Tuesday 4 August
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 19h00 |   Olympiakos Piraeus vs NEC Nijmegen | 0 - 0 | UEFA Champions League Stage : Round 3rd Qualifying | Georgios Karaiskakis Stadium |
Tuesday 11 August
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 18h30 | NEC Nijmegen vs Olympiakos Piraeus | 2 - 1 | UEFA Champions League Stage : Round 3rd Qualifying | Goffertstadion |
Wednesday 16 September
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 20h00 |  Olympiakos Piraeus vs Jagiellonia | - | UEFA Europa League Stage : League phase J1 | Georgios Karaiskakis Stadium |
Thursday 15 October
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 20h00 |  Marseille vs Olympiakos Piraeus | - | UEFA Europa League Stage : League phase J2 | - |
Thursday 22 October
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 20h00 |  Olympiakos Piraeus vs Sparta Praha | - | UEFA Europa League Stage : League phase J3 | Georgios Karaiskakis Stadium |
Thursday 5 November
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 18h45 |  Rennes vs Olympiakos Piraeus | - | UEFA Europa League Stage : League phase J4 | Roazhon Park |
Thursday 26 November
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 18h45 |  Olympiakos Piraeus vs AC Milan | - | UEFA Europa League Stage : League phase J5 | Georgios Karaiskakis Stadium |
Thursday 10 December
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 21h00 |  Celje vs Olympiakos Piraeus | - | UEFA Europa League Stage : League phase J6 | - |
Thursday 21 January
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 18h45 |  Olympiakos Piraeus vs 1899 Hoffenheim | - | UEFA Europa League Stage : League phase J7 | Georgios Karaiskakis Stadium |
Thursday 28 January
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 21h00 |  Torreense vs Olympiakos Piraeus | - | UEFA Europa League Stage : League phase J8 | Algarve Stadium |