"The Long and Winding Road" is a ballad written by Paul McCartney (credited to Lennon–McCartney) from the Beatles' album Let It Be. It became the group's 20th and last number-one song on the Billboard Hot 100 chart in the United States in June 1970, and was the last single released by the quartet.

While the released version of the song was very successful, the post-production modifications by producer Phil Spector angered McCartney to the point that when he made his case in court for breaking up the Beatles as a legal entity, he cited the treatment of "The Long and Winding Road" as one of six reasons for doing so. New versions of the song with simpler instrumentation were subsequently released by both the Beatles and McCartney.

In 2011, Rolling Stone ranked "The Long and Winding Road" number 90 on their list of 100 greatest Beatles songs of all time.

McCartney originally wrote the song at his farm in Scotland, and was inspired by the growing tension among the Beatles. McCartney said later "I just sat down at my piano in Scotland, started playing and came up with that song, imagining it was going to be done by someone like Ray Charles. I have always found inspiration in the calm beauty of Scotland and again it proved the place where I found inspiration."

McCartney offered the song to Tom Jones as long at it was his next single. As Jones was already close to releasing "Without Love" it was not to be. Jones recounted this version of events again on The Voice (UK) in February 2017.

McCartney recorded a demo version of the song, with Beatles' engineer Alan Brown assisting, in September 1968, during the recording sessions for The Beatles.

The song takes the form of a piano-based ballad, with conventional chord changes. The song's home key is E-flat major but it also uses the relative C minor. Lyrically, it is a sad and melancholic song, with an evocation of an as-yet unrequited, though apparently inevitable, love.

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