| Lessingtheater Wolfenbüttel | Lessingtheater Wolfenbüttel | Germany, Wolfenbüttel, Harztorwall 16 | 1943-09-04 | 1997-10-09 | 1943–1997 | 3 | |
| Landestheater Linz (Großes Haus) | Landestheater Linz (Großes Haus) | Austria, Linz | 1973-03-08 | -- | 1973 | 1 | |
| Lyric Theatre Hammersmith | Lyric Theatre Hammersmith | England, Chiswick, London, Kings Street | 1953-09-08 | 2020-05-20 | 1953–2020 | 8 | |
| Lace Market Theatre, The | The Lace Market Theatre | England, Nottingham, Halifax Pl, | 2012-05-07 | 2012-05-23 | 2012 | 1 | |
| Lunde 10-årige skole | Lunde 10-årige skole | Norway, Lunde, Nome | 2004-09-09 | -- | 2004–2006 | 2 | |
| Limassol | Limassol | Cyprus, Limassol | 1897-12-20 | 1974-05-16 | 1897–1974 | 3 | |
| L'avant-scène théâtre | L'avant-scène théâtre | France, Paris, 75 rue des Saints-Pères | 2018-02-16 | -- | 2018 | 1 | |
| Lyric Theatre | Lyric Theatre | Northern Ireland, Belfast, 55 Ridgeway Street | 1972-02-10 | 2003-10-11 | 1972–2003 | 7 | |
| Lake Pool Park | Lake Pool Park | United States, Cleveland | 2011-08-04 | -- | 2011 | 1 | |
| Lunde barneskole | Lunde barneskole | Norway, Skien, Skien | 2006-11-20 | -- | 2006 | 1 | |
| Leningrad | Leningrad | Russia, Leningrad | 1967-06- | -- | 1967–1975 | 2 | |
| Little Theatre | Little Theatre | Ireland, Dublin, R127, Townparks, Skerries | 1912-05-17 | 1913-12-09 | 1912–1913 | 3 | |
| Landestheater Schneidemühl | Landestheater Schneidemühl | Poland, Schneidemühl / Piła | 1927-01-18 | -- | 1927–1938 | 3 | |
| Leighton House Museum | Leighton House Museum | England, London, 12 Holland Park Road, Holland Park, | 2014-04-01 | 2014-04-02 | 2014 | 1 | |
| Loeb Drama Center | Loeb Drama Center | United States, Cambridge, 64 Brattle Street | 1961-03-23 | 2005-08-20 | 1961–2005 | 9 | |
| Laurie Theater ved Brandeis University | Laurie Theater ved Brandeis University | United States, Waltham | 1968-06-21 | 1968-06-22 | 1968 | 1 | |
| Landestheater Neustrelitz | Landestheater Neustrelitz | Germany, Neustrelitz, Friedrich-Ludwig-Jahn-Straße 14 | 1922-09-29 | 2014-04-03 | 1922–2013 | 4 | |
| Landsberg (Warthe) | Landsberg (Warthe) | Poland, Gorzów Wielkopolski | 1928-03-20 | -- | 1928 | 1 | |
| Løgstør | Løgstør | Denmark, Løgstør | 1907-11-04 | -- | 1907 | 1 | |
| Lena, Festiviteten | Festiviteten Lena (Festiviteten) | Norway, Lena | 1952-02-20 | -- | 1952–1961 | 5 | |
| Lipovăţ | Lipovăţ | Romania, Lipovăţ | -- | -- | | | |
| Lawrence Batley Theatre | Lawrence Batley Theatre | England, Huddersfield, Queen St | 2005-05-04 | 2011-06-22 | 2005–2011 | 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 | |
| Laerdal | Lærdal (Laerdal) | Norway, Lærdal | 1970-01-31 | -- | 1970–1975 | 3 | |
| Little Theatre | Little Theatre | United States, Cincinnati | 1913-- | 1913-- | 1913 | 1 | |
| Löwenarena Sommeri | Löwenarena Sommeri | Switzerland, Sommeri | 1989-03-18 | -- | 1989 | 1 | |
| Lakewood Little Theatre | Lakewood Little Theatre | United States, Denver, 1980 Youngfield St | 1973-02-14 | 1973-03-11 | 1973 | 1 | |
| Load of Fun | Load of Fun | United States, Baltimore, 120 W North Ave | 2009-04-30 | 2009-05-24 | 2009 | 1 | |
| Líceum udvar | Líceum udvar | Hungary, Eger, Eszterházy tér 1 | 2007-08-17 | 2007-08-18 | 2007 | 1 | |
| Länsteatern På Gotland | Länsteatern På Gotland | Sweden, Visby, Bredgatan 10 | 2019-10-04 | 2019-10-05 | 2019 | 1 | |
| Loutkové divadlo Radost | Loutkové divadlo Radost | Czech Republic, Brno | 1985-04-26 | -- | 1985 | 1 | |
| Lund | Lund | Sweden, Lund | 1872-02-27 | -- | 1872–1936 | 3 | |
| Literaturno-memorial'nyj muzej F. M. Dostoevskogo | Literaturno-memorial'nyj muzej F. M. Dostoevskogo | Russia, St Petersburg | 2003-06-07 | -- | 2003 | 1 | |
| Loeb Playhouse, Purdue University | Loeb Playhouse, Purdue University | United States, West Lafayette, 175 S University St | 2010-02-25 | -- | 2010 | 1 | |
| Lyceum Theater | Lyceum Theater | United States, Ithaca | 1909-12-16 | -- | 1909 | 1 | |
| Logansport | Logansport | United States, Logansport | 1903-12-08 | 1903-12-08 | 1903 | 1 | |
| Leipziger Theater - Kammerspiele | Leipziger Theater - Kammerspiele | Germany, Leipzig | 1951-05-18 | -- | 1951–1984 | 3 | |
| Liskeard School & Community College | Liskeard School & Community College | England, Liskeard, Luxstowe, | 2013-10-22 | 2013-10-23 | 2013 | 1 | |
| 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 | |
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