PLAYER
POS
DOB
CLUB
SINCE
GO
Guillermo Ochoa
GK
13.07.1985 (41)
Mexico
AEL Limassol2025
RO
Ricardo Osorio
MF
30.03.1980 (46)
MexicoRetired
—
OO
Oguchi Onyewu
DF
13.05.1982 (44)
United StatesRetired
—
PO
Pat Onstad
GK
13.01.1968 (58)
CanadaRetired
—
JO
John O'Brien
MF
29.08.1977 (49)
United StatesRetired
—
OO
Olivier Occéan
FW
23.10.1981 (45)
CanadaRetired
—
TO
Tani Oluwaseyi
FW
15.05.2000 (26)
Canada
Villarreal2025
AO
Andrew Ornoch
MF
21.08.1985 (41)
CanadaRetired
—
LO
Luis Olivas
DF
10.02.2000 (26)
Mexico Atlante2026 (Loan)
NO
Noble Okello
MF
20.07.2000 (26)
Canada Phoenix Rising2025
MO
Matthew Olosunde
DF
07.03.1998 (28)
United StatesFree Agent
—
OO
Owen Otasowie
DF
06.01.2001 (25)
United StatesFree Agent
—
AO
Abuchi Obinwa
MF
15.01.1997 (29)
United StatesRetired
—
AO
Adam Ozeri
MF
07.03.1998 (28)
United StatesFree Agent
—
AO
Adonija Ouanda
FW
30.04.2005 (21)
Canada
Slovácko2026 (Loan)
AO
Alfonso Ocampo-Chavez
FW
25.03.2002 (24)
United StatesFree Agent
—
BO
Babajide Ogunbiyi
DF
30.12.1986 (40)
United StatesRetired
—
BO
Ben Olsen
MF
03.05.1977 (49)
United StatesRetired
—
CO
Chrisotopher Thór Oatman
MF
23.09.1998 (28)
CanadaRetired
—
CO
Conor O'Brien
MF
20.10.1988 (38)
United StatesRetired
—
DO
Dominic Oppong
MF
21.01.1986 (40)
CanadaRetired
—
EO
Easton Ongaro
FW
05.06.1998 (28)
Canada
Novara2024
JO
Jaziel Orozco
DF
02.06.2004 (22)
United States St. Louis City2025
JO
Jorge Oropeza
MF
04.03.1983 (43)
MexicoRetired
—
JO
Juan Adriel Ochoa
MF
06.04.1987 (39)
MexicoRetired
—
MO
Matthew O'Connor
MF
29.04.1984 (42)
CanadaRetired
—
RO
Riley O'Neill
FW
09.09.1985 (41)
CanadaRetired
—
SO
Sean Okoli
FW
03.02.1993 (33)
United StatesRetired
—
SO
Shane O'Neill
DF
02.09.1993 (33)
United StatesFree Agent
—
WO
Will Orben
FW
30.03.1974 (52)
United StatesRetired
—
XO
Xanti Oyharçabal
MF
15.02.2007 (19)
United States Athletic Bilbao Juvenil2025
YO
Yılmaz Orhan
FW
13.03.1955 (71)
United StatesRetired
—