| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 1 | JULIE CATT | Master | English | Clatsop, Columbia, Multnomah, Tillamook, Washington |
| 3 | PATRICIA CAVANAUGH | Master | English | All |
| 0 | Kaltun Muse Caynan | Community | English, Somali | Multnomah, Washington |
| 1 | LESLIE CELESTIN | Master | English | Clackamas, Columbia, Hood River, Multnomah, Washington |
| 0 | Laurissa B Cervantes | Community | English | Hood River |
| 0 | CLAUDIA CERVANTES LOPEZ | Community | Spanish | Deschutes, Douglas, Jackson, Jefferson, Josephine, Klamath |
| 0 | DEEDA CHAMBERLAIN | Standardized | English | Marion |
| 10 | Emily Ruth Champlin | Master | English | All |
| 0 | JAZMIN TAMARA CHAMUL | Community | English | Jackson |
| 0 | JANE CLAIRE CHANDLER | Community | English | Baker |
| 2 | YIHYUN (Maggie) MAGGIE CHANG | Specialty Master | English, Chinese | Multnomah, Washington |
| 2 | Mae Leann Chao | Master | English, Other | Multnomah |
| 1 | LIANE ALANE CHAPPELL | Master | English | Clackamas, Clatsop, Columbia, Multnomah, Tillamook, Washington |
| 0 | Ambreen Chaudhary | Master | English | Marion, Polk, Washington, Yamhill |
| 15 | Minaz Chauthani | Master | English | All |
| 4 | JENNY ANN CHAVEZ | Master | English | Benton, Lincoln, Linn |
| 4 | MARICRUZ CHAVEZ REYES | Master | English, Spanish | All |
| 1 | Ya-Fang Cheng | Master | English, Chinese, Other | Clackamas, Marion, Polk |
| 0 | OLGA VLADIMIROVNA CHEREVATENKO | Specialty Master | English, Russian | All |
| 5 | WYN CHEUNG | Master | English, Chinese | Clackamas, Hood River, Multnomah, Washington |
| 0 | MICHALA CHITWOOD | Not given | English | Deschutes |
| 2 | Jamie Cho | Master | English, Chinese, Other | All |
| 0 | JENNIFER CHOBAN | Standardized | English | Washington |
| 0 | KATHRYN ANN CHRISTENSEN | Standardized | English | Clackamas, Lincoln, Multnomah, Tillamook, Washington |
| 0 | David Alan Christiansen | Specialty Community | English | All |
| 1 | ELEANOR CHRISTOPHER | Master | English | Clackamas, Multnomah |
| 0 | NATALIYA V CHUBAROVA | Master | English, Russian | All |
| 0 | BONNIE RUTH CHURCH | Standardized | English | Klamath |
| 0 | KRISTIN RENE CHURCH | Standardized | English | |
| 0 | MARGIE A. CICERRELLA | Standardized | English | Jackson |
| 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 |