Jack Ham (born December 23, 1948) is an American former professional football player who was a linebacker for the Pittsburgh Steelers of the National Football League (NFL) from 1971 to 1982. He is considered one of the greatest outside linebackers in the history of the NFL. Jack Ham was inducted into the Pro Football Hall of Fame in 1988 and the College Football Hall of Fame in 1990. He played college football for the Penn State Nittany Lions.