Accelerate is the fourteenth studio album by American alternative rock band R.E.M., released on March 31, 2008, in Europe, and on April 1 in North America. Produced with Jacknife Lee, Accelerate was intended as a departure from the 2004 album Around the Sun. R.E.M. previewed most of the album's tracks during a five-night residency at the Olympia Theatre in Dublin, Ireland, and recorded the album in a nine-week schedule.

The album was heralded as a return to form for the band, receiving a warm reception from music critics and achieving a 79/100 rating on Metacritic. Reviewers often complimented the aggressive, purposeful sound of the songs, with Q magazine critic Keith Cameron stating that "Accelerate is the sound of a band having enjoyed a good word with themselves—and us." It was their last album to be accompanied by a tour, as the band had decided against touring for their next (and final) album Collapse into Now before disbanding.