| Club: | Aberdeen F.C. |
| Season: | 1990–91 |
| Manager: | Alex Smith Jocky Scott |
| Mgrtitle: | Manager |
| Chairman: | Dick Donald |
| Chrtitle: | Chairman |
| League: | Scottish Premier Division |
| League Result: | 2nd |
| Cup1: | Scottish Cup |
| Cup1 Result: | Third round |
| Cup2: | Scottish League Cup |
| Cup2 Result: | Semi final |
| Cup3: | European Cup Winners' Cup |
| Cup3 Result: | Second round |
| League Topscorer: | Hans Gillhaus (14) |
| Season Topscorer: | Hans Gillhaus (15) Eoin Jess (15) |
| Highest Attendance: | 24,000 vs. Rangers, 6 October 1990 |
| Lowest Attendance: | 7,500 vs. New Salamis, 3 October 1990 |
| Average Attendance: | 15,553 |
| Pattern B1: | _collar |
| Pattern So1: | _whiteline |
| Leftarm1: | ff0000 |
| Body1: | ff0000 |
| Rightarm1: | ff0000 |
| Shorts1: | ff0000 |
| Socks1: | ff0000 |
| Prevseason: | 1989–90 |
| Nextseason: | 1991–92 |
Aberdeen F.C. competed in the Scottish Premier Division, Scottish League Cup, Scottish Cup and European Cup Winners' Cup in season 1990–91.
The 1990–91 season finished on a low note for Aberdeen, as they led the championship going into the final day of the season but lost to Rangers, which gave the opposition the league title.[1] [2] Aberdeen's defence of the Scottish Cup ended at the first hurdle when eventual winners Motherwell defeated them at Pittodrie in January 1991. In the League Cup, Aberdeen lost to Rangers in the semi-final, while in the European Cup Winners' Cup, they lost at the second round stage to Polish club Legia Warsaw. Hans Gillhaus and Eoin Jess finished as joint top scorers with 15 goals each.
See main article: 1990–91 Scottish Premier Division.
| Match Day | Date | Opponent | H/A | Score | Aberdeen Scorer(s) | Attendance |
|---|---|---|---|---|---|---|
| 1 | 25 August | Hibernian | H | 2–0 | Connor, Gillhaus | 15,500 |
| 2 | 1 September | Celtic | A | 3–0 | Connor, Gillhaus, Mason | 45,222 |
| 3 | 8 September | Dunfermline Athletic | A | 1–1 | D. Robertson | 10,200 |
| 4 | 15 September | Dundee United | H | 1–1 | Bett | 15,500 |
| 5 | 22 September | St Mirren | H | 2–1 | Irvine, Bett | 12,500 |
| 6 | 29 September | St Johnstone | A | 0–5 | 8,711 | |
| 7 | 6 October | Rangers | H | 0–0 | 24,000 | |
| 8 | 13 October | Motherwell | A | 0–0 | 6,602 | |
| 9 | 20 October | Heart of Midlothian | H | 3–0 | Grant, Bett, Gillhaus | 14,800 |
| 10 | 27 October | Hibernian | A | 1–1 | Gillhaus | 10,500 |
| 11 | 3 November | Celtic | H | 3–0 | Jess (2), Gillhaus | 21,500 |
| 12 | 10 November | St Mirren | A | 4–0 | Jess, Gillhaus, Grant, C. Robertson | 7,638 |
| 13 | 17 November | St Johnstone | H | 0–0 | 16,000 | |
| 14 | 24 November | Dundee United | A | 3–2 | Jess (3) | 12,344 |
| 15 | 1 December | Dunfermline Athletic | H | 3–2 | Irvine, Mason, Gillhaus | 12,000 |
| 16 | 8 December | Heart of Midlothian | A | 0–1 | 9,811 | |
| 17 | 15 December | Motherwell | H | 1–1 | Jess | 9,500 |
| 18 | 22 December | Rangers | A | 2–2 | Bett | 37,998 |
| 19 | 26 December | St Mirren | H | 1–0 | Jess | 8,755 |
| 20 | 2 January | Dundee United | H | 0–1 | 19,000 | |
| 21 | 5 January | Dunfermline Athletic | A | 4–1 | Jess (4) | 7,422 |
| 22 | 12 January | Hibernian | H | 2–0 | Cameron, Booth | 13,500 |
| 23 | 19 January | Celtic | A | 0–1 | 18,187 | |
| 24 | 2 February | Heart of Midlothian | H | 5–0 | Booth (2), Connor, Gillhaus, Mason | 9,500 |
| 25 | 13 February | St Johnstone | A | 1–0 | Booth | 7,046 |
| 26 | 2 March | Rangers | H | 1–0 | Gillhaus | 22,500 |
| 27 | 5 March | Motherwell | A | 2–0 | Wright, Bett | 5,567 |
| 28 | 13 March | Dunfermline Athletic | H | 0–0 | 10,400 | |
| 29 | 23 March | Dundee United | A | 2–1 | van der Ark, Gillhaus | 10,643 |
| 30 | 30 March | Hibernian | A | 4–2 | Booth, Gillhaus (3) | 7,400 |
| 31 | 6 April | Celtic | H | 1–0 | Jess | 22,500 |
| 32 | 13 April | Heart of Midlothian | A | 4–1 | McKimmie, Connor (2), Gillhaus | 16,771 |
| 33 | 20 April | Motherwell | H | 3–0 | van der Ark (2), Connor | 14,500 |
| 34 | 27 April | St Mirren | A | 1–0 | Bett | 8,513 |
| 35 | 4 May | St Johnstone | H | 2–1 | Booth, van der Ark | 18,000 |
| 36 | 11 May | Rangers | A | 0–2 | 37,652 | |
See main article: 1990–91 Scottish League Cup.
| Round | Date | Opponent | H/A | Score | Aberdeen Scorer(s) | Attendance |
|---|---|---|---|---|---|---|
| R2 | 21 August | Queen's Park | A | 2–1 | Jess, Bett | 2,201 |
| R3 | 29 August | Stranraer | H | 4–0 | Irvine, Van de Ven, Mason (2) | 10,000 |
| QF | 5 September | Heart of Midlothian | H | 3–0 | Van de Ven, Bett, Mason | 15,500 |
| SF | 26 September | Rangers | N | 0–1 | 40,855 | |
See main article: 1990–91 Scottish Cup.
See main article: 1990–91 European Cup Winners' Cup.
| Round | Date | Opponent | H/A | Score | Aberdeen Scorer(s) | Attendance |
|---|---|---|---|---|---|---|
| R1 L1 | 19 September |  New Salamis | A | 2–0 | Mason, Gillhaus | 7,000 |
| R1 L2 | 3 October | New Salamis | H | 3–0 | Own goal, C. Robertson, Jess | 7,500 |
| R2 L1 | 24 October |  Legia Warsaw | H | 0–0 | 16,000 | |
| R2 L2 | 7 November | Legia Warsaw | A | 0–1 | 5,665 | |
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