clubs sportifs
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Oriveden Ponnistus | Organisation | 4 | 0.3 |
| Orión Fútbol Club | Type De Sport | 8 | 0.0 |
| Orlando City Sc | Type De Sport | 11 | 0.7 |
| Orlando City Soccer Club | Type De Sport | 41 | 35.2 |
| Orlando Pirates Fc | Type De Sport | 44 | 32.7 |
| Orlando Pirates Football Club Windhoek | Type De Sport | 11 | 0.3 |
| Orlando Sundogs | Type De Sport | 3 | 0.0 |
| Ormi Patras | Organisation | 4 | 0.0 |
| Orrell Rufc | Organisation | 4 | 0.0 |
| Ortec Nesselande Rotterdam | Organisation | 7 | 0.1 |
| Orthodox Club | Type De Sport | 1 | 0.0 |
| Oruro Royal | Type De Sport | 9 | 0.3 |
| Orvietana Calcio | Type De Sport | 5 | 0.1 |
| Oryx Douala | Type De Sport | 22 | 5.6 |
| Oryx Fc de Yopougon | Type De Sport | 2 | 0.6 |
| Osasco Audax | Type De Sport | 3 | 0.0 |
| Osasco Voleibol Clube | Organisation | 11 | 1.8 |
| Osc Bremerhaven | Type De Sport | 7 | 0.3 |
| Osg Baden-baden | Organisation | 3 | 0.3 |
| Osi Volleyball | Organisation | 1 | 0.0 |
| Oslo Football Académie | Type De Sport | 2 | 0.0 |
| Oslo Volley | Organisation | 4 | 0.3 |
| Oslo-studentenes Il | Organisation | 3 | 0.2 |
| Osotsapa Saraburi Football Club | Type De Sport | 9 | 0.0 |
| Ospreys | Organisation | 18 | 18.4 |
| Ospreys de North Florida | Organisation | 4 | 0.6 |
| Oststeinbeker Sv | Organisation | 3 | 0.6 |
| Osv Hanovre | Type De Sport | 6 | 0.2 |
| Otago Rfu | Organisation | 4 | 3.5 |
| Otago United Football Club | Type De Sport | 17 | 0.2 |
| Othellos Athienou Fc | Type De Sport | 15 | 0.7 |
| Otp Oulu | Organisation | 9 | 0.2 |
| Ottawa Fury Fc | Type De Sport | 16 | 8.6 |
| Ottawa Rugby League | Organisation | 2 | 0.1 |
| Ouanaminthe Fc | Type De Sport | 6 | 0.2 |
| Oud-heverlee Louvain | Type De Sport | 35 | 29.5 |
| Ougrée Neupré Union Liège | Organisation | 1 | 0.4 |
| Oulun Palloseura | Type De Sport | 16 | 0.6 |
| Oural Iekaterinbourg | Type De Sport | 48 | 10.1 |
| Ouralan Elista | Type De Sport | 19 | 0.6 |
| Ouralets Nijni Taguil | Type De Sport | 6 | 0.0 |
| Ouralotchka Iekaterinbourg | Organisation | 14 | 1.6 |
| Outlaws de Denver | Organisation | 3 | 1.4 |
| Outrage de Kalamazoo | Type De Sport | 5 | 0.3 |
| Owls de Florida Atlantic | Organisation | 5 | 1.1 |
| Owls de Kennesaw State | Organisation | 5 | 0.0 |
| Owls de Rice | Organisation | 8 | 1.0 |
| Owls de Temple | Organisation | 5 | 1.5 |
| Oxford City F.c. | Type De Sport | 17 | 1.3 |
| Oxford United Football Club | Type De Sport | 42 | 16.1 |