Gavin Richard Harrison (born 28 May 1963) is an English musician. He is best known for playing with the progressive rock bands Porcupine Tree (2002–2010; 2021–present), King Crimson (2008, and 2014–present) and The Pineapple Thief (2016–present). Harrison's drumming has received many awards from music publications and earned praise from other musicians.