Vontez Douglas Duff (born March 8, 1982) is an American former professional football cornerback who played in the National Football League (NFL). Born and raised in Copperas Cove, Texas, Duff attended Copperas Cove High School, where he was a standout running back. He attended the University of Notre Dame from 2000 to 2004 and played cornerback and also frequently returned kickoffs and punts. He was selected by the Houston Texans in the sixth round of the 2004 NFL draft. He also played for the Chicago Bears. Duff would later go on to play for the Las Vegas Gladiators of the Arena Football League (AFL).