Quinn David Mack (born September 11, 1965) is an American former professional baseball outfielder. He spent part of one season in Major League Baseball, appearing in five games for the Seattle Mariners in 1994.
Mack's five major league games came between June 16 and June 21, 1994. In his major league debut, Mack batted five times and got three hits, including two doubles. In the next four games, however, Mack got two hits in sixteen at bats, finishing with a .238 career batting average.
Mack is the younger brother of fellow MLB outfielder Shane Mack.