Ferdinand Henry "Ferd" "Dunc" Duncan (June 7, 1896 – September 8, 1976) was an American college football player. He was later a traveling salesman. Duncan played football at the University of South Dakota, where he was captain of the 1916 team. He was a prominent end for the Florida Gators of the University of Florida. Coach William G. Kline brought in players from "the University of Oklahoma and the western states" such as Duncan and Ark Newton upon his arrival. He scored all of Florida's points in one of the programs first big victories, over Alabama in 1921. Coach Stegeman of Georgia wrote in Spalding's Football Guide that year "Florida, for the first time, had a strong team."