Stephen John Lyons (born June 3, 1960) is a former American professional baseball player who previously worked as a television sportscaster for the New England Sports Network (NESN). He played in Major League Baseball (MLB) for four teams over a period of nine seasons (1985–1993), including four stints with the Boston Red Sox. He was initially an outfielder and third baseman, but found a niche as a utility player. After his retirement as a player, he became a television baseball commentator. In 2021, NESN announced Lyons would not be returning to his in studio pre and post game analyst role.