| Link | Location |
|---|---|
| Diana Oeller | Graz, Austria |
| Olga Oganesyan | Montreal, Canada |
| Ken Ogata | Kanagawa, Japan |
| Ryoji Ogata | Tokyo, Japan |
| Haruka Ogawa | Tokyo, Japan |
| Ryu Okada | Tokyo, Japan |
| Satoshi Okami | Tokyo, Japan |
| Akari Okamoto | Tokyo, Japan |
| Kosuke Okamoto | Tokyo, Japan |
| Kana Okamura | Tokyo, Japan |
| Chris Okamuro | Houston, Texas, United States |
| Yuta Okawara | Tokyo, Japan |
| Chioma Okereke | New York, New York, United States |
| Masataka Okesaku | Tokyo, Japan |
| Alevtina Okhrimenko | Moscow, Russian Federation |
