Gavin Harrison (born in May 28, 1963) is an English drummer and percussionist. He is best known for playing with the British progressive rock bands Porcupine Tree and King Crimson. His influences come from his father’s jazz collection and from drummers such as Steve Gadd and Jeff Porcaro. Gavin started to work professionally in 1979. In 1983–84 he toured as a member of Renaissance. He worked as a freelance session drummer on records and tours for the following artists: Incognito, Lisa Stansfield, Lewis Taylor, Artful Dodger, Paul Young, Iggy Pop, Level 42, Porcupine Tree, OSI, King Crimson, Shooter, Dizrhythmia,The Kings Of Oblivion, Sam Brown, Tom Robinson, Go West, Black, Gail Ann Dorsey, B J Cole, Dave Stewart and Barbara Gaskin, Nathan East, Yasuaki Shimizu, Camouflage, Kevin Ayers, Claudio Baglioni, Franco Battiato, Chizuko Yoshihiro, Jakko, Richard Barbieri, Mick Karn, Eros Ramazzotti, Devogue.
In 2002 he joined Porcupine Tree.
In 2007 Gavin began a long term collaboration with singer/extended range bass player 05Ric which led to the release of three CDs, Drop (2007), Circles (2009) and The Man Who Sold Himself (2012).
In 2008, Gavin joined King Crimson as part of a dual-drummer line-up with Pat Mastelotto. Gavin played a number of shows in the United States in August with the band.
On 23 August 2011 he was a featured performer on the ‘Late Show with David Letterman’ as part of their second “Drum Solo Week”, along with such players as Stewart Copeland, Neil Peart, and Dennis Chambers.
As of September 2014, Harrison plays live in the new seven-member formation of King Crimson, as one of the three drummers.