Mark Matthew Stepnoski (born January 20, 1967) is a former American football offensive lineman in the National Football League. He attended Cathedral Preparatory School in Erie, Pennsylvania, and went on to star at the University of Pittsburgh. Stepnoski's professional career in the NFL was spent with the Dallas Cowboys (1989–1994, 1999–2000), and the Houston Oilers (1995–1998). Stepnoski won two Super Bowls while with the Cowboys and was a five-time Pro Bowler, attending the game from 1992 through 1996.