| Name | Type | Language | Counties |
|---|---|---|---|
| Elizabeth Anne Caravaca | Master | English | Clackamas, Hood River, Lane, Lincoln, Marion, Multnomah, Polk, Washington |
| Daniela Cardenas | Master | Spanish | All |
| JESSIE DAWN CARPENTER | Master | English | All |
| Diana Carrillo | Master | English, Spanish | Baker, Benton, Deschutes, Jefferson, Linn, Malheur, Marion, Yamhill |
| 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 |
| JULIE CATT | Master | English | Clatsop, Columbia, Multnomah, Tillamook, Washington |
| PATRICIA CAVANAUGH | Master | English | All |
| Laurissa B Cervantes | Community | English | Hood River |
| CLAUDIA CERVANTES LOPEZ | Community | Spanish | Deschutes, Douglas, Jackson, Jefferson, Josephine, Klamath |
| Vanessa Lee Cham | Standardized | ||
| Emily Ruth Champlin | Master | English | All |
| JAZMIN TAMARA CHAMUL | Community | English | Jackson |
| 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 |
| Jamie Cho | Master | English, Chinese, Other | All |
| CARINA CHOUN-GARCIA | Master | English, Spanish | All |
| ELEANOR CHRISTOPHER | Master | English | Clackamas, Multnomah |
| NATALIYA V CHUBAROVA | Master | English, Russian | All |
| JAIME CIECALONE | Community | English | Lane |
| Teresa Ann Cisneros | Community | English, Spanish | Marion, Polk, Yamhill |
| Stacia Ann Clark | Master | English, Spanish | All |
| TAMARA DAWN CLARK | Master | English | Lane, Linn, Multnomah |
| DEZIRE CONTENT CLARKE MEINDERSEE | Master | English | All |
| MOLLY CLEMENT | Master | English | Jackson, Josephine |
| Kendra Janine Coates | Master | English | All |
| ANDREA COFFEE | Community | English | Lane |
| TONYA COKER | Master | English | All |
| 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 |
| REBEKAH CONLEY | Standardized | ||
| Michael (Michael) Ames Connor | Master | English | All |
| CLAUDIA CONTRERAS PETERS | Master | English, Spanish | All |
| VELVET COOLEY | Master | English | Clackamas, Multnomah, Tillamook, Washington |
| Chelsea Rene Coots | Master | English | Marion, Polk, Yamhill |