Ace of Spades is the fourth studio album by English rock band Motörhead, released in October 1980 via Bronze Records. It is the band's most commercially successful album, peaking at number four on the UK Albums Chart and reaching gold status in the UK by March 1981. It was preceded by the release of the title track as a single in October, which peaked in the UK Singles Chart at No. 15 in early November.

Motörhead were an English rock band formed in London in 1975 by bassist and lead vocalist Lemmy Kilmister, guitarist Larry Wallis and drummer Lucas Fox. Lemmy was also the primary songwriter and only constant member. The band are often considered a precursor to the new wave of British heavy metal, which re-energised heavy metal in the late 1970s and early 1980s. Though several guitarists and drummers have played in Motörhead, most of their best-selling albums and singles feature drummer Phil "Philthy Animal" Taylor and guitarist "Fast" Eddie Clarke.