Joseph Mullen (born February 26, 1957, in New York City, NY) is a retired American professional player who played 17 seasons in the National Hockey League with the St. Louis Blues, Calgary Flames, Pittsburgh Penguins, and Boston Bruins from 1980–1997. He won 3 Stanley Cups in 1989 with Calgary, and in 1991 and 1992 with Pittsburgh. His brother Brian Mullen is also a former NHL player, and his son Patrick plays for the University of Denver in the WCHA. His other son Michael is playing professional hockey, and his oldest son Ryan played ACHA hockey at Robert Morris University.