Navy Blues is the fourth studio album by Canadian rock band Sloan. Released on Murderecords in 1998, the album is slightly heavier than their two previous albums, showing an influence from 1970s rock mixed with their usual catchy, melodic, Beatles-esque sound. The album contains arguably their most popular song, "Money City Maniacs," which went on to be used in a beer commercial at the time. The song also became a top 10 hit in the band's native Canada and received heavy radio airplay. Navy Blues was certified Gold in Canada on June 12, 1998. By October 1998, the album had sold more than 70,000 copies. The album was nominated for Best Rock Album at the 1999 Juno Awards.
The album's cover art is a direct copy of the movie poster for the 1959 Polish film Night Train (Polish: Pociąg).