| Obungen,
Fritz - Auburn, WA |
| O'Callaghan,
Robert - Costa Mesa, CA |
| Ochoa,
Kiersten - Oceanside, CA |
| Ochs,
Sophia - University Pl, WA |
| Oddy,
Miranda - Simi Valley, CA |
| Ohlsen,
Emma - Liberty Lake, WA |
| Ohmiya,
Yurino - Nishinomiya-city, JAPAN |
| Olson,
Crosby - Glendora, CA |
| Olson,
Elizabeth - Spanaway, WA |
| Olson,
Mariah - Albion, NE |
| Onyema,
Kaobimdi - Auburn, WA |
| Orellana,
Michael - Burien, WA |
| Ortega,
Ariel - Portland, OR |
| Ortega,
Martina - Redmond, WA |
| O'Rullian,
Berkeley - Rexburg, ID |
| Osburn,
Jenna - Wenatchee, WA |
| Oscarson,
Audrey - Bellingham, WA |
| Osman,
Aisha - Burien, WA |
| Ovenell,
Griffin - Lynnwood, WA |
| Overton,
Landry - San Antonio, TX |
| Owen,
Jonathan - Valrico, FL |
| Owusu,
Brizette - Lynnwood, WA |
| Ozkan,
Sera - Sammamish, WA |