| O'Brochta,
Allyson - Redmond, WA |
| O'Connor,
Bailey - Eagle Point, OR |
| Odegard,
Tatum - Mercer Island, WA |
| Oh,
Elizabeth - Arcadia, CA |
| Oh,
Seeyoung - Wenatchee, WA |
| O'Hara,
Jack - Medford, OR |
| Okamura,
Alexa - Redmond, WA |
| Okazaki,
Tad - Kahului, HI |
| O'Kinsella,
Connor - Stanwood, WA |
| Okuna,
Erin - Pearl City, HI |
| Olander,
Amber - Arlington, WA |
| Oldenburger,
Johanna - Kirkland, WA |
| Olivas,
Daniel - Phoenix, AZ |
| Olsby,
Julia - Woodinville, WA |
| Olson,
Anna - Everson, WA |
| Olson,
Emily - Bothell, WA |
| Olson,
Ingrid - Mountlake Terrace, WA |
| Olson,
Jacob - Glendora, CA |
| Olson,
Kailey - Lynden, WA |
| Olson,
Katherine - Redlands, CA |
| Olson,
Nicole - Rancho Santa Margarita, CA |
| Olszewsky,
Kilian - Olympia, WA |
| O'Neill,
Meghan - Gig Harbor, WA |
| Onishi,
Lynne - Mukilteo, WA |
| Opre,
Jordan - Irvine, CA |
| Orndorf,
Alexis - Duvall, WA |
| Ortiz,
Alyssa - Phoenix, AZ |
| Osborne,
Helene - Seattle, WA |
| Osterbaan,
Kyra - Hudsonville, MI |
| Ott,
Sarah - Lynnwood, WA |