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| 1st(1st leg) | Heart of Midlothian | - | Real Zaragoza | 3:3 (0:2) | ||
| 2nd (2nd leg) | Real Zaragoza | - | Heart of Midlothian | 2:2 (2:1) | ||
| 1st(1st leg): 12/01/1966 | 2nd (2nd leg): 26/01/1966 | Winner: Real Zaragoza | ||||
| 1st(1st leg) | Dunfermline Athletic | - | TJ Spartak ZJŠ Brno | 2:0 (0:0) | ||
| 2nd (2nd leg) | TJ Spartak ZJŠ Brno | - | Dunfermline Athletic | 0:0 (0:0) | ||
| 1st(1st leg): 26/01/1966 | 2nd (2nd leg): 16/02/1966 | Winner: Dunfermline Athletic | ||||
| 1st(1st leg) | Espanyol Barcelona | - | Steagul Roșu Brașov | 3:1 (0:0) | ||
| 2nd (2nd leg) | Steagul Roșu Brașov | - | Espanyol Barcelona | 4:2 (1:1) | ||
| 1st(1st leg): 26/01/1966 | 2nd (2nd leg): 16/02/1966 | Winner: Espanyol Barcelona | ||||
| 1st(1st leg) | Leeds United | - | Valencia CF | 1:1 (0:1) | ||
| 2nd (2nd leg) | Valencia CF | - | Leeds United | 0:1 (0:0) | ||
| 1st(1st leg): 02/02/1966 | 2nd (2nd leg): 16/02/1966 | Winner: Leeds United | ||||
| 1st(1st leg) | 1. FC Köln | - | Újpesti Dózsa SC | 3:2 (3:1) | ||
| 2nd (2nd leg) | Újpesti Dózsa SC | - | 1. FC Köln | 4:0 (1:0) | ||
| 1st(1st leg): 02/02/1966 | 2nd (2nd leg): 16/02/1966 | Winner: Újpesti Dózsa SC | ||||
| 1st(1st leg) | Hannover 96 | - | FC Barcelona | 2:1 (1:1) | ||
| 2nd (2nd leg) | FC Barcelona | - | Hannover 96 | 1:0 (0:0) | ||
| 1st(1st leg): 02/02/1966 | 2nd (2nd leg): 16/02/1966 | Winner: FC Barcelona | ||||
| 1st(1st leg) | Servette FC | - | TSV 1860 München | 1:1 (0:1) | ||
| 2nd (2nd leg) | TSV 1860 München | - | Servette FC | 4:1 (2:1) | ||
| 1st(1st leg): 08/02/1966 | 2nd (2nd leg): 15/02/1966 | Winner: TSV 1860 München | ||||
| 1st(1st leg) | AC Milan | - | Chelsea FC | 2:1 (0:0) | ||
| 2nd (2nd leg) | Chelsea FC | - | AC Milan | 2:1 (2:1) | ||
| 1st(1st leg): 09/02/1966 | 2nd (2nd leg): 16/02/1966 | |||||
| decisive matches | ||||||
|---|---|---|---|---|---|---|
| Real Zaragoza | - | Heart of Midlothian | 1:0 (0:0) | |||
| Steagul Roșu Brașov | - | Espanyol Barcelona | 0:1 (0:0) | |||
| Hannover 96 | - | FC Barcelona | 1:1 (1:0, 1:1) aet | |||
| AC Milan | - | Chelsea FC | 1:1 (0:1, 1:1) aet | |||
