|Born:||January 4, 1983|
|High school:||Saint Ignatius (OH)|
|As a coach:|
|As an executive:|
Jonathan Gannon (born January 4, 1983) is an American football coach who is the defensive coordinator for the Philadelphia Eagles of the National Football League (NFL). He previously served as an assistant coach for the Indianapolis Colts, Minnesota Vikings, Tennessee Titans and Atlanta Falcons.
A native of Cleveland, Ohio, Gannon attended Saint Ignatius High School where he was a successful three-sport athlete, winning a state championship in basketball as a point guard, a district champion as a hurdler in track, and was also a standout wide receiver and defensive back.
Gannon went on to play at the University of Louisville until he suffered a career-ending injury. He remained with the program as a volunteer assistant during the 2003–2005 seasons. He was a graduate assistant the next season for Louisville's win in the 2006 Orange Bowl.
In 2007, Gannon was hired by the Atlanta Falcons as a defensive quality control coach, following Bobby Petrino to the National Football League.
In 2009, Gannon was hired by the St. Louis Rams as a college scout. He was promoted to a pro scout in 2010 and left the Rams in 2011.
In 2012, Gannon returned to coaching as and was hired by the Tennessee Titans as a defensive quality control coach, a position he would serve until 2013.
In 2014, Gannon was hired by the Minnesota Vikings as their assistant defensive backs and defensive quality control coach. He would serve in this role for four seasons before leaving the Vikings following the 2017 season.
In 2018, Gannon was hired by the Indianapolis Colts as their defensive backs and cornerbacks coach under head coach Frank Reich and stayed there until 2020.
In 2021, Gannon was hired by the Philadelphia Eagles as their defensive coordinator.