1977–78 was the 31st season of the North American senior amateur Western International Hockey League, the final round of which was won by the Kimberley Dynamiters.
Best of 7
In the "Best of 7" series final, the Kimberley Dynamiters defeated the Spokane Flyers 4 games to 2 (3-2, 4–6, 6–2, 5–3, 2–5, 6–3). The Kimberley Dynamiters advanced to the 1977-78 Western Canada Allan Cup Playoffs.