Chess is a musical with lyrics by Tim Rice and music by Björn Ulvaeus and Benny Andersson, formerly of ABBA. The story involves a romantic triangle between two players in a world chess championship, and a woman who manages one and falls in love with the other. Although the protagonists were not intended to represent any specific individuals, the characters’ personalities are loosely based on those of Victor Korchnoi and Bobby Fischer.

Following the pattern of Jesus Christ Superstar and Evita, a concept album of Chess was recorded in 1984, and generated a number of hit singles. The first theatrical version of Chess opened in London's West End in 1986 and played for three years. A much-altered production premiered on Broadway in 1988, but most critics gave it a poor reception, and it failed to attract large audiences. In spite of this failure in the United States, Chess, like Candide and other "cult" musicals, is frequently revised for new productions, many of which try to merge elements from both the London and Broadway versions.

Chess came seventh in a BBC Radio 2 listener poll of the United Kingdom's "Number One Essential Musicals."