1971-72 Eastern Canada Allan Cup Playoffs

The 1971-72 Eastern Canada Allan Cup Playoffs were won by the Barrie Flyers of the OHA Senior A Hockey League. They lost in the 1971-72 Allan Cup Final to the Spokane Jets of the Western International Hockey League four games to two.

Champions

 * Northern Ontario: Sault Ste Marie Canadians
 * Ontario: Barrie Flyers
 * Newfoundland and Labrador: Grand Falls-Windsor Cataracts

Semifinals

 * Barrie Flyers - Sault Ste Marie Canadians 3:1 on series (5:7, 9:2, 6:1, 5:3)

Final

 * Barrie Flyers - Grand Falls-Windsor Cataracts 4:0 on series (3:2, 8:2, 5:1, 6:2)