| Lake Front Park | Illinois | 10,000 seats | May 14, 1878 | baseball |
| Lakewood Church Central Campus | Houston | 15,676 seats | November 1, 1975 | basketball |
| Lambeau Field | Green Bay | 80,750 seats | September 29, 1957 | American football |
| Lambert Fieldhouse | Indiana | 1,000 seats | December 12, 1937 | — |
| Laney College Football Stadium | California | 5,500 seats | — | — |
| Larson Ice Center | — | 2,600 seats | March 2002 | — |
| League Park | Cleveland | 9,000 seats | May 1, 1891 | baseball |
| League Park | Cincinnati | 3,000 seats | May 1, 1884 | — |
| Lenovo Center | North Carolina, Raleigh | 19,722 seats | October 29, 1999 | basketball |
| Levi's Stadium | Santa Clara | 68,500 seats | July 17, 2014 | association football, American football |
| Lionel Roberts Park | Charlotte Amalie, United States Virgin Islands | 9,000 seats | — | American football |
| Little Caesars Arena | Detroit | — | September 5, 2017 | ice hockey |
| Lloyd Street Grounds | Milwaukee | — | 1895 | — |
| LoanDepot Park | Miami | 36,742 seats | April 1, 2012 | baseball |
| Lockhart Stadium | Fort Lauderdale | 20,450 seats | 1959 | American football |
| Long Island Arena | New York | 4,000 seats | 1959 | — |
| Los Angeles Memorial Coliseum | Los Angeles | 77,500 seats | 1923 | motorcycle speedway, baseball, American football, association football |
| Los Angeles Memorial Sports Arena | Los Angeles | 16,161 seats | July 4, 1959 | basketball |
| Loyola Field House | Louisiana | 6,500 seats | 1954 | — |
| Lubbers Stadium | Michigan | 10,700 seats | September 15, 1973 | — |
| Lubbock Municipal Coliseum | Lubbock | 6,893 seats | 1956 | — |
| Lucas Oil Stadium | Indianapolis | 62,421 seats | August 16, 2008 | American football |
| Luis T. Diaz Coliseum | Aguadilla | 2,500 seats | 1971 | — |
| Lumen Field | Seattle | 72,000 seats | July 28, 2002 | American football |
| Lupton Stadium | Fort Worth | 4,500 seats | February 2, 2003 | — |
| Lusitano Stadium | Massachusetts | 3,000 seats | 1918 | — |