Joe Barry (born July 5, 1970) is the linebackers coach for the San Diego Chargers, former linebackers coach for the USC Trojans and the Tampa Bay Buccaneers, and the former defensive coordinator for the National Football League Detroit Lions. He is the son of former Detroit Lions assistant offensive line coach Mike Barry and the son-in-law of former Detroit Lions Head Coach Rod Marinelli. Barry played linebacker at the University of Southern California. Prior to coaching at Detroit, Barry held assistant coaching positions within the Tampa Bay Buccaneers and San Francisco 49ers franchises, and in college football at the University of Southern California, Northern Arizona University and UNLV.