The 1974 WAFL season was the 90th season of the various incarnations of senior football in Perth and the forty-fourth as the "Western Australian National Football League". It continued the fluctuating fortunes of clubs that had been part and parcel of the league since 1970, with East Perth, the most consistent player in the competition for eight years, missing finals participation for the only time in seventeen seasons between 1966 and 1982 due largely to injuries to key defenders Gary Malarkey, who missed the second half of the season, and Ken McAullay who did not play at all. West Perth fell from runners-up to their worst season since 1939, largely owing to the loss of 1973 leading goalkicker Phil Smith which left a gaping hole in their attack.