1990–91 Scottish Premier Division
|Cup Winners' Cup||Motherwell|
|Top goalscorer||Tommy Coyne (18)|
The 1990–91 Scottish Premier Division season was won by Rangers, two points ahead of Aberdeen. Rangers had seemed on course for a comfortable victory in the championship, but a loss of form around the time of manager Graeme Souness leaving the club allowed a surging Aberdeen to take the lead in the championship after 35 games. Rangers won a league deciding match against Aberdeen in the final game of the season at Ibrox. Mark Hateley scored twice in a 2–0 victory for Rangers, giving them their third successive league championship. Due to a league expansion from 10 to 12 teams, no clubs were relegated.
||Qualification or relegation
|1||Rangers (C)||36||24||7||5||62||23||+39||55||1991–92 European Cup First round|
|2||Aberdeen||36||22||9||5||62||27||+35||53||1991–92 UEFA Cup First round|
|5||Heart of Midlothian||36||14||7||15||48||55||−7||35|
|6||Motherwell||36||12||9||15||51||50||+1||33||1991–92 European Cup Winners' Cup First round|
Rules for classification:
(C) = Champion; (R) = Relegated; (P) = Promoted; (E) = Eliminated; (O) = Play-off winner; (A) = Advances to a further round.
Only applicable when the season is not finished:
(Q) = Qualified to the phase of tournament indicated; (TQ) = Qualified to tournament, but not yet to the particular phase indicated; (RQ) = Qualified to the relegation tournament indicated; (DQ) = Disqualified from tournament.