| Lom Samfunnshus | Lom Samfunnshus | Norway, Lom | 1973-10-01 | -- | 1973–1978 | 2 | |
| Landbruksskolen | Landbruksskolen | Norway, Melsomvik | 1963-01-18 | -- | 1963 | 1 | |
| Lindesberg | Lindesberg | Sweden, Lindesberg | 1936-10-26 | -- | 1936–2002 | 3 | |
| Liége | Liége | Belgium, Liége | 1895-05-18 | -- | 1895 | 1 | |
| L'Ange, Théâtre De | Théâtre De L'Ange | France, Avignon, 15 Rue des Teinturiers | 2018-07-15 | 2018-07-28 | 2018 | 1 | |
| Ludvika | Ludvika | Sweden, Ludvika | 1936-10-02 | 1991-03-08 | 1936–1991 | 3 | |
| LAKtheater | LAKtheater (Leiden Academic Arts Centre/Leids Academisch Kunstcentrum) | Netherlands, Leiden, Cleveringaplaats 1 | 2000-04-11 | 2000-04-12 | 2000–2009 | 5 | |
| Le Théâtre | Le Théâtre | France, Auxerre, 54 Rue Joubert | 1999-03-27 | -- | 1999 | 1 | |
| Langesund barneskole | Langesund barneskole | Norway, Langesund, Langesund | 2006-10-27 | -- | 2006 | 1 | |
| Landmark Theatre, The | The Landmark Theatre | England, Ilfracombe, Promenade | 2011-05-03 | 2014-11-08 | 2011–2014 | 2 | |
| Lietuvos nacionalinis dramos teatras | Lietuvos nacionalinis dramos teatras | Lithuania, Vilnius, Gedimino pr. 4 | 2009-03-07 | 2011-01-16 | 2009–2011 | 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 | |
| Lusaka Playhouse | Lusaka Playhouse | Zambia, Lusaka, cnr Church and Nasser Rds | 2006-12-14 | 2006-12-15 | 2006–2010 | 3 | |
| Leicester Haymarket Theatre | Leicester Haymarket Theatre | England, Leicester, Belgrave Gate | 1975-10-22 | 2000-10-07 | 1975–2000 | 3 | |
| la Mar, de | de la Mar | Netherlands, Amsterdam, Marnixstraat 402 | 1998-11-12 | 1998-11-14 | 1998 | 1 | |
| Liepājas Jaunajā Teātris | Liepājas Jaunajā Teātris | Latvia, Liepaja | 1920-03-28 | -- | 1920–1935 | 3 | |
| Laboratorio Teatrale Universitario | Laboratorio Teatrale Universitario | Italy, Rome | 1988-05-10 | -- | 1988 | 1 | |
| Linsly-Chittenden Hall at Yale University | Linsly-Chittenden Hall at Yale University | United States, New Haven, 55 Whitney Avenue, Suite 400 | 2012-11-12 | -- | 2012 | 1 | |
| Leipzig | Leipzig | Germany, Leipzig | -- | -- | | | |
| Landestheater Oldenburg | Landestheater Oldenburg | Germany, Oldenburg | 1925-04-02 | -- | 1925–1934 | 2 | |
| Liverpool | Liverpool | England, Liverpool | -- | -- | | | |
| Lanxin Theater | Lanxin Theater | China, Shanghai, 57 Maoming S Rd, Huangpu District | 2006-06-23 | 2006-06-25 | 2006 | 1 | |
| Langenthal | Langenthal | Switzerland | 2003-02-11 | -- | 2003 | 1 | |
| LIPA - Sennheiser Studio Theatre | LIPA - Sennheiser Studio Theatre | England, Liverpool, Pilgrim st / Mount st | 2009-05-14 | 2009-05-14 | 2009 | 1 | |
| Luna Stage | Luna Stage | United States, West Orange, 555 Valley Rd | 2004-11-18 | 2004-12-12 | 2004 | 1 | |
| Leggett Theatre, Peace College Theatre | Leggett Theatre, Peace College Theatre | United States, Raleigh, 15 East Peace Street | 2002-11-06 | 2007-09-25 | 2002–2007 | 2 | |
| Lørenskog | Lørenskog | Norway, Lørenskog | 1990-10-22 | -- | 1990 | 1 | |
| Lødingen | Lødingen skole (Loedingen) | Norway, Lødingen | 1968-09-10 | -- | 1968–1983 | 4 | |
| Le Monument-National | Le Monument-National | Canada, Montreal, 1182 St Laurent Blvd | 1996-03-19 | 1996-04-13 | 1996 | 1 | |
| Larvik kirke | Larvik kirke | Norway, Larvik | 2016-11-14 | -- | 2016 | 1 | |
| Lloyd Theater, Fine Arts Building | Lloyd Theater, Fine Arts Building | United States, Lynchburg, 1971 University Blvd | 2009-03-20 | 2009-03-28 | 2009 | 1 | |
| Liepājas Latviešu teātris | Liepājas Latviešu teātris | Latvia, Liepāja, Teātra 4 | 1907-11-04 | 1908-04-23 | 1907–1915 | 11 | |
| Losheim am See | Losheim am See | Germany, Losheim am See | -- | -- | | | |
| Loessin Playhouse | Loessin Playhouse | United States, Greenville, E 5th St, East Carolina University | 2006-11-16 | 2006-11-21 | 2006 | 1 | |
| Local Council of Women’s House, The | The Local Council of Women’s House | Canada, Halifax, Nova Scotia | 2013-10-30 | 2013-11-10 | 2013 | 1 | |
| Lippisches Landestheater | Lippisches Landestheater | Germany, Detmold | 1925-08-25 | 1931-03-11 | 1925–1934 | 3 | |
| Lillesand ungdomsskole | Lillesand ungdomsskole | Norway, Lillesand | 1997-09-22 | -- | 1997 | 1 | |
| Lübeck | Lübeck | Germany, Schleswig-Holstein | 1952-02-04 | -- | 1952 | 1 | |
| Landestheater Gotha-Sonderhausen | Landestheater Gotha-Sonderhausen | Germany, Gotha-Sonderhausen | 1940-10-01 | -- | 1940 | 1 | |
| Lowry Centre | Lowry Centre | England, Salford Quays, Pier 8 | 2000-10-24 | 2019-10-19 | 2000–2019 | 6 | |
| Lilly Hall Studio Theatre | Lilly Hall Studio Theatre | United States, Indianapolis, 4741 Clarendon Rd E Dr | 2019-12-04 | 2019--08 | 2019 | 1 | |
| Le Hall des Chars | Le Hall des Chars | France, Strasbourg, 10 rue du Hohwald | 2000-02-04 | 2000-02-13 | 2000 | 1 | |
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