Pat Barnes (born February 23, 1975 in Arlington Heights, Illinois) is a retired National Football League quarterback. He played from 1997 to 2003 in the NFL, XFL, and CFL.Played as a quarterback at University of California, where he started a couple of games as a freshman and emerged as a budding star through his college career. Barnes played for Steve Mariucci at Cal, where he threw 420 passes during the 1996 season, and learned Mariucci's version of the West Coast offense.