The 1980 Allan Cup was the Canadian national senior ice hockey championship for the 1979-80 Senior "A" season. The event was hosted by the Spokane Flyers in Spokane, Washington. The 1980 playoff marked the 72nd time that the Allan Cup has been awarded.
The 1980 Allan Cup was the fourth Allan Cup championship to be hosted by an American city.
- Saturday, April 26 - Spokane Flyers 5 - Cambridge Hornets 3
- Sunday, April 27 - Spokane Flyers 2 - Cambridge Hornets 1
- Monday, April 28 - Spokane Flyers 5 - Cambridge Hornets 2
- Tuesday, April 29 - Spokane Flyers 4 - Cambridge Hornets 3
Spokane beat Cambridge 4 wins to none.
Spokane Flyers won the Allan Cup.