Joseph Edward Dufek (born August 23, 1961) is a former American football quarterback in the National Football League. He was signed by the Buffalo Bills as an undrafted free agent in 1983. He played college football at Yale.
Dufek also played for the San Diego Chargers.
He is a younger brother of Don Dufek, Jr., who was a captain of the Seattle Seahawks, Bill Dufek who was an All-American at Michigan and a son of Don Dufek, Sr., who was the most valuable player in the 1951 Rose Bowl. He is the father of Mike, an All-Big Ten Conference athlete, who played his senior season for Michigan Wolverines baseball in 2010.