The 1990 Washington State Cougars football team was an American football team that represented Washington State University in the Pacific-10 Conference (Pac-10) during the 1990 NCAA Division I-A football season.

In their second season under head coach Mike Price, the Cougars compiled a 3–8 record (2–6 in Pac-10, ninth), and were outscored by their opponents 381 to 286.

[3] WSU played three quarterbacks this season: senior Brad Gossen, redshirt sophomore Aaron Garcia, and true freshman Bledsoe,[4] who started the final five games.

[5] The Cougars played their home games on campus at Martin Stadium in Pullman; sand-filled Omniturf was installed prior to the season, and the offset double-support goal posts made their debut.

[6] For the only time since 1935, Northwest foe Oregon was not on the Cougars' schedule (excluding the war years without a team (1943, 1944)).