Transfers
Recent player movements in and out of the squad
| Date | Player | From | To | Type |
|---|---|---|---|---|
| 04.09.2020 | Miguel Guerrero | Olympiakos Piraeus | Nottingham Forest | N/A |
| 01.09.2020 | Bruno Gaspar | Olympiakos Piraeus | Sporting CP | N/A |
| 01.09.2020 | Koka | Olympiakos Piraeus | SC Braga | N/A |
| 01.09.2020 | Guilherme | Olympiakos Piraeus | — | N/A |
| 28.08.2020 | A. Keita | Olympiakos Piraeus | Ajaccio | Loan |
| 26.08.2020 | F. Durmishaj | Olympiakos Piraeus | Larisa | Loan |
| 26.08.2020 | G. Masouras | Olympiakos Piraeus | Gornik Zabrze | Loan |
| 17.08.2020 | G. Xenitidis | Olympiakos Piraeus | — | Loan |
| 17.08.2020 | A. Voilis | Olympiakos Piraeus | — | Loan |
| 17.08.2020 | O. Elabdellaoui | Olympiakos Piraeus | Galatasaray | N/A |
| 11.08.2020 | Igor Silva | Olympiakos Piraeus | — | N/A |
| 10.08.2020 | K. Tsimikas | Olympiakos Piraeus | Liverpool | € 13M |
| 04.08.2020 | E. Mor | Olympiakos Piraeus | Celta Vigo | N/A |
| 01.02.2020 | S. Marković | Olympiakos Piraeus | Larisa | Loan |
| 31.01.2020 | Y. Meriah | Olympiakos Piraeus | Kasimpasa | Loan |
| 31.01.2020 | Miguel Guerrero | Olympiakos Piraeus | Leganes | Loan |
| 30.01.2020 | Daniel Podence | Olympiakos Piraeus | Wolves | € 20M |
| 29.01.2020 | Y. Benzia | Olympiakos Piraeus | Lille | N/A |
| 29.01.2020 | L. Koútris | Olympiakos Piraeus | Mallorca | Loan |
| 17.01.2020 | A. Voilis | Olympiakos Piraeus | Casa Pia | Loan |
| 03.01.2020 | N. Čumić | Olympiakos Piraeus | — | Loan |
| 01.09.2019 | L. Choutesiotis | Olympiakos Piraeus | — | Free |
| 30.08.2019 | F. Durmishaj | Olympiakos Piraeus | — | Loan |
| 30.08.2019 | T. Androutsos | Olympiakos Piraeus | Atromitos | Loan |
| 20.08.2019 | B. Natcho | Olympiakos Piraeus | FK Partizan | Free |
| 18.08.2019 | N. Peios | Olympiakos Piraeus | — | Loan |
| 17.08.2019 | H. Cuypers | Olympiakos Piraeus | Ajaccio | Loan |
| 17.08.2019 | A. Keita | Olympiakos Piraeus | Ajaccio | Loan |
| 12.08.2019 | F. Soldano | Olympiakos Piraeus | — | Loan |
| 03.08.2019 | Igor Silva | Olympiakos Piraeus | — | Loan |
| 03.08.2019 | Y. Lodygin | Olympiakos Piraeus | Gazişehir Gaziantep | Free |
| 12.07.2019 | M. Saliakas | Olympiakos Piraeus | — | Free |
| 05.07.2019 | D. Nikolaou | Olympiakos Piraeus | Empoli | € 3.5M |
| 03.07.2019 | Y. Touré | Olympiakos Piraeus | — | N/A |
| 01.07.2019 | Koka | Olympiakos Piraeus | SC Braga | N/A |
| 01.07.2019 | Gil Dias | Olympiakos Piraeus | Monaco | N/A |
| 01.07.2019 | Q. Laçi | Olympiakos Piraeus | Ajaccio | N/A |
| 01.07.2019 | B. Engels | Olympiakos Piraeus | Reims | € 4M |
| 01.07.2019 | Roderick Miranda | Olympiakos Piraeus | Wolves | N/A |
| 21.06.2019 | A. Gianniotis | Olympiakos Piraeus | Maccabi Tel Aviv | Free |
| 05.02.2019 | I. Fetfatzidis | Olympiakos Piraeus | Aris Thessalonikis | Free |
| 31.01.2019 | G. Masouras | Olympiakos Piraeus | — | Loan |
| 31.01.2019 | Nahuel Leiva | Olympiakos Piraeus | — | Loan |
| 28.01.2019 | D. Nikolaou | Olympiakos Piraeus | Empoli | Loan |
| 19.01.2019 | D. Manos | Olympiakos Piraeus | — | Loan |
| 17.01.2019 | M. Vrousai | Olympiakos Piraeus | — | Loan |
| 02.01.2019 | F. Pardo | Olympiakos Piraeus | — | N/A |
| 03.11.2018 | K. Ansarifard | Olympiakos Piraeus | Nottingham Forest | Free |
| 09.09.2018 | C. Karadais | Olympiakos Piraeus | — | N/A |
| 06.09.2018 | André Martins | Olympiakos Piraeus | Legia Warszawa | Free |