| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 6 | Jory Janet Aronson | Master | English | All |
| 0 | MONA ARRITOLA | Not given | English | Union |
| 0 | Margarita Bibiana Arroyo | Master | English, Spanish | All |
| 0 | Antonio Arroyo-Rojas | Standardized | English, Spanish | Hood River, Multnomah, Wasco |
| 6 | OLGA ARSHILOVICH | Master | English, Russian | Marion, Polk, Yamhill |
| 0 | Bianela Fabiola Arteta Perez | Community | English, Spanish | All |
| 0 | ALICIA DAWNSTAR ASHBY | Standardized | English | Clackamas, Multnomah, Washington |
| 0 | DIONE MARIE ASHBY | Master | English | All |
| 0 | Sherian Louise Asher | Standardized | English | Deschutes, Gilliam, Grant, Jefferson, Sherman, Umatilla, Wheeler |
| 13 | Teresa Louise Ashford | Master | English | All |
| 2 | Kim Lian Ashley | Master | English | All |
| 7 | Sara Ashou | Master | English, Spanish | Clackamas, Multnomah, Washington |
| 0 | CARMEN MARIA ASHWORTH | Standardized | Lane | |
| 0 | Valeria C Atanacio | Master | English, Spanish | All |
| 0 | Haley Atherton | Master | English | All |
| 0 | CAROLYN MARY AUSBORN | Community | English | Benton, Clackamas, Deschutes, Douglas, Hood River, Lane, Marion, Multnomah, Polk, Washington, Yamhill |
| 11 | Dalia Avello | Master | English, Spanish | All |
| 0 | MONICA ARLEN AVILA | Standardized | Spanish | Umatilla |
| 0 | AMANDA ROSE AVILES | Community | English | Josephine |
| 0 | Fabiola Azcue | Standardized | Spanish | Marion |