The 1984 Washington State Cougars football team was an American football team that represented Washington State University in the Pacific-10 Conference (Pac-10) during the 1984 NCAA Division I-A football season.

In their seventh season under head coach Jim Walden, the Cougars compiled a 6–5 record (4–3 in Pac-10, fifth), and were outscored 319 to 317.

[3] In late October, Mayes rushed for 357 yards at Oregon to set an NCAA record.

[4] With a change in the academic calendar,[5] classes now started at WSU a month earlier, in late August.

[6][7] Statistics Two Cougars were selected in the 1985 NFL draft.