Blair David MacKasey (born December 13, 1955) is a Canadian former professional ice hockey defenceman. He was drafted in the fourth round, 55th overall, by the Washington Capitals in the 1975 NHL Entry Draft. He was also drafted by the Indianapolis Racers (fourth round, 47th overall) of the World Hockey Association in the 1975 WHA Amateur Draft. MacKasey was born in Hamilton, Ontario. As a youth, he played in the 1967 Quebec International Pee-Wee Hockey Tournament with a minor ice hockey team from Verdun, Quebec.