Saturday Night Fever is the soundtrack album from the 1977 film Saturday Night Fever starring John Travolta. The soundtrack was released on November 15, 1977. Prior to the release of Thriller by Michael Jackson, Saturday Night Fever was the best-selling album in music history, and still ranks among the best-selling soundtrack albums worldwide, with sales figures of over 40 million copies.

In the United States, the album was certified 16× Platinum for shipments of at least 16 million units. The album stayed atop the charts for 24 straight weeks from January to July 1978 and stayed on Billboard's album charts for 120 weeks until March 1980. Three singles from the album contributed by the Bee Gees—"How Deep Is Your Love", "Stayin' Alive" and "Night Fever"—along with Yvonne Elliman's "If I Can't Have You", all reached No. 1 in the US. In the UK, the album spent 18 consecutive weeks at No. 1. The album epitomized the disco phenomenon on both sides of the Atlantic and was an international sensation. The album has been added to the National Recording Registry in the Library of Congress in 2014 for being culturally significant.