Willis Jacox (born March 25, 1966, in Bloomington, Minnesota) is a former professional American football player.
Jacox attended the University of North Dakota in the mid-1980s, where he played both wide receiver and kick returner. Following his collegiate career, Jacox was signed by the Saskatchewan Roughriders of the Canadian Football League in May 1987. He played for the Roughriders in parts of the 1987, 1991 and 1992 CFL seasons, leading the league in kickoff return yards (1,231 yds) in 1991.
After his CFL career ended, Jacox played in the Arena Football League as a wide receiver for the Iowa Barnstormers. He was named Second Team All-Arena in 1996.