| La Crosse State Teachers College | La Crosse State Teachers College | United States of America, La Crosse | 1935-11-23 | -- | 1935 | 1 | |
| La Crosse | La Crosse | United States of America, La Crosse | 1903-11-10 | 1903-11-10 | 1903 | 1 | |
| Lafayette | Lafayette | United States of America, Lafayette | 1903-10-16 | 1903-10-16 | 1903 | 1 | |
| Lead Opera House | Lead Opera House | United States of America, Lead | 1905-03-25 | 1905-03-25 | 1905 | 1 | |
| Lewinston Opera House | Lewinston Opera House | United States of America, Lewinston | 1904-02-16 | 1904-02-16 | 1904 | 1 | |
| Lewistown | Lewistown | United States of America, Lewistown | -- | -- | | | |
| Little Theater | Little Theater | United States of America, Lexington, Transylvania University, W. 4th Street | 2001-11-01 | 2001-11-10 | 2001 | 1 | |
| Litchfield Hills Theatre | Litchfield Hills Theatre | United States of America, Litchfield | 1939-08-15 | -- | 1939 | 1 | |
| Logansport | Logansport | United States of America, Logansport | 1903-12-08 | 1903-12-08 | 1903 | 1 | |
| Long Island Stage | Long Island Stage | United States of America, Long Island | 1990-02-27 | 1990-03-18 | 1990 | 1 | |
| Los Angeles | Los Angeles | United States of America, Los Angeles | -- | -- | | | |
| Los Angeles Actors' Theatre | Los Angeles Actors' Theatre | United States of America, Los Angeles | 1983-10-01 | -- | 1983 | 1 | |
| Los Angeles Theatre Company/ ANTA-WEST | Los Angeles Theatre Company/ ANTA-WEST | United States of America, Los Angeles | -- | -- | | | |
| Los Angeles Theatre | Los Angeles Theatre | United States of America, Los Angeles | 1908-04-04 | 1908-04-04 | 1908 | 1 | |
| Lounge Theatre , The | The Lounge Theatre | United States of America, Los Angeles, 6201 Santa Monica Blvd | 2013-02-10 | 2018-10-07 | 2013–2018 | 2 | |
| Lux Radio Theatre | Lux Radio Theatre | United States of America, Los Angelos, 1615 North Vine Street | 1938-06-06 | -- | 1938 | 1 | |
| Lhuca | Lhuca | United States of America, Lubbock, 511 Avenue K Lubbock, TX | 2022-09-16 | 2022-09-23 | 2022 | 1 | |
| Lloyd Theater, Fine Arts Building | Lloyd Theater, Fine Arts Building | United States of America, Lynchburg, 1971 University Blvd | 2009-03-20 | 2009-03-28 | 2009 | 1 | |
| Lindhurst Theatre | Lindhurst Theatre | United States of America, Malibu, 24255 Pacific Coast Highway | 2018-01-23 | 2018-01-27 | 2018 | 1 | |
| Lyceum Theatre | Lyceum Theatre | United States of America, Minneapolis, 82 Eleventh Street | 1892-05-02 | 1928-03-21 | 1892–1928 | 3 | |
| Laidlaw Performing Arts Center | Laidlaw Performing Arts Center | United States of America, Mobile, 5751 University Ave | 2006-02-10 | 2006-02-18 | 2006 | 1 | |
| Little Theatre, Muskingum College | Little Theatre, Muskingum College | United States of America, New Concord, 163 Stormont St | 1963-12-11 | 1963-12-14 | 1963 | 1 | |
| Linsly-Chittenden Hall at Yale University | Linsly-Chittenden Hall at Yale University | United States of America, New Haven, 55 Whitney Avenue, Suite 400 | 2012-11-12 | -- | 2012 | 1 | |
| Little Theatre, The | The Little Theatre | United States of America, New Haven, Lincoln Street | 1931-11-12 | 1975-03-02 | 1931–1975 | 2 | |
| Lyric Theatre | Lyric Theatre | United States of America, New York, 213 West 42nd Street | 1904-04-15 | 1908-05-13 | 1904–1911 | 5 | |
| 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 | |
| Longacre Theatre | Longacre Theatre | United States of America, New York, 220 W 48th St | 1925-12-06 | -- | 1925–1942 | 3 | |
| Little Theatre | Little Theatre | United States of America, New York, 240 West 44th Street | 1934-05-01 | -- | 1934 | 1 | |
| Linda Gross Theater | Linda Gross Theater | United States of America, New York, 336 W 20th St | -- | -- | | | |
| Lenfest Center for the Arts | Lenfest Center for the Arts | United States of America, New York, 615 West 129th Street | 2021-10-21 | 2021-10-24 | 2021 | 1 | |
| La MaMa Experimental Theatre | La MaMa Experimental Theatre Club | United States of America, New York, 74 E 4th St | 1992-02-13 | 2002-02-03 | 1992–2002 | 2 | |
| Lyceum Theatre | Lyceum Theatre | United States of America, New York, Fourth Avenue | 1891-03-06 | 1967-06-17 | 1891–1967 | 10 | |
| 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 | |
| Lloyd's Opera House | Lloyd's Opera House | United States of America, North Platte | 1908-06-11 | 1908-06-11 | 1908 | 1 | |
| Laurel Tree Theater | Laurel Tree Theater | United States of America, Philadelphia | 2021-03-23 | 2021-04-09 | 2021 | 1 | |
| LaBelle Theatre | LaBelle Theatre | United States of America, Pittsburg | 1910-11-10 | 1910-11-10 | 1910 | 1 | |
| Lyric Theatre | Lyric Theatre | United States of America, Portland | 1908-07-07 | 1908-07-07 | 1908 | 1 | |
| Lincoln Performance Hall | Lincoln Performance Hall | United States of America, Portland, 1620 SW Park Avenue | 2007-02-22 | 2007-03-03 | 2007 | 1 | |
| Lewis Center for the Arts - Marie and Edward Matthews '53 Acting Studio | Lewis Center for the Arts - Marie and Edward Matthews '53 Acting Studio | United States of America, Princeton, 185 Nassau Street | 2008-02-08 | 2008-02-16 | 2008 | 1 | |
| Leeds Theatre, Catherine Bryan Dill Center for the Performing Arts | Leeds Theatre, Catherine Bryan Dill Center for the Performing Arts | United States of America, Providence, 83 Waterman Street | 1998-04-09 | 1998-04-19 | 1998 | 1 | |
| Leggett Theatre, Peace College Theatre | Leggett Theatre, Peace College Theatre | United States of America, Raleigh, 15 East Peace Street | 2002-11-06 | 2007-09-25 | 2002–2007 | 2 | |
| Lyceum | Lyceum | United States of America, Rochester | 1903-04-03 | 1903-04-04 | 1903 | 1 | |
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