| Name | Type | Language | Counties |
|---|---|---|---|
| ADELA CARTNEGA | Standardized | English | Multnomah |
| GEORGE C CARTNER | Master | English | All |
| PATRICIA MAY CARTY | Standardized | English | Jackson, Josephine, Klamath, Lake |
| STACEY CASELLA | Master | English | All |
| AMANDA CASIAN | Community | Spanish | All |
| MARIELA CASTELLANOS | Community | English, Spanish | Lane |
| VIOLETA LOURDES CASTILLO | Community | English, Spanish | Multnomah, Washington |
| MERCEDES PAINE CASTLE | Master | English | All |
| PHYLLIS CASTLE | Master | English | Clatsop, Columbia, Tillamook |
| JULIE CATT | Master | English | Clatsop, Columbia, Multnomah, Tillamook, Washington |
| PATRICIA CAVANAUGH | Master | English | All |
| Kaltun Muse Caynan | Community | English, Somali | Multnomah, Washington |
| LESLIE CELESTIN | Master | English | Clackamas, Columbia, Hood River, Multnomah, Washington |
| Laurissa B Cervantes | Community | English | Hood River |
| CLAUDIA CERVANTES LOPEZ | Community | Spanish | Deschutes, Douglas, Jackson, Jefferson, Josephine, Klamath |
| DEEDA CHAMBERLAIN | Standardized | English | Marion |
| Emily Ruth Champlin | Master | English | All |
| JAZMIN TAMARA CHAMUL | Community | English | Jackson |
| JANE CLAIRE CHANDLER | Community | English | Baker |
| YIHYUN (Maggie) MAGGIE CHANG | Specialty Master | English, Chinese | Multnomah, Washington |
| Mae Leann Chao | Master | English, Other | Multnomah |
| LIANE ALANE CHAPPELL | Master | English | Clackamas, Clatsop, Columbia, Multnomah, Tillamook, Washington |
| DEZHINETTE CHARTRAND | Master | English | Clackamas, Columbia, Linn, Marion, Multnomah, Polk, Washington, Yamhill |
| Ambreen Chaudhary | Master | English | Marion, Polk, Washington, Yamhill |
| Minaz Chauthani | Master | English | All |
| JENNY ANN CHAVEZ | Master | English | Benton, Lincoln, Linn |
| MARICRUZ CHAVEZ REYES | Master | English, Spanish | All |
| Ya-Fang Cheng | Master | English, Chinese, Other | Clackamas, Marion, Polk |
| OLGA VLADIMIROVNA CHEREVATENKO | Specialty Master | English, Russian | All |
| WYN CHEUNG | Master | English, Chinese | Clackamas, Hood River, Multnomah, Washington |
| MICHALA CHITWOOD | Not given | English | Deschutes |
| Jamie Cho | Master | English, Chinese, Other | All |
| JENNIFER CHOBAN | Standardized | English | Washington |
| KATHRYN ANN CHRISTENSEN | Standardized | English | Clackamas, Lincoln, Multnomah, Tillamook, Washington |
| David Alan Christiansen | Specialty Community | English | All |
| ELEANOR CHRISTOPHER | Master | English | Clackamas, Multnomah |
| NATALIYA V CHUBAROVA | Master | English, Russian | All |
| BONNIE RUTH CHURCH | Standardized | English | Klamath |
| KRISTIN RENE CHURCH | Standardized | English | |
| MARGIE A. CICERRELLA | Standardized | English | Jackson |
| JAIME CIECALONE | Community | English | Lane |
| LINDA CINNAMOND | Not given | English | Multnomah |
| Teresa Ann Cisneros | Community | English, Spanish | Marion, Polk, Yamhill |
| AMY MCADAMS CLARK | Standardized | English | Multnomah |
| SIOBHAN CLARK | Community | English | Clackamas, Multnomah, Washington |
| Stacia Ann Clark | Master | English, Spanish | All |
| Tamara Dawn Clark | Master | English | Lane, Linn, Multnomah |
| DEZIRE CONTENT CLARKE MEINDERSEE | Master | English | All |
| MYRA MIHELICH CLASSEN | Master | English | Benton, Clackamas, Columbia, Hood River, Lane, Lincoln, Linn, Marion, Multnomah, Polk, Tillamook, Washington, Yamhill |
| MOLLY CLEMENT | Master | English | Jackson, Josephine |