| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 25 | Kim (Kiki) Omoto | Master | English | Benton |
| 2 | CHRISTINA SUZANNE ONEILL | Master | English | All |
| 3 | LISSET ONEILL | Master | English, Spanish | Multnomah |
| 1 | Nancy L Orem | Master | English | All |
| 1 | RAUL DAVID OROZCO FUENTES | Master | English, Spanish | Benton, Linn, Marion, Polk |
| 0 | ANA LAURA ORTEGA | Standardized | Hood River, Wasco | |
| 0 | Kay Guadalupe Ortega | Standardized | English, Spanish | Jackson, Jefferson, Josephine, Klamath |
| 0 | MIRIAM NANCY ORTIZ VARGAS | Standardized | Crook, Deschutes, Jefferson | |
| 0 | ELENA ESMERALDA ORTIZ-ROBLES | Community | Spanish | Hood River, Multnomah, Wasco |
| 0 | WYNNE LOUISE OSBORNE | Community | English | Clackamas, Clatsop, Crook, Deschutes, Jefferson, Tillamook, Washington |
| 0 | CINDY RAE OVERSTREET | Master | English | Clackamas, Clatsop, Columbia, Multnomah, Washington |
| 0 | Angela Mary Oviedo | Standardized | English | Malheur |
| 0 | RUTH OXMAN | English | ||
| 0 | SARA PACKER | Not given | English | Multnomah |
| 0 | SHELLY Annette PADDOCK | Community | English | Clackamas, Marion, Multnomah, Polk, Washington, Yamhill |
| 0 | KARISSA LYNN PALMER | Master | English | All |
| 0 | LINDA PANGBURN | Standardized | English | |
| 0 | NORMA JEAN PANOWICZ | Standardized | English | Clackamas, Gilliam, Hood River, Multnomah, Sherman, Wasco |
| 5 | NORMA E PANTOJA | Master | Spanish | Jackson, Josephine |
| 0 | MONSERRAT PANTOJA-RAMIREZ | Standardized | English, Spanish | Marion, Polk |