| Name | Type | Language | Counties |
|---|---|---|---|
| EOLIA CALDERON | Not given | English | |
| IDA CALDERON | Standardized | Clackamas, Marion, Multnomah, Washington, Yamhill | |
| Kristen Naylor Calderon | Standardized | English | Multnomah |
| Caitlin Denise Calip | Master | English | Marion, Polk, Yamhill |
| SHIRLEY ADELL CALONDER | Master | English | All |
| BERTHA AURORA CAMACHO | Community | English, Spanish | Clackamas, Curry, Klamath, Lane, Lincoln, Marion, Multnomah, Sherman, Tillamook, Washington, Yamhill |
| MARIA ANTONIA CAMARENA | Community | Spanish | |
| KETERINNE KARLA CAMEY RAQUEC | Master | English, Spanish | Marion, Polk, Yamhill |
| CHERRY MARIE CAMONAYAN | Master | English | All |
| CRYSTAL CAMPBELL | Master | English | Marion, Polk, Yamhill |
| DANA A. CAMPBELL | Standardized | English | All |
| Heather Regina Campbell | Community | English | Malheur |
| Helen Kay Campbell | Master | English | All |
| PATRICIA ELAINE CAMPBELL | Standardized | English | Marion, Polk |
| SUZANNA CAMPBELL | Master | English | Multnomah |
| ADRIANA HOLGUIN CANAS | Standardized | English | Washington |
| CYNTHIA LOUISE CANEPA | Master | English | All |
| EMILY CANIBANO | Master | English | Clackamas, Columbia, Hood River, Multnomah, Washington |
| LISSETTE JOANA CANNIZZARO | Master | English, Spanish | Multnomah |
| Anita Carabantes Arreola | Master | Spanish | Clackamas, Hood River, Multnomah |