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| 1st(1st leg) | FK Bodø/Glimt | - | Union Luxembourg | 4:1 (0:1) | ||
| 2nd (2nd leg) | Union Luxembourg | - | FK Bodø/Glimt | 1:0 (1:0) | ||
| 1st(1st leg): 27/08/1978 | 2nd (2nd leg): 12/09/1978 | Winner: FK Bodø/Glimt | ||||
| 1st(1st leg) | FC Universitatea Craiova | - | Fortuna Düsseldorf | 3:4 (1:2) | ||
| 2nd (2nd leg) | Fortuna Düsseldorf | - | FC Universitatea Craiova | 1:1 (1:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Fortuna Düsseldorf | ||||
| 1st(1st leg) | Floriana FC | - | Inter | 1:3 (0:1) | ||
| 2nd (2nd leg) | Inter | - | Floriana FC | 5:0 (2:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Inter | ||||
| 1st(1st leg) | Ferencvárosi TC | - | Kalmar FF | 2:0 (2:0) | ||
| 2nd (2nd leg) | Kalmar FF | - | Ferencvárosi TC | 2:2 (2:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Ferencvárosi TC | ||||
| 1st(1st leg) | Sporting CP | - | TJ Baník Ostrava OKD | 0:1 (0:1) | ||
| 2nd (2nd leg) | TJ Baník Ostrava OKD | - | Sporting CP | 1:0 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: TJ Baník Ostrava OKD | ||||
| 1st(1st leg) | Valur Reykjavík | - | 1. FC Magdeburg | 1:1 (0:0) | ||
| 2nd (2nd leg) | 1. FC Magdeburg | - | Valur Reykjavík | 4:0 (3:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: 1. FC Magdeburg | ||||
| 1st(1st leg) | DFS Marek Stanke Dimitrov | - | Aberdeen FC | 3:2 (0:1) | ||
| 2nd (2nd leg) | Aberdeen FC | - | DFS Marek Stanke Dimitrov | 3:0 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Aberdeen FC | ||||
| 1st(1st leg) | KSK Beveren | - | Ballymena United | 3:0 (2:0) | ||
| 2nd (2nd leg) | Ballymena United | - | KSK Beveren | 0:3 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: KSK Beveren | ||||
| 1st(1st leg) | PAOK Saloniki | - | Servette FC | 2:0 (0:0) | ||
| 2nd (2nd leg) | Servette FC | - | PAOK Saloniki | 4:0 (1:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Servette FC | ||||
| 1st(1st leg) | AZ '67 Alkmaar | - | Ipswich Town | 0:0 (0:0) | ||
| 2nd (2nd leg) | Ipswich Town | - | AZ '67 Alkmaar | 2:0 (1:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Ipswich Town | ||||
| 1st(1st leg) | Shamrock Rovers | - | APOEL Nikosia | 2:0 (1:0) | ||
| 2nd (2nd leg) | APOEL Nikosia | - | Shamrock Rovers | 0:1 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Shamrock Rovers | ||||
| 1st(1st leg) | Zagłębie Sosnowiec | - | SSW Innsbruck | 2:3 (1:2) | ||
| 2nd (2nd leg) | SSW Innsbruck | - | Zagłębie Sosnowiec | 1:1 (1:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: SSW Innsbruck | ||||
| 1st(1st leg) | HNK Rijeka | - | Wrexham AFC | 3:0 (2:0) | ||
| 2nd (2nd leg) | Wrexham AFC | - | HNK Rijeka | 2:0 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: HNK Rijeka | ||||
| 1st(1st leg) | FC Barcelona | - | Shakhtyor Donetsk | 3:0 (3:0) | ||
| 2nd (2nd leg) | Shakhtyor Donetsk | - | FC Barcelona | 1:1 (1:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: FC Barcelona | ||||
| 1st(1st leg) | BK Frem København | - | AS Nancy Lorraine | 2:0 (1:0) | ||
| 2nd (2nd leg) | AS Nancy Lorraine | - | BK Frem København | 4:0 (1:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: AS Nancy Lorraine | ||||
