"Baby's in Black" is a song by the English rock band the Beatles, co-written by John Lennon and Paul McCartney. It appears on the United Kingdom album Beatles for Sale and on the United States album Beatles '65, both released in 1964.

Beatles for Sale is the fourth studio album by the English rock band the Beatles. It was released on 4 December 1964 in the United Kingdom on EMI's Parlophone label. The album marked a departure from the upbeat tone that had characterised the Beatles' previous work, partly due to the band's exhaustion after a series of tours that had established them as a worldwide phenomenon in 1964. Beatles for Sale was not widely available in the US until 1987, when the Beatles' catalogue was standardised for release on CD. Instead, eight of the album's fourteen tracks appeared on Capitol Records' concurrent release, Beatles '65, issued in North America only.