Hamilton Pierce "Mac" McWhorter (born June 17, 1950) is an American football coach and former player.
He was also the interim head coach at Georgia Tech for one game, in 2001 after George O'Leary resigned.
McWhorter the 2001 Georgia Tech Yellow Jackets football team to a victory in the 2001 Seattle Bowl against No.
McWhorter, who one sportswriter described as O'Brien's "biggest get" onto the coaching staff at Penn State, despite his enjoyment of retirement and attending football games as a fan of the Georgia Bulldogs, agreed, and moved to the northeast for the first time in his life.
His tenure at Penn State was not expected to last particularly long for a variety of reasons including parents in worsening health and grandchildren, but while at Penn State, he was beloved among his players, including offensive guard Miles Dieffenbach, who commented, "We love him a lot ...