StadiumKaraiskakis Stadium
| Current capacity of the stadium |
| Standing | 39 700 |
| Seats | 24 800 |
| Tribune | 14 900 |
| Seats for sponsors | 500 |
| Fans attended |
| 10. 11. 2025 | Olympiacos Pireus F.C.-Sligo Rovers | 5 172 |
| 23. 9. 2025 | Olympiacos Pireus F.C.-Lardos SC | 4 162 |
| 19. 9. 2025 | Olympiacos Pireus F.C.-Vallecano | 4 207 |
| 16. 9. 2025 | Olympiacos Pireus F.C.-Panserraikos.FC | 4 946 |
| 5. 9. 2025 | Olympiacos Pireus F.C.-FK 1952 Teleoptik | 20 940 |
| 29. 8. 2025 | Olympiacos Pireus F.C.-Aris Solún FC | 12 521 |
| 22. 8. 2025 | Olympiacos Pireus F.C.-FC Erfurt | 15 528 |
| 15. 8. 2025 | Olympiacos Pireus F.C.-Real Jaén CF | 16 485 |
| 8. 8. 2025 | Olympiacos Pireus F.C.-SC Internacional 1909™ | 14 581 |