William Edward McCreary Sr. (December 2, 1934 – November 25, 2019) was an ice hockey left winger, coach and general manager. He played in the National Hockey League with the New York Rangers, Detroit Red Wings, Montreal Canadiens and the St. Louis Blues from between 1953 and 1971, and then coached in the league with the Blues, Vancouver Canucks, and California Golden Seals between 1971 and 1975. After stepping down as coach of the Golden Seals he served as their general manager from 1975 to 1977, including their first year as the Cleveland Barons.