Bill Plager (b. July 6, 1945 in Kapuskasing, Ontario, Canada – January 3, 2016) was a Canadian ice hockey defenceman.
Plager started his National Hockey League career with the Minnesota North Stars in 1967. He also played for the St. Louis Blues and Atlanta Flames. He left the NHL after the 1976 season.
Bill Plager is the brother of former NHL players/coaches Bob Plager and Barclay Plager.