rd, | 2000-04-19 | 2000-05-06 | 2000 | 1 | |
| Little Theatre | Little Theatre | United States of America, Chicago | 1914-04-28 | 1914-04-28 | 1914 | 1 | |
| Lučenec | Lučenec | Slovak Republic, Lučenec | 1912-10-08 | 1912-11-22 | 1912–1939 | 4 | |
| 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 | |
| Laxå | Laxå | Sweden, Laxå | 1992-10- | -- | 1992 | 1 | |
| L'Espal | L'Espal | France, Le Mans, 60 Rue de l'Estérel | 2013-12-03 | 2014-02-26 | 2013–2014 | 2 | |
| Lillesand | Lillesand | Norway, Lillesand | 1958-03-12 | -- | 1958–1995 | 3 | |
| Landestheater Altenburg | Landestheater Altenburg | Germany, Altenburg, Theaterplatz 19 | 1919-10-05 | -- | 1919–1980 | 6 | |
| Laird Opera House | Laird Opera House | United States of America, Greenville | 1907-09-07 | 1907-09-07 | 1907 | 1 | |
| Landestheater Württemberg-Hohenzollern Tübingen Reutlingen | Landestheater Württemberg-Hohenzollern Tübingen Reutlingen | Germany, Tübingen, Eberhardstr. 6 | 2012-04-14 | 2012-07-12 | 2012 | 1 | |
| Little Theatre, Central Hall, Hillsdale College | Little Theatre, Central Hall, Hillsdale College | United States of America, Hillsdale, 33 E College St | 1933-12-19 | -- | 1933 | 1 | |
| Lindenhalle Wolfenbüttel | Lindenhalle Wolfenbüttel | Germany, Wolfenbüttel, Halberstädter Str. 1A | 2007-02-20 | -- | 2007 | 1 | |
| Landesbühne Rheinland-Pfalz | Landesbühne Rheinland-Pfalz | Germany, Neuwied 56564, Theaterplatz 3 | 1963-02-11 | -- | 1963–1980 | 2 | |
| Lokstallen Otta | Lokstallen Otta | Norway, Otta | 2006-09-15 | 2006-09-17 | 2006 | 1 | |
| Limelight Theatre | Limelight Theatre | United States of America, St. Augustine, 11 Old Mission Avenue | 2019-01-11 | 2019-02-03 | 2019 | 1 | |
| Lawrence College Memorial Chapel | Lawrence College Memorial Chapel | United States of America, Appleton, 510 E College Ave | 1935-11-19 | -- | 1935 | 1 | |
| Landestheater Burghofbühne im Kreis Wesel | Landestheater Burghofbühne im Kreis Wesel | Germany, Dinslaken, Luisenstraße 173 | 1991-02-14 | -- | 1991–2016 | 2 | |
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