These are the 1973 Eastern Canada Intermediate A Championship. The winner receives the Col. J. Bourque Trophy and moves on to the 1972-73 Hardy Cup Championships.
- Embrun Panthers defeated Lively Cyclones 2-games-to-none
- ( , 5-2)
- Embrun Panthers defeated Georgetown Raiders 2-games-to-1
- (3-4 OT, 4-2, 4-3 OT)
- St. John Mooseheads defeated Embrun Panthers 2-games-to-1
- (5-4, 6-7, 7-6 OT)
- St. John Mooseheads move on to the 1972-73 Hardy Cup Championships.