Pearl Jam Twenty (also known as PJ20) is a 2011 American documentary directed by Cameron Crowe about the band Pearl Jam. Preliminary footage was being shot as of June 2010. Crowe completed filming in April 2011, after using 12,000 hours of footage of the band for the documentary. The film premiered at the 2011 Toronto International Film Festival and also had an accompanying book and soundtrack.

The documentary charts the history of the band, from the demise of Mother Love Bone, their battle against Ticketmaster and the tragedy of the Roskilde Festival in 2000.

The film was presented theatrically at select cinemas in the US during the month of September 2011, and premiered on October 21, 2011, on PBS' American Masters. It was released on DVD and Blu-ray on October 24, 2011. A book, written by Jonathan Cohen, was published concurrent to the film's release.