| Name | Type | Language | Counties |
|---|---|---|---|
| WYN CHEUNG | Master | English, Chinese | Clackamas, Hood River, Multnomah, Washington |
| Jamie Cho | Master | English, Chinese, Other | All |
| ELEANOR CHRISTOPHER | Master | English | Clackamas, Multnomah |
| NATALIYA V CHUBAROVA | Master | English, Russian | All |
| JAIME CIECALONE | Community | English | Lane |
| Teresa Ann Cisneros | Community | English, Spanish | Marion, Polk, Yamhill |
| Stacia Ann Clark | Master | English, Spanish | All |
| Tamara Dawn Clark | Master | English | Lane, Linn, Multnomah |
| DEZIRE CONTENT CLARKE MEINDERSEE | Master | English | All |
| MOLLY CLEMENT | Master | English | Jackson, Josephine |
| Kendra Janine Coates | Master | English | All |
| ANDREA COFFEE | Community | English | Lane |
| TONYA COKER | Master | English | All |
| BRANDY COLEMAN | Master | English | All |
| PILAR ELENA COLLAZO | Master | English, Spanish | Clackamas, Hood River, Multnomah, Washington |
| MELINDA ROSE COLLIER | Master | English | Klamath, Lake |
| Andrea Maria Collins | Master | English | Grant, Morrow, Umatilla, Union |
| EMILY SUSAN COLLINS | Standardized | English | All |
| Lori Colvin | Master | English | Crook, Deschutes, Jefferson |
| Michael (Michael) Ames Connor | Master | English | All |