Oţelul

Romania

Othellos

Cyprus

Otôho d'Oyo

Congo

Otrant-Olympic

Montenegro

Ottawa Rapid W

Canada

Ottos Rangers

Antigua-and-Barbuda

Ouakam

Senegal

Oud-Heverlee Leuven II

Belgium

Oudenaarde

Belgium

Oued Akbou

Algeria

Ourense CF

Spain

Ovarense

Portugal

Oviedo

Spain

Oxford City

England

Oxford Sunnyside

Northern-Ireland

Oxford United

England

Oxford United U18

England

Oxford United W

Oyonesa

Spain

Ózd Sajóvölgye

Hungary

Ozgon

Kyrgyzstan

ØB

Denmark

Ørn Horten

Norway

P-Iirot

Finland