| Onkaparinga Saints |
Sports Acrobatics |
South Australia, Australia |
| Onkaparinga Swimming Club |
Swimming |
South Australia, Australia |
| Onley Rugby Union Football Club |
Running |
South East England, United Kingdom |
| Onslow Gymnastic Club |
Hockey |
Wellington, New Zealand |
| Open-Wheel Racing Car Club |
MTB |
South Australia, Australia |
| Ophir RFC |
Running |
Northern Ireland, United Kingdom |
| Oracles Softball Club |
Sports Acrobatics |
New South Wales, Australia |
| Orana Dragon Boat Club |
Dragon Boat Racing |
Australia |
| Orange & District Football Association |
Go Karting |
New South Wales, Australia |
| Orange and District Softball |
Sports Acrobatics |
New South Wales, Australia |
| Orange Animals |
Sports Acrobatics |
South West England, United Kingdom |
| Orange Crushers |
Sports Acrobatics |
South West England, United Kingdom |
| Orange Cyms Hockey Club |
Horse Racing |
New South Wales, Australia |
| Orange Kart Club |
MTB |
New South Wales, Australia |
| Orange Runners Club |
Athletics |
Australia |
