Robert Michael Miller, Jr. (born September 28, 1956 in Medford, Massachusetts and grew up in Billerica, Massachusetts) is a retired professional ice hockey player who played 404 games in the National Hockey League between 1977 and 1985. He played for the Boston Bruins, Colorado Rockies, Los Angeles Kings and in Finland and Switzerland.

Miller was a college hockey star for the University of New Hampshire as well as the US national team at the 1976 Winter Olympics before turning professional. He was also a member of the US team at the 1981 Canada Cup and 1977, 1981, 1982, 1985 Ice Hockey World Championship tournaments. He is the older brother of Paul Miller.