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| 1st(1st leg) | ÍBV Vestmannaeyjar | - | Glentoran FC | 0:0 (0:0) | ||
| 2nd (2nd leg) | Glentoran FC | - | ÍBV Vestmannaeyjar | 1:1 (1:0) | ||
| 1st(1st leg): 05/09/1978 | 2nd (2nd leg): 14/09/1978 | Winner: ÍBV Vestmannaeyjar | ||||
| 1st(1st leg) | Finn Harps | - | Everton FC | 0:5 (0:2) | ||
| 2nd (2nd leg) | Everton FC | - | Finn Harps | 5:0 (2:0) | ||
| 1st(1st leg): 12/09/1978 | 2nd (2nd leg): 26/09/1978 | Winner: Everton FC | ||||
| 1st(1st leg) | Standard Liège | - | Dundee United | 1:0 (1:0) | ||
| 2nd (2nd leg) | Dundee United | - | Standard Liège | 0:0 (0:0) | ||
| 1st(1st leg): 12/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Standard Liège | ||||
| 1st(1st leg) | ASVS Dukla Praha | - | SS L.R. Vicenza | 1:0 (1:0) | ||
| 2nd (2nd leg) | SS L.R. Vicenza | - | ASVS Dukla Praha | 1:1 (1:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: ASVS Dukla Praha | ||||
| 1st(1st leg) | AC Milan | - | TJ Lokomotíva Košice | 1:0 (1:0) | ||
| 2nd (2nd leg) | TJ Lokomotíva Košice | - | AC Milan | 6:7 (0:0, 1:0, 1:0) pso | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: AC Milan | ||||
| 1st(1st leg) | CSKA Sofia | - | Valencia CF | 2:1 (1:0) | ||
| 2nd (2nd leg) | Valencia CF | - | CSKA Sofia | 4:1 (1:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Valencia CF | ||||
| 1st(1st leg) | Bor. Mönchengladbach | - | Sturm Graz | 5:1 (1:1) | ||
| 2nd (2nd leg) | Sturm Graz | - | Bor. Mönchengladbach | 1:2 (0:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Bor. Mönchengladbach | ||||
| 1st(1st leg) | Argeș Pitești | - | Panathinaikos | 3:0 (1:0) | ||
| 2nd (2nd leg) | Panathinaikos | - | Argeș Pitești | 1:2 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Argeș Pitești | ||||
| 1st(1st leg) | Athletic Club | - | AFC Ajax | 2:0 (1:0) | ||
| 2nd (2nd leg) | AFC Ajax | - | Athletic Club | 3:0 (1:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: AFC Ajax | ||||
| 1st(1st leg) | Jeunesse Esch | - | Lausanne Sports | 0:0 (0:0) | ||
| 2nd (2nd leg) | Lausanne Sports | - | Jeunesse Esch | 2:0 (1:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 26/09/1978 | Winner: Lausanne Sports | ||||
| 1st(1st leg) | FC Nantes | - | SL Benfica | 0:2 (0:2) | ||
| 2nd (2nd leg) | SL Benfica | - | FC Nantes | 0:0 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: SL Benfica | ||||
| 1st(1st leg) | Sporting Gijón | - | Torino FC | 3:0 (2:0) | ||
| 2nd (2nd leg) | Torino FC | - | Sporting Gijón | 1:0 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Sporting Gijón | ||||
| 1st(1st leg) | Sporting Braga | - | Hibernians FC | 5:0 (3:0) | ||
| 2nd (2nd leg) | Hibernians FC | - | Sporting Braga | 3:2 (1:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 20/09/1978 | Winner: Sporting Braga | ||||
| 1st(1st leg) | Galatasaray | - | West Bromwich Albion | 1:3 (0:1) | ||
| 2nd (2nd leg) | West Bromwich Albion | - | Galatasaray | 3:1 (2:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: West Bromwich Albion | ||||
| 1st(1st leg) | BFC Dynamo | - | Crvena Zvezda | 5:2 (3:2) | ||
| 2nd (2nd leg) | Crvena Zvezda | - | BFC Dynamo | 4:1 (0:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 26/09/1978 | Winner: Crvena Zvezda | ||||
| 1st(1st leg) | Kuopion PS | - | B 1903 København | 2:1 (1:1) | ||
| 2nd (2nd leg) | B 1903 København | - | Kuopion PS | 4:4 (3:3) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Kuopion PS | ||||
| 1st(1st leg) | FC Basel 1893 | - | VfB Stuttgart | 2:3 (1:1) | ||
| 2nd (2nd leg) | VfB Stuttgart | - | FC Basel 1893 | 4:1 (1:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: VfB Stuttgart | ||||
| 1st(1st leg) | Torpedo Moskva | - | Molde FK | 4:0 (2:0) | ||
| 2nd (2nd leg) | Molde FK | - | Torpedo Moskva | 3:3 (1:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Torpedo Moskva | ||||
| 1st(1st leg) | IF Elfsborg | - | RC Strasbourg | 2:0 (2:0) | ||
| 2nd (2nd leg) | RC Strasbourg | - | IF Elfsborg | 4:1 (2:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: RC Strasbourg | ||||
| 1st(1st leg) | MSV Duisburg | - | Lech Poznań | 5:0 (4:0) | ||
| 2nd (2nd leg) | Lech Poznań | - | MSV Duisburg | 2:5 (1:3) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: MSV Duisburg | ||||
| 1st(1st leg) | IK Start | - | Esbjerg fB | 0:0 (0:0) | ||
| 2nd (2nd leg) | Esbjerg fB | - | IK Start | 1:0 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Esbjerg fB | ||||
| 1st(1st leg) | Arsenal FC | - | 1. FC Lokomotive Leipzig | 3:0 (0:0) | ||
| 2nd (2nd leg) | 1. FC Lokomotive Leipzig | - | Arsenal FC | 1:4 (0:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Arsenal FC | ||||
| 1st(1st leg) | FC Carl Zeiss Jena | - | Lierse SK (old) | 1:0 (1:0) | ||
| 2nd (2nd leg) | Lierse SK (old) | - | FC Carl Zeiss Jena | 2:2 (1:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: FC Carl Zeiss Jena | ||||
| 1st(1st leg) | FC Twente '65 | - | Manchester City | 1:1 (0:1) | ||
| 2nd (2nd leg) | Manchester City | - | FC Twente '65 | 3:2 (1:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Manchester City | ||||
| 1st(1st leg) | Hibernian FC | - | IFK Norrköping | 3:2 (1:0) | ||
| 2nd (2nd leg) | IFK Norrköping | - | Hibernian FC | 0:0 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Hibernian FC | ||||
| 1st(1st leg) | CS Politechnica Timisoara | - | MTK-Vörös Meteor Sport Kör | 2:0 (1:0) | ||
| 2nd (2nd leg) | MTK-Vörös Meteor Sport Kör | - | CS Politechnica Timisoara | 2:1 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: CS Politechnica Timisoara | ||||
| 1st(1st leg) | Dinamo Tbilisi | - | SSC Napoli | 2:0 (1:0) | ||
| 2nd (2nd leg) | SSC Napoli | - | Dinamo Tbilisi | 1:1 (0:0) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Dinamo Tbilisi | ||||
| 1st(1st leg) | Hajduk Split | - | Rapid Wien | 2:0 (1:0) | ||
| 2nd (2nd leg) | Rapid Wien | - | Hajduk Split | 2:1 (0:1) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Hajduk Split | ||||
| 1st(1st leg) | Hertha BSC | - | Trakia Plovdiv | 0:0 (0:0) | ||
| 2nd (2nd leg) | Trakia Plovdiv | - | Hertha BSC | 1:2 (0:2) | ||
| 1st(1st leg): 13/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Hertha BSC | ||||
| 1st(1st leg) | Olympiakos Piraeus | - | Levski Sofia | 2:1 (0:1) | ||
| 2nd (2nd leg) | Levski Sofia | - | Olympiakos Piraeus | 3:1 (0:0, 2:1) aet | ||
| 1st(1st leg): 14/09/1978 | 2nd (2nd leg): 28/09/1978 | Winner: Levski Sofia | ||||
| 1st(1st leg) | Budapest Honved SE | - | Adanaspor | 6:0 (1:0) | ||
| 2nd (2nd leg) | Adanaspor | - | Budapest Honved SE | 2:2 (1:1) | ||
| 1st(1st leg): 14/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Budapest Honved SE | ||||
| 1st(1st leg) | Pezoporikos Larnaca | - | Śląsk Wrocław | 2:2 (1:1) | ||
| 2nd (2nd leg) | Śląsk Wrocław | - | Pezoporikos Larnaca | 5:1 (3:1) | ||
| 1st(1st leg): 16/09/1978 | 2nd (2nd leg): 27/09/1978 | Winner: Śląsk Wrocław | ||||
