| Oba,
Kiyoka - Shibuyaku, JAPAN |
| O'Connor,
Allison - Diamond Bar, CA |
| O'Dell,
Dalen - Laguna Beach, CA |
| Officer,
Bradley - Shoreline, WA |
| Okada,
Karen - Bellevue, WA |
| Okeson,
Makenna - Anchorage, AK |
| Olafsdottir,
Lilja - Ona, WV |
| O'leary,
Matthew - Olympia, WA |
| Olexer,
Caitlyn - Renton, WA |
| Oliver,
Jaeda - Lakewood, CO |
| Olson,
Crosby - Glendora, CA |
| Olson,
Mariah - Albion, NE |
| Olthoff,
Peter - Seattle, WA |
| Omann,
Isabella - Milford, KS |
| Ontiveros,
Rebekah - San Jose, CA |
| Orosz,
Tallulah - Sacramento, CA |
| Orre,
Ashley - Pleasant Hill, OR |
| Ortiz Velazquez,
Anahi - El Sobrante, CA |
| Oschmann,
Kaley - Hastings, MN |
| Otto,
Chloe - Granite Falls, WA |
| Ovena,
Antonio - Seattle, WA |
| Overton,
Landry - San Antonio, TX |
| Owen,
Sarah - Shoreline, WA |
| Owsley,
Eric - Tonasket, WA |