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| 1st(1st leg) | Aris Bonnevoie | - | Linfield FC | 3:3 (1:2) | ||
| 2nd (2nd leg) | Linfield FC | - | Aris Bonnevoie | 6:1 (3:0) | ||
| 1st(1st leg): 07/09/1966 | 2nd (2nd leg): 14/09/1966 | Winner: Linfield FC | ||||
| 1st(1st leg) | Admira Wien | - | Vojvodina | 0:1 (0:0) | ||
| 2nd (2nd leg) | Vojvodina | - | Admira Wien | 0:0 (0:0) | ||
| 1st(1st leg): 07/09/1966 | 2nd (2nd leg): 20/09/1966 | Winner: Vojvodina | ||||
| 1st(1st leg) | KR Reykjavík | - | FC Nantes | 2:3 (1:2) | ||
| 2nd (2nd leg) | FC Nantes | - | KR Reykjavík | 5:2 (3:0) | ||
| 1st(1st leg): 07/09/1966 | 2nd (2nd leg): 05/10/1966 | Winner: FC Nantes | ||||
| 1st(1st leg) | Haka Valkeakoski | - | RSC Anderlecht | 1:10 (1:7) | ||
| 2nd (2nd leg) | RSC Anderlecht | - | Haka Valkeakoski | 2:0 (1:0) | ||
| 1st(1st leg): 14/09/1966 | 2nd (2nd leg): 28/09/1966 | Winner: RSC Anderlecht | ||||
| 1st(1st leg) | TSV 1860 München | - | Omonia Nikosia | 8:0 (5:0) | ||
| 2nd (2nd leg) | Omonia Nikosia | - | TSV 1860 München | 1:2 (0:1) | ||
| 1st(1st leg): 20/09/1966 | 2nd (2nd leg): 25/09/1966 | Winner: TSV 1860 München | ||||
| 1st(1st leg) | Esbjerg fB | - | AS Dukla Praha | 0:2 (0:0) | ||
| 2nd (2nd leg) | AS Dukla Praha | - | Esbjerg fB | 4:0 (2:0) | ||
| 1st(1st leg): 28/09/1966 | 2nd (2nd leg): 04/10/1966 | Winner: AS Dukla Praha | ||||
| 1st(1st leg) | AFC Ajax | - | Beşiktaş | 2:0 (1:0) | ||
| 2nd (2nd leg) | Beşiktaş | - | AFC Ajax | 1:2 (0:0) | ||
| 1st(1st leg): 28/09/1966 | 2nd (2nd leg): 05/10/1966 | Winner: AFC Ajax | ||||
| 1st(1st leg) | Celtic FC | - | FC Zürich | 2:0 (0:0) | ||
| 2nd (2nd leg) | FC Zürich | - | Celtic FC | 0:3 (0:2) | ||
| 1st(1st leg): 28/09/1966 | 2nd (2nd leg): 05/10/1966 | Winner: Celtic FC | ||||
| 1st(1st leg) | CSKA Sofia | - | Olympiakos Piraeus | 3:1 (0:1) | ||
| 2nd (2nd leg) | Olympiakos Piraeus | - | CSKA Sofia | 1:0 (1:0) | ||
| 1st(1st leg): 28/09/1966 | 2nd (2nd leg): 05/10/1966 | Winner: CSKA Sofia | ||||
| 1st(1st leg) | Górnik Zabrze | - | FC Vorwärts Berlin | 2:1 (1:0) | ||
| 2nd (2nd leg) | FC Vorwärts Berlin | - | Górnik Zabrze | 2:1 (2:1) | ||
| 1st(1st leg): 28/09/1966 | 2nd (2nd leg): 12/10/1966 | |||||
| 1st(1st leg) | Inter | - | Torpedo Moskva | 1:0 (0:0) | ||
| 2nd (2nd leg) | Torpedo Moskva | - | Inter | 0:0 (0:0) | ||
| 1st(1st leg): 28/09/1966 | 2nd (2nd leg): 12/10/1966 | Winner: Inter | ||||
| 1st(1st leg) | Liverpool FC | - | Petrolul Ploieşti | 2:0 (0:0) | ||
| 2nd (2nd leg) | Petrolul Ploieşti | - | Liverpool FC | 3:1 (1:0) | ||
| 1st(1st leg): 28/09/1966 | 2nd (2nd leg): 12/10/1966 | Winner: Liverpool FC | ||||
| 1st(1st leg) | Malmö FF | - | Atlético Madrid | 0:2 (0:2) | ||
| 2nd (2nd leg) | Atlético Madrid | - | Malmö FF | 3:1 (1:1) | ||
| 1st(1st leg): 28/09/1966 | 2nd (2nd leg): 12/10/1966 | Winner: Atlético Madrid | ||||
| 1st(1st leg) | Budapesti Vasas | - | Sporting CP | 5:0 (1:0) | ||
| 2nd (2nd leg) | Sporting CP | - | Budapesti Vasas | 0:2 (0:0) | ||
| 1st(1st leg): 05/10/1966 | 2nd (2nd leg): 12/10/1966 | Winner: Budapesti Vasas | ||||
| decisive matches | ||||||
|---|---|---|---|---|---|---|
| Liverpool FC | - | Petrolul Ploieşti | 2:0 (2:0) | |||
| Górnik Zabrze | - | FC Vorwärts Berlin | 3:1 (2:0) | |||
