PLAYER
POS
DOB
CLUB
SINCE
CO
Cristian Ojeda
FW
22.01.1999 (27)
Argentina
UTC2024
FO
Francisco Ortega
MF
19.03.1999 (27)
Argentina
Olympiakos2023
CO
Con Ouzounidis
DF
08.10.1999 (27)
Australia
Esbjerg fB2021
BO
Benjamin Ožegović
GK
09.08.1999 (27)
Austria Liefering2024
DO
Denis Omic
DF
09.04.1999 (27)
AustriaRetired
—
AO
Abou Ouattara
MF
26.12.1999 (27)
Burkina Faso
Sheriff2022
DO
Djibril Ouattara
FW
19.09.1999 (27)
Burkina Faso
RS Berkane2018
IO
Ismahila Ouédraogo
MF
05.11.1999 (27)
Burkina Faso OB2025
AO
Alexandre Obambot
MF
14.02.1999 (27)
Congo
Saint-Pryvé Saint-Hilaire2019
HO
Harvy Ossété
MF
18.08.1999 (27)
Congo
Saint-Éloi Lupopo2022
MO
Mohamed Ouattara
DF
28.06.1999 (27)
Ivory Coast
Al-Ain2023
AO
Armando Obispo
DF
05.03.1999 (27)
Curaçao
PSV Eindhoven2018
JO
Justin Ogenia
DF
05.02.1999 (27)
Curaçao Helmond Sport2024
JO
Jens Odgaard
FW
31.03.1999 (27)
Denmark
Bologna2024
JO
Jeppe Okkels
MF
27.07.1999 (27)
Denmark
Djurgårdens IF2025
KO
Keelan O'Connell
MF
30.11.1999 (27)
England Weymouth2022
MO
Mariano Ondo
DF
29.06.1999 (†)
Equatorial GuineaDeceased
—
LO
Loïc Owono
GK
19.09.1999 (27)
Gabon Vita Club2024
AO
Aaron Opoku
MF
28.03.1999 (27)
Germany Eintracht Braunschweig2026
DO
David Otto
FW
03.03.1999 (27)
Germany Viktoria Köln2025
KO
Kwame Opoku
FW
08.05.1999 (27)
Ghana Asante Kotoko2024
DO
Dara O'Shea
DF
04.03.1999 (27)
Ireland Ipswich Town2024
DO
Darragh O'Connor
DF
05.08.1999 (27)
Ireland
Raith Rovers2025 (Loan)
TO
Thomas O'Connor
DF
21.04.1999 (27)
Ireland Peterborough United2025 (Loan)
WO
Warren O'Hora
DF
19.04.1999 (27)
Ireland Hibernian2024
MO
Marco Olivieri
FW
30.06.1999 (27)
Italy Cesena FC2025
KO
Kanji Okunuki
MF
11.08.1999 (27)
Japan Gamba Osaka2025
KO
Keisuke Osako
GK
28.07.1999 (27)
Japan Sanfrecce Hiroshima2018
RO
Randy Emeka Obi
FW
30.04.1999 (27)
JapanFree Agent
—
SO
Sho Omori
MF
19.08.1999 (27)
Japan Mito HollyHock2025
TO
Takuya Ogiwara
DF
23.11.1999 (27)
Japan Urawa Red Diamonds2018
YO
Yuya Oki
GK
22.08.1999 (27)
Japan Shimizu S-Pulse2024
BO
Benson Omala
FW
01.01.1999 (27)
Kenya Gor Mahia2020
CO
Clarke Oduor
MF
25.06.1999 (27)
Kenya Grimsby Town2025 (Loan)
OO
Ovella Ochieng
MF
23.12.1999 (27)
Kenya Nairobi United2025
SO
Se-Hun Oh
DF
15.01.1999 (27)
South Korea Shimizu S-Pulse2026 (Loan)
JO
Justin Ospelt
GK
07.09.1999 (27)
Liechtenstein Sportfreunde Siegen2025
JO
Jan Ostrowski
MF
14.04.1999 (27)
Luxembourg Luxembourg City2020
MO
Michael Omosanya
FW
15.12.1999 (27)
Luxembourg
Olympique Charleroi2026 (Loan)
SO
Shady Oukhadda
MF
17.01.1999 (27)
Morocco Casertana2025
EO
Efraín Orona
DF
22.02.1999 (27)
Mexico Santos Laguna2026
MO
Milutin Osmajić
MF
25.07.1999 (27)
Montenegro Preston North End2023
MO
Mönkh-Orgil Okrhon
DF
30.01.1999 (27)
Mongolia Deren2015
DO
Deabeas Owusu-Sekyere
FW
04.11.1999 (27)
Netherlands
Shenzhen Peng City2026
TO
Tyrone Owusu
MF
05.03.1999 (27)
Netherlands Telstar2024
WO
Walid Ould-Chikh
MF
06.11.1999 (27)
Netherlands Heracles Almelo2025 (Loan)
AO
Adebola Oluwo
DF
19.11.1999 (27)
Nigeria Salford City2025
AO
Amas Obasogie
GK
27.12.1999 (27)
Nigeria
Singida Black Stars2025
AO
Aniekeme Okon
MF
08.05.1999 (27)
Nigeria Rivers United2024
BO
Bruno Onyemaechi
MF
03.04.1999 (27)
Nigeria Olympiakos2025