| Name | Type | Language | Counties |
|---|---|---|---|
| AMBER COCHRAN | Standardized | ||
| ANDREA COFFEE | Master | 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 |
| REBEKAH CONLEY | Standardized |