The USTA Billie Jean King National Tennis Center is a stadium complex within Flushing Meadows–Corona Park in Queens, New York City, United States. It has been the home of the US Open Grand Slam tennis tournament, played every year in August and September, since 1978 and is operated by the United States Tennis Association (USTA). The facility has 22 courts inside its 46.5 acres and 12 in the adjoining park. The complex's three stadiums are among the largest tennis stadiums in the world; Arthur Ashe Stadium tops the global list with a listed capacity of 23,200. When the facility was built in 1978, all 33 courts used the DecoTurf cushioned acrylic surface, as did Court 17, added in 2011. However, in 2020, the court surfaces were replaced with Laykold.

Arthur Ashe Stadium is a tennis arena at Flushing Meadows–Corona Park in Queens, New York City. Part of the USTA Billie Jean King National Tennis Center, it is the main stadium of the US Open tennis tournament and has a capacity of 23,771, making it the largest tennis stadium in the world.