|Birth name||Peter Andrew Willis|
|Born||16 February 1960|
|Genres||Heavy metal, hard rock|
|Years active||1977–1991, 2003|
|Associated acts||Atomic Mass, Def Leppard, Gogmagog, Nightrun, Roadhouse|
Peter Andrew Willis (born 16 February 1960) is a retired English musician and songwriter. He is best known as a founding 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. He was fired from Def Leppard in 1982 and replaced by Phil Collen.