|Coaching career (HC unless noted)|
|1978–1982||Southern Illinois (assistant)|
|1983–1985||Bowling Green (assistant)|
|1990–1991||New Mexico (OC)|
|1992||Eastern Michigan (OL)|
|1992||Eastern Michigan (interim HC)|
|1993–1994||Wake Forest (TE/ST)|
|1995–1996||Wake Forest (OC/OL)|
|2005||Rhein Fire (OL)|
|Head coaching record|
Jan Quarless (born c. 1950) 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. Quarless is the superintendent of schools in Dollar Bay, Michigan. He was selected to the Northern Michigan University and Upper Michigan Sports Halls of Fame.
Quarless took his first head coaching position as the head coach of the Eastern Michigan Eagles for the 1992 football season. Quarless took over mid-season as coach at Eastern after the first four games were coached by Jim Harkema, who resigned mid-season after ten years as head coach. Quarless's team produced a record of 1 win and 6 losses. The lone victory was a 7–6 home game against Ohio University.
Quarless was the 19th head football coach for the Southern Illinois Salukis in Carbondale, Illinois and he held that position for four seasons, from 1997 until 2000. His overall coaching record at SIU was 14 wins, 30 losses, and 0 ties. This ranks him tenth at SIU in terms of total wins and 14th at SIU in terms of winning percentage. 
- Dollar Bay / Tamarack City Area Schools "Administration 2008-2009" (photograph)
- Northern Michigan University Football Year by Year Results
- Eastern Michigan Eagles 2009 Football Media Guide
- NCAA News "NCAA Record" October 12, 1992, page 13
- "Football Bowl Subdivision: Eastern Michigan University Directory". The Sports Network. Retrieved April 13, 2011.
- College Football Data Warehouse Eastern Michigan 1992 results
- Southern Illinois Coaching Records
- The Courier "Transactions" Mar 31, 1983
- Lawrence Journal-World "Budde to take over as Kansas starting Center" by Gary Bedore, August 18, 1987
- Wake Forest Sports "Demon Deacon Fortunes Looking Up in 1997" August 1, 1997