John Joseph Harrington Jr. is an American former football quarterback who played in the National Football League (NFL) for seven seasons, primarily with the Detroit Lions. He played college football for the Oregon Ducks, where he earned Pac-10 Offensive Player of the Year as a senior, and was selected third overall by the Lions in the 2002 NFL Draft. Unable to duplicate his collegiate success, he left the Lions after four seasons. He spent his final three seasons as the primary starter for the Miami Dolphins and Atlanta Falcons and a backup with the New Orleans Saints.

The Oregon Ducks football program is a college football team for the University of Oregon, located in the U.S. state of Oregon. The team competes at the NCAA Division I level in the FBS and is a member of the Pac-12 Conference (Pac-12). They will join the Big Ten Conference in 2024. Although now known as the Ducks, the team was commonly called the Webfoots until the mid-1960s.