Rumours is the eleventh studio album by the British-American rock band Fleetwood Mac, released on 4 February 1977, by Warner Bros. Records. Largely recorded in California in 1976, it was produced by the band with Ken Caillat and Richard Dashut. The recording sessions took place as the band members dealt with breakups and struggled with heavy drug usage, both of which shaped the album's direction and lyrics.

Recorded with the intention of making "a pop album" that would expand on the commercial success of the 1975 album Fleetwood Mac, Rumours contains a mix of electric and acoustic instrumentation, accented rhythms, guitars, and keyboards. Its lyrics concern personal and often troubled relationships. Its release was postponed by delays in the mixing process. The band promoted the album with a worldwide concert tour.

Rumours became the band's first number-one album on the UK Albums Chart and also topped the US Billboard 200. It received multi-platinum certifications in Australia, Canada, Denmark, New Zealand, the UK, and the US. As of February 2023, Rumours had sold over 40 million copies worldwide, making it one of the best selling albums of all time. All of its four singles—"Go Your Own Way", "Dreams", "Don't Stop", and "You Make Loving Fun"—reached the top 10 on the US Billboard Hot 100, with "Dreams" reaching number one. In 2004, Rumours was remastered and reissued, with the addition of the track "Silver Springs" and outtakes from the recording sessions.

The album garnered widespread acclaim from critics, who praised its production quality and the vocal harmonies of the band's three singers, and won Album of the Year at the 1978 Grammy Awards. Often considered Fleetwood Mac's magnum opus and one of the greatest albums of all time, Rumours was inducted to the Grammy Hall of Fame in 2003. The album was selected for preservation in the National Recording Registry in 2017 by the Library of Congress, which deemed it "culturally, historically, or aesthetically significant". In 2020, Rumours ranked seventh in Rolling Stone's list of the "500 Greatest Albums of All Time".