| Name | Nation |
|---|---|
| O'Bee, Kirk | USA |
| O'Grady, Stuart | AUS |
| Odriozola Mugarza, Jon | ESP |
| Olano Manzano, Abraham | ESP |
| Omloop, Wim | BEL |
| Omloop, Geert | BEL |
| Ongarato, Rodolfo | ITA |
| Ongarato, Alberto | ITA |
| Ordowski, Volker | GER |
| Oriol, Christophe | FRA |
| Ortenzi, Gian Mario | ITA |
| Osa Eizaguirre, Aitor | ESP |
| Osa Eizaguirre, Unai | ESP |
| Oschwald, Wolfgang | GER |
| Ostergaard, Jan Erik | DEN |
| Otero Gomez, Gustavo Miguel | ESP |
| Otto, Rafael | GER |
| Otxoa Palacios, Ricardo | ESP |
| Otxoa Palacios, Javier | ESP |
| Outschakov, Serguei | UKR |
| Ouwerkerk, Samuel | AUS |
