| O'Connor,
Allison - Diamond Bar, CA |
| O'Connor,
Bailey - Eagle Point, OR |
| Oddo,
Gabrielle - Alta Loma, CA |
| Odegard,
Tatum - Mercer Island, WA |
| Okada,
Karen - Bellevue, WA |
| Okeson,
Makenna - Anchorage, AK |
| O'leary,
Matthew - Olympia, WA |
| Olson,
Anna - Everson, WA |
| Olson,
Ingrid - Mountlake Terrace, WA |
| Olson,
Jacob - Glendora, CA |
| Olson,
Lauren - Redlands, CA |
| Olund,
Kenji - Lake Forest Park, WA |
| Omann,
Isabella - Milford, KS |
| Onishchenko,
Miroslava - Kent, WA |
| Onishi,
Lynne - Mukilteo, WA |
| Orndorf,
Alexis - Duvall, WA |
| Otto,
Chloe - Granite Falls, WA |
| Overcashier,
Katelyn - Half Moon Bay, CA |
| Owen,
Renee - Edmonds, WA |
| Owen,
Sarah - Shoreline, WA |