The 1989–90 WHL season was the 24th season of the Western Hockey League (WHL). Fourteen teams completed a 72-game season. For the second time in franchise history, the Kamloops Blazers captured both the Scotty Munro Memorial Trophy and the President's Cup in the same season—they last accomplished the feat in the 1983–84 season.

Regular season

Final standings

Scoring leaders

Note: GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalties in minutes

1990 WHL Playoffs

First round

Division Semifinals

Division Finals

WHL Championship

All-Star game

On January 26, the East Division defeated the West Division 9–6 at Kennewick, Washington before a crowd of 5,059.

WHL awards

All-Star Teams

Trivia

During the 1989–90 WHL season, the Victoria Cougars set several records for futility within a 72-game WHL season. They recorded only 6 wins and 12 points. They also broke the record for most losses in a row at 37 (November 22, 1989 – February 11, 1990).