Mark Hodge Murphy (born July 13 1955 in Williamsville, New York) is a former American Football safety for the Washington Redskins who played eight seasons in the National Football League from 1977 to 1984.
After retiring as a player, he became an administrator. After serving as the athletic director at Northwestern University, he became an executive for the Green Bay Packers in the National Football League.
Murphy played in Super Bowl XVII and Super Bowl XVIII with the Washington Redskins. He played a key role in the Redskins 27-17 Super Bowl XVII win over the Miami Dolphins, recording a second half interception of Miami quarterback David Woodley's pass with the Dolphins on Washington's 37-yard line.
Murphy's best season was in 1983, when he led the NFL with 9 interceptions and returned them for 127 yards. He finished his 8 season career with 27 interceptions and 282 return yards, along with 6 fumble recoveries for 22 returns yards, in 109 games. He also made the Pro Bowl in 1982 and 1983.
Murphy was the Redskins representative to the NFL Players Association. He played a visible role in the players' strike that caused the cancellation of seven games during the 1982 season. He suspected that the Redskins' decision to release him after the 1983 season and the reluctance of any other team to sign him was retribution for his union activity.