The 1979–80 WHL season was the 14th season of the Western Hockey League (WHL). It featured eleven teams completing a 72-game regular season. The Portland Winter Hawks became the first American-based club to top the regular season standings, capturing the Scotty Munro Memorial Trophy. In the playoffs, the Regina Pats won their second President's Cup, defeating the Victoria Cougars in the championship final.
The season was the first for the Great Falls Americans, after the Edmonton Oil Kings relocated to Great Falls prior to the season. However, the team lasted only 28 games before ceasing operations on December 16, 1979, for the remainder of the season. Thus while twelve teams opened the season, only eleven played it through to completion.
1Folded mid-season
Note: GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalties in minutes
Round Robin format