| Name | Type | Language | Counties |
|---|---|---|---|
| Maria Adilene Anguiano Luna Galvan | Master | English, Spanish | Marion, Polk, Yamhill |
| Meghan Jennifer Gwin Anson | Master | English | All |
| REBEKAH AOTSCH | Master | English | Clackamas, Columbia, Hood River, Multnomah, Tillamook, Washington |
| AIMEE COLLEEN APT | Master | English | Benton, Clackamas, Clatsop, Columbia, Coos, Crook, Deschutes, Douglas, Hood River, Jefferson, Lane, Lincoln, Linn, Marion, Multnomah, Tillamook, Umatilla, Union, Wasco, Washington, Yamhill |
| Erin Hennessey Arant | Specialty Master | English | All |
| PAMELA THOMPSON ARBOGAST | Master | English | Coos, Crook, Curry, Deschutes, Douglas, Jackson, Jefferson, Josephine, Klamath, Lake, Lane, Lincoln |
| Cherri Archer | Master | English | Marion, Polk, Yamhill |
| JORJIE PACIFIC ARDEN | Community | English | Benton, Douglas, Lane, Linn |
| BARBARA LYNN ARENA-CRANDALL | Master | English | All |
| Lynn B Arnold | Specialty Master | English | All |
| Jory Janet Aronson | Master | English | All |
| ZHULMA ZORAIDA ARROBO | Master | English, Spanish | All |
| MARGARITA (Magie) BIBIANA ARROYO | Master | English, Spanish | All |
| Antonio Arroyo-Rojas | Standardized | English, Spanish | Clackamas, Multnomah |
| OLGA ARSHILOVICH | Master | English, Russian | Marion, Polk, Yamhill |
| Bianela Fabiola Arteta Perez | Master | English, Spanish | All |
| TERESA LOUISE ASHFORD | Master | English | All |
| Sara Ashou | Master | English, Spanish | Clackamas, Multnomah, Washington |
| Valeria C Atanacio | Master | English, Spanish | All |
| Haley Atherton | Master | English | All |