Robert "Bobby" Lemieux (born December 16, 1944) is a retired professional ice hockey defenceman who played 19 games for the Oakland Seals of the National Hockey League (NHL) in 1967–68.
He was a First Team All-Star and was named the top defenceman of the International Hockey League in 1965–66 while playing with the Muskegon Zephyrs.
He played three seasons with the Western Hockey League's Vancouver Canucks before retiring in 1970.