2018 Winter Olympische Spelen - Atleten
| Atleet | Sport |
|---|---|
 Daria Obratov | Rodelen |
 Nadya Ochner | Skiing |
 Takuro Oda | Schaatsen |
 Meryeta Odine | Skiing |
| Hikaru Oe | Skiing |
 Katrin Ofner | Skiing |
| Takako Oguchi | Bobsleigh |
 Dominique Ohaco | Skiing |
 Victor Öhling Norberg | Skiing |
| Yuri Okubo | Skiing |
 Marc Oliveras | Skiing |
 Justin Olsen | Bobsleigh |
| Madison Olsen | Skiing |
| Matts Olsson | Skiing |
 Toby Olubi | Bobsleigh |
 Nikolay Olyunin | Skiing |
| Igor Omelin | Skiing |
 Akuoma Omeoga | Bobsleigh |
| Miyabi Onitsuka | Skiing |
| Ayana Onozuka | Skiing |
| Ngozi Onwumere | Bobsleigh |
 Silje Opseth | Skiing |
| Alexandra Orlova | Skiing |
 Andrii Orlyk | Skiing |
| Manuel Osborne-Paradis | Skiing |