Jan Quarless (born c. 1951) is a former American football player and coach. He served as the Head Football Coach at Eastern Michigan University in 1992 and at Southern Illinois University Carbondale from 1997 to 2000, compiling a career college football record of 15–36. He was selected to the Northern Michigan University and Upper Michigan Hall of Fame. Quarless holds a Master’s Degree from the University of Michigan and PhD from Southern Illinois University.