| Loyola Community Theater | Loyola Community Theater | United States, Chicago | 1949-03-05 | 1949-03-06 | 1949 | 1 | |
| Lublin | Lublin | Poland, Lublin | 1908-09-15 | -- | 1908–1917 | 3 | |
| Lokremise | Lokremise | Switzerland, St. Gallen, Grünbergstrasse 7 | 2011-11-10 | 2015-05-05 | 2011–2015 | 2 | |
| Landestheater Linz (Kammerspiele) | Landestheater Linz (Kammerspiele) | Austria, Linz, Promenade 39 | 1950-- | 2017-06-02 | 1950–2017 | 16 | |
| Lalmonirhat Zila Parishad Auditorium | Lalmonirhat Zila Parishad Auditorium | Bangladesh, Lalmonirhat | 2006-04-25 | 2006-04-26 | 2006 | 1 | |
| Lyric Theatre | Lyric Theatre | United States, Portland | 1908-07-07 | 1908-07-07 | 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 | |
| Lærdalsøyri ungdomsskole | Lærdalsøyri ungdomsskole | Norway, Lærdal, 6887 Lærdal, Norway | 1975-02-19 | -- | 1975–1978 | 2 | |
| Lübeck | Lübeck | Germany, Schleswig-Holstein | 1952-02-04 | -- | 1952 | 1 | |
| Leschi Trapezikon Ypallilon | Leschi Trapezikon Ypallilon | Greece, Thessaloniki | 1933-02-16 | -- | 1933 | 1 | |
| Latviešu strādnieku teātris | Latviešu strādnieku teātris | Ukraine, Kharkiv | 1917-09-20 | -- | 1917 | 1 | |
| Leipziger Stadttheater, Neues Theater | Leipziger Stadttheater, Neues Theater | Germany, Leipzig, Augustusplatz | 1889-10-10 | 1922-08-13 | 1889–1922 | 42 | |
| Landestheater Halle | Landestheater Halle | Germany, Halle | 1968-02-11 | -- | 1968 | 1 | |
| Länsmuseet Murberget | Länsmuseet Murberget | Sweden, Harnosand, Murbergsvägen 31 | 1999-10-08 | -- | 1999 | 1 | |
| Lievekamp | Schouwburg De Lievekamp (De Lievekamp) | Netherlands, Oss, Raadhuislaan 14 | 1975-03-10 | -- | 1975–2009 | 3 | |
| Leverkusen | Leverkusen | Germany, Leverkusen | 1977-09-20 | -- | 1977 | 1 | |
| Lunde ungdomsskole | Lunde ungdomsskole | Norway, Skien, Lundegata 19 | 1997-09-11 | 2006-01-20 | 1997–2006 | 2 | |
| Landestheater Parchim | Landestheater Parchim | Germany, Parchim, Blutstr. 16 | 1961-02-21 | -- | 1961–1989 | 2 | |
| Lisbon | Lisbon | Portugal, Lisbon | 1947-04-05 | 2002-03-23 | 1947–2006 | 4 | |
| Little Theatre Torquay | Little Theatre Torquay | England, Devon | 2008-06-03 | -- | 2008 | 1 | |
| Landestheater Detmold | Landestheater Detmold | Germany, Detmold, Theaterplatz 1 | 1961-03-29 | 2011-03-27 | 1961–2016 | 7 | |
| Los Angeles | Los Angeles | United States, Los Angeles | -- | -- | | | |
| London Central Y.M.C.A. | London Central Y.M.C.A. | England, London, 112 Great Russell St | 1927-11-15 | -- | 1927 | 1 | |
| Leipziger Stadttheater, Altes Theater | Leipziger Stadttheater, Altes Theater | Germany, Leipzig, Richard Wagnerplatz | 1889-10-23 | 1928-05-03 | 1889–1939 | 47 | |
| Leepa-Rattner Museum of Art | Leepa-Rattner Museum of Art | United States, Tarpon Springs, 600 Klosterman Road | 2004-02-12 | 2004-02-22 | 2004 | 1 | |
| Liepājas Tautas Teātris | Liepājas Tautas Teātris | Latvia, Liepaja, Rožu laukums 5/6 | 1908-04-15 | -- | 1908–1974 | 3 | |
| LPSR Akadēmiskais Raiņa Dailes teātris | Latvijas PSR Valsts Akadēmiskais Raiņa Dailes teātris | Latvia, Riga, Lāčplēša ielā 25 | 1964-03-07 | -- | 1964–1975 | 2 | |
| Los Angeles Actors' Theatre | Los Angeles Actors' Theatre | United States, Los Angeles | 1983-10-01 | -- | 1983 | 1 | |
| Langesund ungdomsskole | Langesund ungdomsskole | Norway, Langesund | 2004-10-28 | 2004-10-29 | 2004 | 1 | |
| Landestheater Niederösterreich | Landestheater Niederösterreich | Austria, St. Pölten, Rathauspl. 11 | 2011-10-15 | 2014-01-29 | 2011–2013 | 2 | |
| Lillehammer | Lillehammer | Norway, Lillehammer | 1902-06-19 | 2000-04-30 | 1902–2005 | 11 | |
| Lüneburger Bühne | Lüneburger Bühne | Germany, Lüneburg | 1929-09-25 | -- | 1929–1953 | 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 | |
| Luleå | Luleå | Sweden, Luleå | -- | -- | | | |
| Limelight Theatre | Limelight Theatre | United States, St. Augustine, 11 Old Mission Avenue | 2019-01-11 | 2019-02-03 | 2019 | 1 | |
| Leikanger | Leikanger | Norway, Leikanger | 1971-02-28 | -- | 1971 | 1 | |
| La Crosse State Teachers College | La Crosse State Teachers College | United States, La Crosse | 1935-11-23 | -- | 1935 | 1 | |
| L'Hippodrome, Salle André Malraux | L'Hippodrome, Salle André Malraux | France, Douai, 79 Place du barlet | 2011-01-21 | 2013-05-07 | 2011–2013 | 2 | |
| Le Parvis Scène Nationale Tarbes Pyrénées | Le Parvis Scène Nationale Tarbes Pyrénées | France, Ibos, 8 Zoning Industriel | 2005-03-22 | 2005-03-23 | 2005–2009 | 2 | |
| Leutkircher Theater | Leutkircher Theater | Germany, Leutkirch im Allgäu | 2011-03-19 | -- | 2011 | 1 | |
| Little Theatre, The | The Little Theatre | United States, New Haven, Lincoln Street | 1931-11-12 | 1975-03-02 | 1931–1975 | 2 | |
| Langschede | Langschede | Germany, Langschede | -- | -- | | | |
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