| 20. Round | 07/01/2024 | Trento Calcio 1921 | - | US Triestina | 0:1 | ||||
| 21. Round | 13/01/2024 | US Triestina | - | UC AlbinoLeffe | 2:3 | ||||
| 22. Round | 20/01/2024 | Pro Vercelli | - | US Triestina | 1:2 | ||||
| 23. Round | 28/01/2024 | US Triestina | - | US Pergolettese | 1:1 | ||||
| 24. Round | 04/02/2024 | US Triestina | - | Aurora Pro Patria | 1:2 | ||||
| 25. Round | 09/02/2024 | Mantova 1911 SSD | - | US Triestina | 2:1 |  |
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| 26. Round | 13/02/2024 | US Triestina | - | AC Renate | 1:3 | |
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| 28. Round | 25/02/2024 | L.R. Vicenza | - | US Triestina | 2:0 | ||||
| 29. Round | 02/03/2024 | US Triestina | - | FC Legnago Salus | 2:2 | ||||
| 32. Round | 17/03/2024 | AC Pro Sesto | - | US Triestina | 0:1 | ||||
| 36. Round | 14/04/2024 | Giana Erminio | - | US Triestina | 0:1 |  |
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| 37. Round | 20/04/2024 | US Triestina | - | Novara Calcio | 2:2 | |
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| 38. Round | 28/04/2024 | Calcio Padova | - | US Triestina | 3:2 | |
Finland