| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 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 |
| 0 | Stacia Ann Clark | Master | English, Spanish | All |
| 0 | Tamara Dawn Clark | Master | English | Lane, Linn, Multnomah |
| 0 | DEZIRE CONTENT CLARKE MEINDERSEE | Community | English | All |
| 10 | MYRA MIHELICH CLASSEN | Master | English | Benton, Clackamas, Columbia, Hood River, Lane, Lincoln, Linn, Marion, Multnomah, Polk, Tillamook, Washington, Yamhill |
| 1 | MOLLY CLEMENT | Master | English | Jackson, Josephine |
| 0 | JUDY CLIFFORD | Standardized | English | Washington |
| 0 | Kendra Janine Coates | Master | English | All |
| 3 | DEBORAH P. COEHLO | Master | English | All |
| 0 | ANDREA COFFEE | Community | English | Lane |
| 0 | CHRISTINA COFFEY | Standardized | Benton, Linn, Marion, Polk, Yamhill | |
| 0 | ELISABETH MENZEL COHEN | Standardized | English | Coos, Curry |
| 0 | TONYA COKER | Master | English | All |
| 0 | NELL COLBURN | Standardized | English | Multnomah |
| 0 | Anna Marin Cole | Standardized | English | Coos, Curry |
| 0 | SHARON JOYCE COLE | Standardized | English | Tillamook |