Blair Murray Davidson (born April 10, 1955) is a Canadian former professional ice hockey player who played in the World Hockey Association (WHA). Drafted in the third round of the 1975 NHL Amateur Draft by the Detroit Red Wings, Davidson opted to play in the WHA after being selected by the Phoenix Roadrunners in the third round of the 1975 WHA Amateur Draft. He played in two games for the Roadrunners during the 1976–77 WHA season.