Fútbol Equipos que empiezan por Ö.
- Ovarense
- Operario Fc Mt Women
- OFK Napredak Markovac
- Offenbacher Kickers Women
- Oud Heuverlee Leuven Women
- Odense Q II (Wom)
- Oltrepo FC
- Odense Bk Ii Women
- OB Odense II W.
- Once Deportivo Ahuachapan Reserves
- Operario Lagoa
- Olimpico Litoral
- Oyonesa (Women)
- OFK Sofia 1992 U19
- Oriental La Paz
- OFC Sofia U19
- Oltrepo FBC
- Olympique Rovenain (U 19)
- Oliveira De Frades
- Os Gavionenses
- Osasuna (Women)
- Olympia Bobrov
- Orzel Marszowice
- Oviedo Moderno Women
- Olimpia Gherla W
- Olympic Charleroi CF
- Ogura, Kosuke
- Oliveira, Goncalo
- Oleksandria U19
- OFC Kom Berkovitsa
- OFK Beograd (U 19)
- Odra Wodzislaw
- Oregon Tech University
- Oriental (U 19)
- Our Lady Of Lake University
- OFK Sindjelic Nis U19
- Ong, Yew Sin/Teo, Ee Yi
- O Elvas CAD U19
- Old Dominion Monarchs (Wom)
- Oissel
- Oriente Petrolero (N)
- OM AL Qutain
- Old Veste 54
- Olde Veste'54
- Oddor Meanchey Province
- Odds U19
- Olympic Star Cluj (Women)
- Olimpic Star Cluj Napoca
- Olympico Golubovci
- Osterakers United FK