| Name | Type | Language | Counties |
|---|---|---|---|
| Jennifer Michelle Cork | Master | English | Benton, Clatsop, Columbia, Lincoln, Linn, Marion, Multnomah, Polk, Tillamook, Washington, Yamhill |
| JODIE CORLESS | Not given | English | Marion |
| Estonia Latavia Cornett | Master | English | Clackamas, Multnomah, Washington |
| MARIA (Mayra) G CORONA | Master | English, Spanish | |
| Lorena Cortes Gonzalez | Standardized | English, Spanish | Morrow, Multnomah, Umatilla |
| Andrea Kay Cortese | Community | English | Clackamas, Hood River, Lane, Marion, Multnomah, Wasco, Washington |
| APRIL COTE | Community | English | Clackamas, Multnomah |
| Rochelle Alene Coulombe | Master | English | Clatsop, Columbia, Tillamook |
| CATHERINE COWLES | Not given | English | Lane |
| CATHERINE CRAFT | Standardized | English | Multnomah, Washington |
| KRISTEN B. CRAKES | Standardized | English | Deschutes |
| LINDA MARIE CRAVEN | Master | English | All |
| DAWN CRAWFORD | Master | English | All |
| Janis Irene Crawford | Specialty Master | English | All |
| SUE CRAWFORD | Community | English | All |
| RUTH CRAWMER | Community | English | Crook, Deschutes |
| CHELSEA RUTHERFORD CREST | Master | English | Multnomah |
| Janet Faye Crews | Not given | English | Lane |
| SUSAN CRISMON | Standardized | English | Klamath |
| KATHY EILEEN CRISP | Master | English | Clackamas, Marion, Multnomah, Washington |