What was Broadway’s all-time longest-running show? October 15, 2011 by Pamela Landy · Filed Under: American History Broadway’s all-time longest-running show was A Chorus Line. It ran 6,137 performances from 1975 to 1990. Its nearest competitor is Oh! Calcutta! with 5,959 performances between 1976 and 1989. Related PostsWhat was the longest-running prime-time TV game show?What is the longest-running national television series?What was the longest-running sitcom on TV?What is the longest-running daytime TV drama?What is the longest-running performance in daytime TV drama history?