| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 0 | Cherri Archer | Master | English | Marion, Polk, Yamhill |
| 3 | Lynn B Arnold | Specialty Master | English | All |
| 6 | Jory Janet Aronson | Master | English | All |
| 0 | Margarita Bibiana Arroyo | Master | English, Spanish | All |
| 0 | Antonio Arroyo-Rojas | Standardized | English, Spanish | Hood River, Multnomah, Wasco |
| 6 | Olga N Arshilovich | Master | English, Russian | Marion, Polk, Yamhill |
| 0 | Dione Marie Ashby | Master | English | All |
| 11 | Teresa Louise Ashford | Master | English | All |
| 2 | Kim Lian Ashley | Master | English | All |
| 6 | Sara Ashou | Master | English, Spanish | Clackamas, Multnomah, Washington |