The Hippodrome Theatre, also called the New York Hippodrome, was a theater located on Sixth Avenue between West 43rd and West 44th Streets in the Theater District of Midtown Manhattan in New York City. The theater operated from 1905 to 1939 and was called the world's largest theater by its builders, with a seating capacity of 5,300 and a stage measuring 100 by 200 feet. It had state-of-the-art theatrical technology, including a tank built into the stage apron that could be filled with water for aquatic performances.