The 1978 Allan Cup was the Canadian senior ice hockey championship for the 1977–78 senior "A" season. The event was hosted by the Kimberley Dynamiters in Kimberley, British Columbia. The 1978 playoff marked the 70th time that the Allan Cup has been awarded.
Kimberley Dynamiters 6 - Brantford Alexanders 2
Kimberley Dynamiters 4 - Brantford Alexanders 2
Brantford Alexanders 5 - Kimberley Dynamiters 3
Kimberley Dynamiters 5 - Brantford Alexanders 2
Kimberley Dynamiters 7 - Brantford Alexanders 3