The Metropolitan Opera House is an opera house located on Broadway at Lincoln Square on the Upper West Side of Manhattan in New York City. Part of Lincoln Center, the theater was designed by Wallace K. Harrison. It opened in 1966, replacing the original 1883 Metropolitan Opera House at Broadway and 39th Street. With a seating capacity of approximately 3,850, the house is the largest repertory opera house in the world. Home to the Metropolitan Opera Company, the facility also hosts the American Ballet Theatre in the summer months.

American Ballet Theatre (ABT) is a classical ballet company based in New York City. Founded in 1939 by Lucia Chase and Richard Pleasant, it is recognized as one of the world's leading classical ballet companies. Through 2019, it had an annual eight-week season at the Metropolitan Opera House in the spring and a shorter season at the David H. Koch Theater in the fall; the company tours around the world the rest of the year. The company was scheduled to have a 5-week spring season at the MET preceded by a 2-week season at the Koch Theater beginning in 2020. ABT is the parent company of the American Ballet Theatre Jacqueline Kennedy Onassis School, and was recognized as "America's National Ballet Company" in 2006 by the United States Congress.