Mark Pfeil (born July 18, 1951) is an American professional golfer who played on the PGA Tour and the Champions Tour.

Pfeil was born in Chicago Heights, Illinois. He attended the University of Southern California, where he was a two-time All-American as a member of the golf team — third-team in 1973 and second-team in 1974. While playing for the Trojans, Pfeil and his teammates, including future Masters champion Craig Stadler, lead them to a seventh-place finish at the NCAA Championship in 1973, and a fourth-place finish a year later. Pfeil was a member of the 1973 Walker Cup team. He turned professional in 1974 and joined the PGA Tour in 1976.

Pfeil had 12 top-10 finishes including a win at the 1980 Tallahassee Open during his PGA Tour career. His best finish in a major was T-22 at the 1982 PGA Championship. His best year was 1984, when he finished 69th on the money list with $101,878. In his forties, he accepted an assistant coaching position at USC and was involved in corporate golf exhibitions, mainly for Toyota.

After turning 50 in July 2001, Pfeil began play on the Champions Tour. His best finish in this venue was T-10 at the 2002 NFL Golf Classic.

Pfeil lives in Palos Verdes Estates, California. He holds the course record (59) at Palos Verdes Golf Club (par-71).