John Harold Lambert (born July 8, 1952) is an American former professional football player who was a linebacker for his entire 11-year career for Pittsburgh Steelers of the National Football League (NFL). Recognized by the Pro Football Hall of Fame in 1990 as "the greatest linebacker of his era," Lambert was the starting middle linebacker on four Super Bowl-winning teams with the Steelers.[2] He played college football for the Kent State Golden Flashes.