PLAYER
POS
DOB
CLUB
SINCE
JO
John O'Shea
DF
30.04.1981 (45)
IrelandRetired
—
MO
Morten Olsen
DF
14.08.1949 (77)
DenmarkRetired
—
LO
Lars Olsen
DF
02.02.1961 (65)
DenmarkRetired
—
AO
Anton Ondruš
DF
27.03.1950 (76)
SlovakiaRetired
—
TO
Tornike Okriashvili
MF
26.02.1992 (34)
Georgia Gagra2025
KO
Kristoffer Olsson
MF
30.06.1995 (31)
SwedenFree Agent
—
SO
Sergey Ostapenko
FW
23.02.1986 (40)
KazakhstanRetired
—
IO
Ivan Obradović
DF
25.07.1988 (38)
SerbiaRetired
—
RO
Roman Ogaza
FW
17.11.1952 (74)
PolandRetired
—
RO
Rubin Okotie
FW
06.06.1987 (39)
AustriaRetired
—
AO
Antti Okkonen
DF
02.06.1982 (44)
FinlandRetired
—
NO
Nicolas Ouédec
FW
28.10.1971 (55)
FranceRetired
—
SO
Stefano Okaka
FW
09.08.1989 (37)
ItalyRetired
—
MO
Michael Omosanya
FW
15.12.1999 (27)
Luxembourg
Olympique Charleroi2026 (Loan)
JO
Jake O'Brien
DF
15.05.2001 (25)
Ireland
Everton2024
RO
Raul Opruț
DF
04.01.1998 (28)
Romania Dinamo București2025
AO
Alen Orman
DF
31.05.1978 (48)
AustriaRetired
—
DO
Dimitri Oberlin
FW
27.09.1997 (29)
Switzerland Sepsi OSK2024
JO
Jacob Ondrejka
FW
02.09.2002 (24)
Sweden Palermo2025
O
Orlando Sá
FW
26.05.1988 (38)
PortugalRetired
—
AO
Abdelhakim Omrani
MF
18.02.1991 (35)
France Forbach2025
AO
Ademola Ola-Adebomi
FW
03.09.2003 (23)
England WSG Tirol2025
AO
Adrián Ortolá
GK
20.08.1993 (33)
Spain EA Guingamp2025
AO
Aimé Omgba
MF
22.10.2002 (24)
Netherlands KAA Gent2024
DO
Dylan Ourega
MF
06.10.2004 (22)
France Westerlo2026
EO
Eli Ohana
FW
01.02.1964 (62)
IsraelRetired
—
EO
Emir Obuća
FW
11.12.1978 (48)
Bosnia and HerzegovinaRetired
—
EO
Emir Ortakaya
DF
22.06.2004 (22)
Turkey Çaykur Rizespor2026
EO
Enrik Ostrc
MF
21.06.2002 (24)
Slovenia Bravo2025
FO
Fabien Ourega
FW
07.12.1992 (34)
France
Kauno Žalgiris2025