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| 1st(1st leg) | Leeds United | - | Újpesti Dózsa SC | 4:1 (4:0) | ||
| 2nd (2nd leg) | Újpesti Dózsa SC | - | Leeds United | 1:1 (1:0) | ||
| 1st(1st leg): 02/03/1966 | 2nd (2nd leg): 09/03/1966 | Winner: Leeds United | ||||
| 1st(1st leg) | TSV 1860 München | - | Chelsea FC | 2:2 (1:1) | ||
| 2nd (2nd leg) | Chelsea FC | - | TSV 1860 München | 1:0 (0:0) | ||
| 1st(1st leg): 15/03/1966 | 2nd (2nd leg): 29/03/1966 | Winner: Chelsea FC | ||||
| 1st(1st leg) | FC Barcelona | - | Espanyol Barcelona | 1:0 (1:0) | ||
| 2nd (2nd leg) | Espanyol Barcelona | - | FC Barcelona | 0:1 (0:0) | ||
| 1st(1st leg): 16/03/1966 | 2nd (2nd leg): 23/03/1966 | Winner: FC Barcelona | ||||
| 1st(1st leg) | Dunfermline Athletic | - | Real Zaragoza | 1:0 (0:0) | ||
| 2nd (2nd leg) | Real Zaragoza | - | Dunfermline Athletic | 4:2 (0:0, 2:1) aet | ||
| 1st(1st leg): 16/03/1966 | 2nd (2nd leg): 30/03/1966 | Winner: Real Zaragoza | ||||
