George Frederick Douglas Pettit[1] (born October 2, 1982) is a Canadian musician best known as the lead vocalist of the post-hardcore band Alexisonfire.

At the age of 17 Pettit, joined by friends Dallas Green, Wade MacNeil, Chris Steele, and Jesse Ingelevics formed Alexisonfire.

[12] Pettit is involved in bandmate Wade MacNeil's side project Black Lungs, for whom he sometimes plays bass on tour.

Previously, a band called the Bergenfield Four (including Pettit alongside members of Attack in Black and Fucked Up) did their first show in Toronto, Ontario at the El Mocombo, in the fall of 2006.

He also appeared with Dallas Green on Jude the Obscure's album, on the song "Wake Up My Love", and as a guest vocalist on "Vivian Girls" by Fucked Up.