Blood on the Dance Floor: HIStory in the Mix is a remix album by American singer-songwriter Michael Jackson. It was released on May 20, 1997, by Epic Records, and is the second album also released by Jackson's own record label, MJJ Productions. The album is made up of eight remixes from Jackson's ninth studio album, HIStory: Past, Present and Future, Book I (1995), and five new songs. Jackson was heavily involved with the production of the new material while the remixes were produced by other artists. Blood on the Dance Floor: HIStory in the Mix incorporates R&B, pop, industrial, hip hop, house, funk and new jack swing. It concerns themes such as drug addiction, sex, relationships and paranoia.

Though Blood on the Dance Floor: HIStory in the Mix received minimal promotion by Jackson's standards, particularly in the United States, the short film Michael Jackson's Ghosts, two singles ("Blood on the Dance Floor" and "Ghosts"), a promotional single, and a music video were issued as promotion. Although initial sales in the United States were seen as disappointing for Jackson, the album peaked at number one in France, Belgium, Spain, and New Zealand. Michael Jackson's Ghosts, was premiered at the Cannes Film Festival, as part of Blood on the Dance Floor: HIStory in the Mix's promotion. The short film, also considered the official music video for "Ghosts", won the Bob Fosse Award for Best Choreography in a Music Video.

Reviews at the time of Blood on the Dance Floor: HIStory in the Mix were largely mixed, with some critics feeling that Jackson had already explored these musical themes and others criticising what they perceived as weak vocals. Other critics were more favorable, noting the album for its incorporation of genres Jackson previously hadn't explored, justifying the use of previous themes but with "brutal honesty". Blood on the Dance Floor: HIStory in the Mix has sold over six million copies worldwide, making it the best-selling remix album of all time. On October 20, 2000, it was certified Platinum by the Recording Industry Association of America (RIAA).