"Eleanor Rigby" is a song by the English rock band the Beatles from their 1966 album Revolver. It was also issued on a double A-side single, paired with "Yellow Submarine". Credited to the Lennon–McCartney songwriting partnership, the song is one of only a few in which John Lennon and Paul McCartney later disputed primary authorship. Eyewitness testimony from several independent sources, including George Martin and Pete Shotton, supports McCartney's claim to authorship.

Lennon–McCartney was the songwriting partnership between English musicians John Lennon (1940–1980) and Paul McCartney of the Beatles. It is widely considered one of the greatest, best known and most successful musical collaborations ever by records sold, with the Beatles selling over 600 million records worldwide as of 2004. Between 5 October 1962 and 8 May 1970, the partnership published approximately 180 jointly credited songs, of which the vast majority were recorded by the Beatles, forming the bulk of their catalogue.