PLAYER
POS
DOB
CLUB
SINCE
MO
Mikel Oyarzabal
MF
21.04.1997 (29)
Spain Real Sociedad2015
DO
Dani Olmo
MF
07.05.1998 (28)
Spain Barcelona2024
EO
Esteban Obiang
DF
07.05.1998 (28)
Equatorial Guinea
Argeș Pitești2023
PO
Pedro Obiang
MF
27.03.1992 (34)
Equatorial Guinea
Monza2025
FO
Ferran Olivella
DF
22.06.1936 (†)
SpainDeceased
—
SO
Salomón Obama
FW
04.02.2000 (26)
Equatorial Guinea
Tlaxcala2025
AO
Antonio Olmo
DF
18.01.1954 (72)
SpainRetired
—
JO
Jorge Otero
DF
28.01.1969 (57)
SpainRetired
—
CO
Charles Ondo
DF
22.10.2003 (23)
Equatorial Guinea
Portland Timbers 22025
PO
Pablo Orbaiz
MF
06.02.1979 (47)
SpainRetired
—
ÁO
Álvaro Odriozola
DF
14.12.1995 (31)
Spain Real Sociedad2023
JO
Jonny Otto
DF
03.03.1994 (32)
Spain Alavés2025
JO
José Manuel Ochotorena
GK
16.01.1961 (†)
SpainDeceased
—
AO
Aarón Ochoa
MF
18.04.2007 (19)
Ireland Málaga2023
AO
Adrián Ortolá
GK
20.08.1993 (33)
Spain
EA Guingamp2025
AO
Aimar Oroz
MF
27.11.2001 (25)
Spain Osasuna2019
AO
Alain Oyarzun
MF
27.09.1993 (33)
Spain
Rajasthan United2024
AO
Alfredo Ortuño
FW
21.01.1991 (35)
Spain FC Cartagena2021
AO
Andrea Orlandi
MF
03.08.1984 (42)
SpainRetired
—
AO
Antonio Otegui
MF
07.03.1998 (28)
Spain
Inter d'Escaldes2025
AO
Armiche Ortega
MF
12.06.1988 (38)
Spain Arucas2025
AO
Arnau Ortiz
MF
29.10.2001 (25)
Spain
Śląsk Wrocław2024
BO
Bilal Ouacharaf
DF
09.05.2002 (24)
Morocco Talavera de la Reina2025
BO
Brian Oliván
DF
01.04.1994 (32)
Spain Sporting Gijón2025
CO
César Ortiz
DF
30.01.1989 (37)
SpainRetired
—
DO
Dani Ojeda
FW
03.12.1994 (32)
Spain Huesca2025
DO
Derik Osede
DF
21.02.1993 (33)
SpainFree Agent
—
EO
Edu Oriol
MF
05.11.1986 (40)
SpainRetired
—
EO
Eloy Olaya
FW
10.07.1964 (62)
SpainRetired
—
FO
Fernando Obama
DF
07.04.1985 (41)
Equatorial GuineaRetired
—
HO
Hodei Oleaga
GK
29.12.1996 (30)
Spain Sámano2025
JO
Jan Oliveras
DF
07.07.2004 (22)
Spain Celta Fortuna2025
JO
Jandro Orellana
MF
07.08.2000 (26)
Spain
Estoril Praia2024
JO
Javi Ontiveros
MF
09.09.1997 (29)
Spain Cádiz2024
JO
Joan Oriol
DF
05.11.1986 (40)
SpainRetired
—
JO
Jon Ander Olasagasti
MF
16.08.2000 (26)
Spain Levante2025
JO
Jordan O'Doherty
MF
14.10.1997 (29)
Australia East Bengal2022
JO
Jorge Ortiz
MF
25.04.1992 (34)
Spain Mumbai City2025
JO
Juanma Ortiz
MF
01.03.1982 (44)
SpainRetired
—
JO
Juanto Ortuño
FW
11.02.1992 (34)
Spain Real Murcia2026
KO
Kevin Carlos Omoruyi
FW
10.04.2001 (25)
Spain OGC Nice2025
KO
Kiko Olivas
DF
21.08.1988 (38)
SpainFree Agent
—
KO
Koldo Obieta
FW
08.10.1993 (33)
Spain Kerala Blasters2025
MO
Manuel Onwu
FW
11.01.1988 (38)
SpainRetired
—
MO
Miguel Olavide
MF
05.03.1996 (30)
SpainRetired
—
OO
Odei Onaindia
DF
07.12.1989 (37)
Spain Amorebieta2025
OO
Oier Olazábal
GK
14.09.1989 (37)
SpainFree Agent
—
PO
Pedro Ortiz
MF
19.08.2000 (26)
Spain Córdoba2025
RO
Rafa Obrador
DF
24.02.2004 (22)
Spain Torino2026 (Loan)
RO
Roberto Olabe
MF
05.05.1996 (30)
Spain
Turan Tovuz2025