The 1981 Portland Timbers season was the seventh season for the Portland Timbers in the now-defunct North American Soccer League.

The 1981 squad[1] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.

Pld = Matches played; W = Matches won; L = Matches lost; GF = Goals for; GA = Goals against; GD = Goal difference; Pts = PointsSource:[2] * = Shootout winSource:[3] Source:[2] Source:[3]