| Name | Type | Language | Counties |
|---|---|---|---|
| JUDY CLIFFORD | Standardized | English | Washington |
| Kendra Janine Coates | Master | English | All |
| DEBORAH P. COEHLO | Master | English | All |
| ANDREA COFFEE | Community | English | Lane |
| CHRISTINA COFFEY | Standardized | Benton, Linn, Marion, Polk, Yamhill | |
| ELISABETH MENZEL COHEN | Standardized | English | Coos, Curry |
| TONYA COKER | Master | English | All |
| NELL COLBURN | Standardized | English | Multnomah |
| Anna Marin Cole | Standardized | English | Coos, Curry |
| SHARON JOYCE COLE | Standardized | English | Tillamook |
| 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 |
| DIGNA ALCANTARA COLWELL | Standardized | Douglas | |
| Mary Isabel Conde-Rivera | Standardized | English, Spanish | Multnomah |
| JANET JEAN CONDIT-NICHOLAS | Not given | English | Lincoln |
| CHRISTIE CONNARD | Standardized | English | Linn |