John is the youngest brother of Chris Farley. He grew up in Madison, Wisconsin, the son of Mary Anne (Crosby) and Thomas John Farley, who owned Scotch Oil Co. His older brother, Kevin P. Farley, also acts. Tom, the eldest of the boys, works in Madison as the head of the Chris Farley Foundation. His sister, Barb, is a pre-school teacher in Madison. John attended Portsmouth Abbey School in Portsmouth, Rhode Island, and Regis University in Denver, Colorado, where he majored in Marketing. He studied and worked at the Second City in Chicago after college, and moved to LA in 1998.