Name
Olympiakos Piraeus
Founded
1925 (95 years ago)
Ground
Name: Stadio Georgios Karaiskáki
Capacity: 33296
Capacity: 33296
Head coach
Squad
| # | Player | Date of birth | Position | Height | Weight |
| 1 | 17/01/1993 | Goalkeeper | 192 cm | 84 kg | |
| 16 | 28/11/1991 | Goalkeeper | 185 cm | 75 kg | |
| 81 | 08/11/2002 | Goalkeeper | 193 cm | ||
| 3 | 04/04/1994 | Defender | 189 cm | 84 kg | |
| 14 | 05/12/1991 | Defender | 179 cm | 73 kg | |
| 15 | 23/03/2000 | Defender | 185 cm | 76 kg | |
| 20 | 02/07/1993 | Defender | 180 cm | 70 kg | |
| 21 | 12/05/1996 | Defender | 177 cm | 70 kg | |
| 23 | 23/07/1995 | Defender | 175 cm | 71 kg | |
| 24 | 11/11/1995 | Defender | 192 cm | 84 kg | |
| 26 | 10/06/1988 | Defender | 195 cm | 93 kg | |
| 34 | 03/12/1984 | Defender | 188 cm | 85 kg | |
| 35 | 10/06/1985 | Defender | 185 cm | 80 kg | |
| 66 | 14/09/1995 | Defender | 192 cm | 83 kg | |
| 76 | 21/04/1993 | Defender | 180 cm | 69 kg | |
| 2 | 25/11/1987 | Midfielder | 174 cm | 68 kg | |
| 4 | 28/02/1997 | Midfielder | 182 cm | 75 kg | |
| 5 | 05/04/1993 | Midfielder | 186 cm | 82 kg | |
| 7 | 16/10/1992 | Midfielder | 183 cm | 70 kg | |
| 8 | 05/04/1991 | Midfielder | 179 cm | 77 kg | |
| 10 | 21/10/1995 | Midfielder | 165 cm | 58 kg | |
| 18 | 26/05/1994 | Midfielder | 179 cm | 75 kg | |
| 19 | 01/01/1994 | Midfielder | 184 cm | 76 kg | |
| 28 | 28/09/1984 | Midfielder | 167 cm | 58 kg | |
| 77 | 19/12/1986 | Midfielder | 183 cm | 78 kg | |
| 97 | 05/08/1997 | Midfielder | 178 cm | 68 kg | |
| 6 | 08/09/1994 | Attacker | 179 cm | 71 kg | |
| 9 | 12/07/1990 | Attacker | 182 cm | 77 kg | |
| 11 | 03/02/1987 | Attacker | 183 cm | 70 kg | |
| 22 | 09/03/1999 | Attacker | 170 cm | 65 kg |
Current season's transfers in
| Player | Date | Left / Joined | Fee |
| 31.08.19 | R. Central Olympiakos Piraeus | € 3.3M | |
| 31.08.19 |  Sporting CP Olympiakos Piraeus | Loan | |
| 31.08.19 |  Lille Olympiakos Piraeus | Loan | |
| 09.07.19 |  Partizan Olympiakos Piraeus | € 1.5M | |
| 06.07.19 |  Villarreal Olympiakos Piraeus | € 4.5M | |
| 06.07.19 | Al Duhail Olympiakos Piraeus | Free | |
 M. Siampanis | 05.07.19 | PAOK Olympiakos Piraeus | Free |
| 01.07.19 | Radnički Niš Olympiakos Piraeus | € 550K | |
 H. Cuypers | 01.07.19 | Ergotelis Olympiakos Piraeus | Free |
| 01.07.19 |  LASK Olympiakos Piraeus | € 500K | |
 F. Durmishaj | 01.07.19 | Panionios Olympiakos Piraeus | Free |
 G. Masouras | 01.07.19 | Panionios Olympiakos Piraeus | Unknown |
 D. Nikolaou | 01.07.19 | Empoli Olympiakos Piraeus | Unknown |
 G. Manthatis | 01.07.19 | Panionios Olympiakos Piraeus | Unknown |
 Igor Carioca | 01.07.19 | AEK Olympiakos Piraeus | Unknown |
 Nahuel Leiva | 01.07.19 | La Coruña Olympiakos Piraeus | Unknown |
 A. Keita | 01.07.19 | Panionios Olympiakos Piraeus | Unknown |
 M. Saliakas | 01.07.19 | Kissamikos Olympiakos Piraeus | Unknown |
 D. Manos | 01.07.19 | Giannina Olympiakos Piraeus | Unknown |
| 01.07.19 |  Reims Olympiakos Piraeus | Unknown | |
| 01.07.19 | Fenerbahçe Olympiakos Piraeus | Free | |
| 18.06.19 | Nottm Forest Olympiakos Piraeus | Unknown | |
 Y. Lodygin | 29.01.19 | Zenit Olympiakos Piraeus | Unknown |
| 29.01.19 | Brisbane Olympiakos Piraeus | Free | |
 F. Soldano | 03.01.19 | Unión Olympiakos Piraeus | € 1.1M |
| 01.01.19 | Panionios Olympiakos Piraeus | Unknown |
Current season's transfers out
| Player | Date | Left / Joined | Fee |
F. Durmishaj | 30.08.19 | Olympiakos Piraeus WB | Loan |
 T. Androutsos | 30.08.19 | Olympiakos Piraeus Atromitos | Loan |
Nahuel Leiva | 30.08.19 | Olympiakos Piraeus Tenerife | Unknown |
G. Masouras | 28.08.19 | Olympiakos Piraeus Panionios | Loan |
| 20.08.19 | Olympiakos PiraeusPartizan | Free | |
 N. Peios | 18.08.19 | Olympiakos Piraeus Ergotelis | Loan |
H. Cuypers | 17.08.19 | Olympiakos Piraeus Ajaccio | Loan |
A. Keita | 17.08.19 | Olympiakos Piraeus Ajaccio | Loan |
F. Soldano | 12.08.19 | Olympiakos Piraeus Boca Juniors | Loan |
M. Siampanis | 11.08.19 | Olympiakos Piraeus Nottm Forest | Loan |
Igor Carioca | 03.08.19 | Olympiakos Piraeus Osijek | Loan |
Y. Lodygin | 03.08.19 | Olympiakos Piraeus Gazişehir | Free |
G. Manthatis | 25.07.19 | Olympiakos Piraeus Anorthosis | Loan |
M. Saliakas | 12.07.19 | Olympiakos Piraeus Lamia | Free |
D. Nikolaou | 05.07.19 | Olympiakos Piraeus Empoli | € 3.5M |
D. Manos | 05.07.19 | Olympiakos Piraeus OFI | Loan |
 Y. Touré | 03.07.19 | Olympiakos Piraeus Huanghai | Unknown |
| 01.07.19 | Olympiakos Piraeus Monaco | Unknown | |
 Q. Laçi | 01.07.19 | Olympiakos Piraeus Ajaccio | Unknown |
| 01.07.19 | Olympiakos Piraeus Sporting Braga | Unknown | |
| 01.07.19 | Olympiakos PiraeusReims | € 4M | |
 Roderick | 01.07.19 | Olympiakos Piraeus Wolverhampton Wanderers | Unknown |
 A. Gianniotis | 21.06.19 | Olympiakos Piraeus Maccabi TA | Free |
| 05.02.19 | Olympiakos Piraeus Aris | Free | |
Nahuel Leiva | 31.01.19 | Olympiakos Piraeus La Coruña | Loan |
D. Nikolaou | 28.01.19 | Olympiakos Piraeus Empoli | Loan |
D. Manos | 19.01.19 | Olympiakos Piraeus Giannina | Loan |
| 17.01.19 | Olympiakos Piraeus Willem II | Loan | |
 F. Pardo | 02.01.19 | Olympiakos Piraeus Toluca | Unknown |
G. Masouras | 01.01.19 | Olympiakos Piraeus Panionios | Loan |
