Eric Mangini (born January 19, 1971 in Hartford, Connecticut) is currently the head coach of the Cleveland Browns of the National Football League. He is the former head coach for the Jets. He has been referred to as the "worst coaching hire ever" by the Browns.

Mangini was a linebacker at Bulkeley High School in Hartford, Connecticut.

Mangini played nose tackle at Division III Wesleyan University and holds the school's single-season (11.5) and career (36.5) sacks records. During the second semester of his junior and senior years, he coached the Kew Colts, a semi-professional football team in Melbourne, Australia, to two regional championships. Mangini joined the Chi Psi Fraternity that coaching mentor Bill Belichick, a Wesleyan alumnus, was part of two decades earlier.