| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 0 | Yamel Olivas Solis | Standardized | Spanish | Clackamas, Multnomah, Washington, Yamhill |
| 0 | Laura Ann Olson | Master | English | Clackamas, Marion, Multnomah, Polk, Yamhill |
| 19 | Kim (Kiki) Omoto | Master | English | Benton |
| 1 | LISSET ONEILL | Community | English, Spanish | Multnomah |
| 1 | Nancy Louise Orem | Master | English | All |
| 1 | RAUL DAVID OROZCO FUENTES | Master | English, Spanish | Benton, Linn, Marion, Polk |
| 0 | Kay Guadalupe Ortega | Standardized | English, Spanish | Jackson, Jefferson, Josephine, Klamath, Malheur, Marion, Multnomah, Polk |
| 0 | ELENA ESMERALDA ORTIZ-ROBLES | Community | Spanish | Hood River, Multnomah, Wasco |
| 0 | CINDY RAE OVERSTREET | Master | English | Clackamas, Clatsop, Columbia, Multnomah, Washington |
| 0 | KARISSA LYNN PALMER | Master | English | All |
| 4 | NORMA E PANTOJA | Master | Spanish | Jackson, Josephine |
| 0 | MONSERRAT PANTOJA-RAMIREZ | Standardized | English, Spanish | Marion, Polk |
| 0 | TARA PAPANDREW | Specialty Master | English | All |
| 0 | Nichole Paradis Pangburn | Specialty Master | English | All |
| 0 | Delcie Vyonne Paredes | Master | English | Hood River, Jefferson, Sherman, Wasco |
| 0 | Vania M Parente | Standardized | English, Spanish | Clackamas, Multnomah, Washington |
| 0 | KATELYN ELIZABETH PARISI | Master | English | All |
| 0 | Olga V. Parker | Standardized | English, Russian | Clackamas, Multnomah |
| 3 | WILL PARNELL | Master | English | All |
| 1 | Kelley Traylor Parosa | Master | English | Marion, Polk |