| Date | Home | Away | Group | Result |
|---|---|---|---|---|
| 14/12/23 17:45 | Ferencvaros Budapest | Fiorentina | Group F | 1-1 |
| 14/12/23 17:45 | KRC Genk | FK Čukarički | Group F | 2-0 |
| 14/12/23 17:45 | Fenerbahce Istanbul | Spartak Trnava | Group H | 4-0 |
| 14/12/23 17:45 | PFC Ludogorets Razgrad | FC Nordsjaelland | Group H | 1-0 |
| 14/12/23 17:45 | PAOK Saloniki | HJK Helsinki | Group G | 4-2 |
| 14/12/23 17:45 | FC Aberdeen | Eintracht Frankfurt | Group G | 2-0 |
| 14/12/23 17:45 | HŠK Zrinjski Mostar | Aston Villa | Group E | 1-1 |
| 14/12/23 17:45 | Legia Warschau | AZ Alkmaar | Group E | 2-0 |
| 14/12/23 20:00 | Club Brugge | FK Bodö/Glimt | Group D | 3-1 |
| 14/12/23 20:00 | Dinamo Zagreb | KF Ballkani Suhareka | Group C | 3-0 |
| 14/12/23 20:00 | Viktoria Plzen | FK Astana | Group C | 3-0 |
| 14/12/23 20:00 | Maccabi Tel Aviv | KAA Gent | Group B | 3-1 |
| 14/12/23 20:00 | SK Slovan Bratislava | Olimpija Ljubljana | Group A | 1-2 |
| 14/12/23 20:00 | OSC Lille | KÍ Klaksvík | Group A | 3-0 |
| 14/12/23 20:00 | FC Zorya Lugansk | Breidablik Kopavogur | Group B | 4-0 |
| 14/12/23 20:00 | FC Lugano | Besiktas Istanbul | Group D | 0-2 |