Jamal Duff (born March 11, 1972) is an American actor and former American football player in the National Football League (NFL). He played high school football at Foothill High in Tustin, CA. He played his college football at San Diego State University, then played in the National Football League for the New York Giants and Washington Redskins. He was also a key member of the ill-fated XFL's Los Angeles Xtreme that won the league's first and only title.

Duff has appeared in S.W.A.T., The Rundown, The Eliminator, Dodgeball: A True Underdog Story, Revenge, The Game Plan, Brooklyn Nine-Nine, and Torque.