According to multiple sources, including, the longest-running Broadway show is "The Phantom of the Opera." It officially opened on January 26, 1988, and as of its final performance on September 3, 2023, it had run for 13,981 performances. Other shows that have held the record for being the longest-running show on Broadway include "Chicago," "A Chorus Line," "Oh, Calcutta!," "Mamma Mia!," "Beauty and the Beast," "Wicked," and "Rent."