This is a list of the longest-running shows (3,000 performances or more) in the West End, a well known professional theatre district in London. Nine currently running shows (two plays, seven musicals) have more than 3,000 performances: The Mousetrap, Les Misérables, The Phantom Of The Opera, The Woman in Black, Mamma Mia!, The Lion King, Wicked, Matilda, and The Book of Mormon.