Mark Alan Mullaney (born April 30, 1953 in Denver, Colorado) is a former professional American footballdefensive end in the National Football League. He was selected by the Minnesota Vikings in the 1st round (25th overall) of the 1975 NFL Draft. At 6'6", 246 lbs. from Colorado State University, Mullaney played in 12 NFL seasons from 1975 to 1987 for the Vikings and is 9th on the Vikings all time sack list with 45½ sacks. Mullaney also had 597 tackles and 13 forced fumbles 
Mullaney also holds a place in NFL history as the first NFL Player to wear a helmet shield visor on his face mask, after suffering an eye injury in 1984. In 1986 Mullaney switched to a dark tinted shield, the first player to wear this as well. Dennis Ryan, the Vikings long time equipment manager, helped Mullaney create the shield(s).