West Side Story is a musical conceived by Jerome Robbins with music composed by Leonard Bernstein, lyrics by Stephen Sondheim, and a book by Arthur Laurents. Recordings of the musical include cast albums of the 1957 and 2009 Broadway productions and foreign productions sung in other languages, as well as live concert versions and studio albums. The 1958 West End production never released a cast album, but many of its stars recorded excerpts of the work across several recordings. Bernstein conducted the New York Philharmonic for a 1985 studio recording released by Deutsche Grammophon led by opera singers José Carreras and Kiri Te Kanawa. It won the Grammy Award for Best Musical Theater Album in 1986, and a television documentary about the making of that album won the BAFTA Award for Best Documentary the same year. The 2009 cast album won the same Grammy award in 2010. A 2013 concert recording by the San Francisco Symphony was nominated for a Grammy Award.
West Side Story was adapted into films released in 1961 and 2021, and soundtrack albums were released for both movies. The musical's score has also been adapted by music arrangers and musical ensembles for albums over the decades. Bernstein arranged music from the show into a suite titled Symphonic Dances from West Side Story, which has been recorded several times. The 1961 jazz album Kenton's West Side Story, by Stan Kenton and the Stan Kenton Orchestra, won the 1962 Grammy Award for Best Large Jazz Ensemble Album.