Blair Neil Joseph "B.J." MacDonald (born November 17, 1953 in Cornwall, Ontario) is a retired professional ice hockey player who played in the National Hockey League and World Hockey Association between 1973 and 1983. He is best known for his time with the Edmonton Oilers, the club where he spent the majority of his career and where he served as one of Wayne Gretzky's first linemates at the start of Gretzky's NHL career.