Gary Lee Plummer (born January 26, 1960) is an American former professional football player who was a linebacker in the National Football League(NFL) and the United States Football League(USFL). He played college football for the California Golden Bears. Plummer was signed by the San Diego Chargers as a free agent in 1986 after playing three years in the USFL. He won a Super Bowl with the San Francisco 49ers in Super Bowl XXIX.