Football teams
Olympique Rovenain U17
France
Olympique Rovenain U19
France
Om Mesr El Hadjadj
Algeria
Omagh Town W
Northern Ireland
Oman Club
Oman
Omarska
Bosnia and Herzegovina
Omega Kleszczów
Poland
Omega Sport Bucureşti
Romania
Omiš
Croatia
Omiya Ardija Ventus
Japan
Omladinac Zablaće
Serbia
Omoljica
Serbia
Omonia Nicosia W
Cyprus
OMS Ingelmunster
Belgium
Once Caldas W
Colombia
Onda
Spain
Ondalán
Spain
One Knoxville
USA
One Touch U18
World
Onehunga Mangere United
New Zealand
Onehunga Mangere W
New Zealand
Onehunga Sports W
New Zealand
ONS W
Finland
Onze Unidos
Cape Verde Islands
Opatów
Poland
Opava U19
Czech Republic
Operário
São Tomé e Príncipe
Operario AM
Brazil
Oranje Berlin
Germany
Oranje Nassau W
Netherlands
Oranke
Germany
Orbi II
Georgia
Orcasitas
Spain
Ordabasy W
Kazakhstan
Órdenes
Spain
Ordino
Andorra
Örebro Söder W
Sweden
Örebro U19
Sweden
Orel II
Russia
Orgaceño
Spain
Örgryte U21
Sweden
Oriental
Paraguay
Oriental Lisboa U19
Portugal
Origen
Panama
Orion W
Netherlands
Orkan Buczek
Poland
Orkney
Scotland
Orlando Pride W
USA
Orleans II
France
Orléans U19
France