"Another Day" is a song recorded by Paul McCartney in New York in 1970, during the sessions for his album Ram. Although it was the first single of McCartney's solo career, "Another Day" was written and previewed during the Beatles' Let It Be sessions in 1969. It was released on 19 February 1971 in the UK, with "Oh Woman, Oh Why" as the B-side. Neither song was included on the Ram album.

"Another Day" is written in an observational style reminiscent of "Eleanor Rigby"; Denny Seiwell, the drummer from the Ram Sessions, called it "'Eleanor Rigby' in New York City." The lyrics describe the drudgery and sadness of an unnamed woman's life at work and at home.

Paul's wife, Linda McCartney, provided vocal harmonies on "Another Day". Describing his and Linda's distinctive harmonies, McCartney said "I wanted 'our' sound." Paul was deliberately attempting to create a unique McCartney style, a musical identity outside of the Beatles. McCartney had decided to list Linda as co-writer of more than half the songs on Ram, and this decision extended to "Another Day." Despite her lack of a musical pedigree, he insisted that Linda had been an active collaborator, making valuable suggestions about lyrics and melodies. Linda's credits as co-writer were later regarded as business manoeuvres in the post-Beatles legal matters. In July 1971, Northern Songs and Maclen Music sued Paul and Linda McCartney for violating an exclusive rights agreement by collaborating on "Another Day". In June 1972, ATV announced that "all differences between them have been amicably settled" and Paul and Linda signed a new seven-year co-publishing contract between ATV and McCartney Music.

Matching the lyrical sense of isolation and social alienation was the unique sound of "Another Day." Recording engineer on the Ram sessions Dixon Van Winkle said that Paul asked him to pick the single. With McCartney's blessing, Winkle mixed the song and pressed 100 copies for radio stations. "The next day I heard it on the air, I realized...we got carried away with the bass part...it pumped like crazy. But we never remixed the song, and Paul never said anything."

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