| Link | Location |
---|
 | Nadezhda Onishchuk | Москва, Russia |
 | Toshihiro Ono | Tokyo, Japan |
 | Ronald Oomen | Deventer, Netherlands |
 | Martijn Oost | Brussels, Belgium |
 | Erik Oosterhuis | Bergschenhoek, Netherlands |
 | Frey Oosterlinck | Harelbeke, Belgium |
 | Albert Oosthuizen | Johannesburg, South Africa |
 | Piotr Opalacz | Kraków, Poland |
 | Pavel Oparin | Almaty, Kazakhstan |
 | Douglas Opfer | Houston, Texas, United States |
 | Bas Opgelder | Hoofddorp, Netherlands |
 | Heino Ophey | Karlsruhe, Germany |
 | Luca Oppedisano | Turin, Italy |
 | Thomas Oppermann | Berlin, Germany |
 | Gabriela Oprea | Bucharest, Romania |