Peter Andrew "Pete" Willis (born 16 February 1960, Sheffield, South Yorkshire, England) is a British hard rock guitarist, best known as an original member of the band Def Leppard. He co-wrote many tracks and played guitar on the band's first three albums, On Through the Night, High 'n' Dry, and Pyromania, which was being recorded at the time of his departure. He was fired from Def Leppard in 1982 and replaced by Phil Collen.