| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 4 | JENNY ANN CHAVEZ | Master | English | Benton, Lincoln, Linn |
| 4 | MARICRUZ CHAVEZ REYES | Master | English, Spanish | All |
| 1 | Ya-Fang Cheng | Master | English, Traditional Chinese, Other | Clackamas, Marion, Polk |
| 0 | OLGA VLADIMIROVNA CHEREVATENKO | Specialty Master | English, Russian | All |
| 5 | WYN CHEUNG | Master | English, Traditional Chinese | Clackamas, Hood River, Multnomah, Washington |
| 0 | MICHALA CHITWOOD | Not given | English | Deschutes |
| 1 | Jamie Cho | Master | English, Traditional Chinese, Other | All |
| 0 | JENNIFER CHOBAN | Standardized | English | Washington |
| 0 | KATHRYN ANN CHRISTENSEN | Standardized | English | Clackamas, Lincoln, Multnomah, Tillamook, Washington |
| 0 | David Alan Christiansen | Specialty Community | English | All |
| 1 | ELEANOR CHRISTOPHER | Master | English | Clackamas, Multnomah |
| 0 | NATALIYA V CHUBAROVA | Master | English, Russian | All |
| 0 | BONNIE RUTH CHURCH | Standardized | English | Klamath |
| 0 | KRISTIN RENE CHURCH | Standardized | English | |
| 0 | MARGIE A. CICERRELLA | Standardized | English | Jackson |
| 0 | JAIME CIECALONE | Community | English | Lane |
| 0 | LINDA CINNAMOND | Not given | English | Multnomah |
| 0 | Teresa Ann Cisneros | Community | English, Spanish | Marion, Polk, Yamhill |
| 0 | AMY MCADAMS CLARK | Standardized | English | Multnomah |
| 0 | SIOBHAN CLARK | Community | English | Clackamas, Multnomah, Washington |