*Adana Demirspor 7-4 NK Osijek
| 17.08.2023 | NK Osijek | 3-2 | Adana Demirspor | |
| 10.08.2023 | Adana Demirspor | 5-1 | NK Osijek | |
AEK Larnaca 1-2 Maccabi Tel Aviv *
| 17.08.2023 | Maccabi Tel Aviv | 1-0 | AEK Larnaca | |
| 09.08.2023 | AEK Larnaca | 1-1 | Maccabi Tel Aviv | |
FC Santa Coloma 0-3 AZ Alkmaar *
| 17.08.2023 | AZ Alkmaar | 2-0 | FC Santa Coloma | |
| 10.08.2023 | FC Santa Coloma | 0-1 | AZ Alkmaar | |
B36 Torshavn 1-5 HNK Rijeka *
| 17.08.2023 | HNK Rijeka | 2-0 | B36 Torshavn | |
| 10.08.2023 | B36 Torshavn | 1-3 | HNK Rijeka | |
Neftchi Baku 2-5 Besiktas JK *
| 17.08.2023 | Besiktas JK | 2-1 | Neftchi Baku | |
| 10.08.2023 | Neftchi Baku | 1-3 | Besiktas JK | |
*Rapid Wien 5-0 Debrecen VSC
| 17.08.2023 | Debrecen VSC | 0-5 | Rapid Wien | |
| 10.08.2023 | Rapid Wien | 0-0 | Debrecen VSC | |
*Tobol Kostanay 1-1 Derry City
| 17.08.2023 | Derry City | 1-0/p.5-6 | Tobol Kostanay | |
| 10.08.2023 | Tobol Kostanay | 1-0 | Derry City | |
Aris Salonica 2-2 Dynamo Kyiv *
| 17.08.2023 | Dynamo Kyiv | 2-1/p.6-5 | Aris Salonica | |
| 10.08.2023 | Aris Salonica | 1-0 | Dynamo Kyiv | |
Omonia Nicosia 2-5 FC Midtjylland *
| 17.08.2023 | FC Midtjylland | 5-1 | Omonia Nicosia | |
| 10.08.2023 | Omonia Nicosia | 1-0 | FC Midtjylland | |
FCSB 0-2 FC Nordsjælland *
| 17.08.2023 | FC Nordsjælland | 2-0 | FCSB | |
| 10.08.2023 | FCSB | 0-0 | FC Nordsjælland | |
*Fenerbahçe SK 6-1 Maribor
| 17.08.2023 | Maribor | 0-3 | Fenerbahçe SK | |
| 10.08.2023 | Fenerbahçe SK | 3-1 | Maribor | |
*FK Bodo/Glimt 6-0 Pyunik FC
| 17.08.2023 | Pyunik FC | 0-3 | FK Bodo/Glimt | |
| 10.08.2023 | FK Bodo/Glimt | 3-0 | Pyunik FC | |
Hajduk Split 0-3 PAOK Salonica *
| 17.08.2023 | PAOK Salonica | 3-0 | Hajduk Split | |
| 10.08.2023 | Hajduk Split | 0-0 | PAOK Salonica | |
Hapoel Be'er Sheva 1-2 Levski Sofia *
| 17.08.2023 | Levski Sofia | 2-1 | Hapoel Be'er Sheva | |
| 10.08.2023 | Hapoel Be'er Sheva | 0-0 | Levski Sofia | |
*Hibernian FC 5-3 FC Luzern
| 17.08.2023 | FC Luzern | 2-2 | Hibernian FC | |
| 10.08.2023 | Hibernian FC | 3-1 | FC Luzern | |
*Club Brugge 10-2 KA Akureyri
| 17.08.2023 | KA Akureyri | 1-5 | Club Brugge | |
| 10.08.2023 | Club Brugge | 5-1 | KA Akureyri | |
Lech Poznan 3-4 Spartak Trnava *
| 17.08.2023 | Spartak Trnava | 3-1 | Lech Poznan | |
| 10.08.2023 | Lech Poznan | 2-1 | Spartak Trnava | |
*Legia Warszawa 6-5 Austria Wien
| 17.08.2023 | Austria Wien | 3-5 | Legia Warszawa | |
| 10.08.2023 | Legia Warszawa | 1-2 | Austria Wien | |
*Celje 5-1 Neman Grodno
| 17.08.2023 | Neman Grodno | 1-4 | Celje | |
| 10.08.2023 | Celje | 1-0 | Neman Grodno | |
*KAA Gent 6-2 Pogoń Szczecin
| 17.08.2023 | Pogoń Szczecin | 2-1 | KAA Gent | |
| 09.08.2023 | KAA Gent | 5-0 | Pogoń Szczecin | |
Rosenborg BK 3-4 Hearts FC *
| 17.08.2023 | Hearts FC | 3-1 | Rosenborg BK | |
| 10.08.2023 | Rosenborg BK | 2-1 | Hearts FC | |
Sabah FK 2-2 FK Partizan *
| 17.08.2023 | FK Partizan | 2-0/p.5-4 | Sabah FK | |
| 10.08.2023 | Sabah FK | 2-0 | FK Partizan | |
*Viktoria Plzen 6-0 Gzira United
| 17.08.2023 | Gzira United | 0-2 | Viktoria Plzen | |
| 10.08.2023 | Viktoria Plzen | 4-0 | Gzira United | |