Further Down the Spiral is a remix album by the American industrial rock band Nine Inch Nails. It is the companion remix disc to the band’s second studio album, The Downward Spiral, and was released on May 29, 1995, in two editions, one denoted as Halo 10, and the other as Halo 10 V2, each containing a different set of tracks.

A remix album is an album consisting of remixes or rerecorded versions of an artist's earlier released material. The first act who employed the format was American singer-songwriter Harry Nilsson. As of 2007, the best-selling remix album of all time is Michael Jackson's Blood on the Dance Floor: HIStory in the Mix (1997).