List of Participants in European Cup 1990-1991 (31 clubs)
| Club | Country | Participant as.. | M | W | D | L | GF | GA | GD |
|---|---|---|---|---|---|---|---|---|---|
| KS Dinamo Tirana |  ALB | 2 | 0 | 1 | 1 | 1 | 5 | -4 | |
| FC Tirol Innsbruck |  AUT | 4 | 2 | 1 | 1 | 10 | 12 | -2 | |
| Club Brugge |  BEL | 4 | 1 | 2 | 1 | 3 | 2 | +1 | |
| CSKA Sofia |  BUL | 4 | 1 | 0 | 3 | 3 | 8 | -5 | |
| APOEL |  CYP | 2 | 0 | 0 | 2 | 2 | 7 | -5 | |
| AC Sparta Prague |  CZ | 2 | 0 | 0 | 2 | 0 | 4 | -4 | |
| Odense BK |  DEN | 2 | 0 | 0 | 2 | 1 | 10 | -9 | |
| FC Kuusysi Lahti |  FIN | 2 | 0 | 0 | 2 | 1 | 7 | -6 | |
| Olympique Marseille |  FRA | 9 | 5 | 3 | 1 | 22 | 8 | +14 | |
| Dynamo Dresden |  GDR | 6 | 2 | 2 | 2 | 8 | 9 | -1 | |
| FC Bayern Munich |  GER | 8 | 5 | 2 | 1 | 20 | 7 | +13 | |
| Panathinaikos |  GRE | 2 | 0 | 0 | 2 | 1 | 5 | -4 | |
| Ujpesti Dozsa |  HUN | 2 | 0 | 0 | 2 | 0 | 5 | -5 | |
| KA Akureyri |  ISL | 2 | 1 | 0 | 1 | 1 | 3 | -2 | |
| St Patrick's Athletic |  IRL | 2 | 0 | 1 | 1 | 1 | 5 | -4 | |
| AC Milan |  ITA | 4 | 1 | 2 | 1 | 2 | 4 | -2 | |
| Napoli | ITA | 4 | 2 | 2 | 0 | 5 | 0 | +5 | |
| Union Luxembourg |  LUX | 2 | 0 | 0 | 2 | 1 | 6 | -5 | |
| Valletta FC |  MLT | 2 | 0 | 0 | 2 | 0 | 10 | -10 | |
| Portadown |  NIR | 2 | 0 | 0 | 2 | 1 | 13 | -12 | |
| Lillestrom SK |  NOR | 2 | 0 | 1 | 1 | 1 | 3 | -2 | |
| Lech Poznan |  POL | 4 | 3 | 0 | 1 | 9 | 9 | ±0 | |
| FC Porto |  POR | 6 | 3 | 2 | 1 | 18 | 4 | +14 | |
| FC Dinamo Bucuresti |  ROM | 4 | 1 | 2 | 1 | 5 | 5 | ±0 | |
| Rangers |  SCO | 4 | 2 | 1 | 1 | 11 | 4 | +7 | |
| Real Madrid |  ESP | 6 | 3 | 2 | 1 | 22 | 7 | +15 | |
| Malmo FF |  SWE | 4 | 1 | 3 | 0 | 7 | 6 | +1 | |
| Grasshopper |  SUI | Champion | 2 | 0 | 1 | 1 | 2 | 5 | -3 |
| Besiktas |  TUR | 2 | 0 | 1 | 1 | 4 | 5 | -1 | |
| Spartak Moscow |  USSR | Champion | 8 | 3 | 3 | 2 | 9 | 6 | +3 |
| Crvena Zvezda Belgrade |  YUG | 9 | 5 | 4 | 0 | 19 | 6 | +13 |
1989/1990
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