Fußball Mannschaften, die mit Ö beginnen
- Olympic FC Brisbane Women
- Olstykke (Women)
- OFK Buducnost Dudovica
- OSPA Oulunsalo
- OFK Dorostol 2003 Silistra
- Open Goal Broomhill Glasgow
- Oryol
- Okzhetpes (R)
- Olympie Zdice
- Olde Veste 54
- Oratorio U20
- Olympia FC Warriors (R)
- OKS Ostrow Wielkopolski
- Oriental (Uru)
- Olmos, G/Panova, A
- O Connor Knights FC U23
- Offenbacher Kickers U19
- Olympyakos De Alcasser
- Opava II
- Obazz
- 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