Ronald Arthur "Ron" Hadley (born November 9, 1963, in Caldwell, Idaho) is a former professional football player, a linebacker with the NFL's San Francisco 49ers in 1987 and 1988, when the 49ers won Super Bowl XXIII. Hadley attended the University of Washington from 1982–86, and was selected by the New York Jets in the 5th round of the 1986 NFL Draft, the 132nd overall pick.