| Name | Type | Language | Counties |
|---|---|---|---|
| Sandra Marsili | Standardized | English | Clackamas, Multnomah, Washington |
| MIRANDA MARTIN | Community | English | Crook, Deschutes, Jefferson |
| Nicole Martin | Community | English | Douglas |
| RHIANNON MARTIN | Master | English | Clackamas, Multnomah |
| TAMI MARIE MARTIN | Standardized | English | Multnomah, Washington |
| TERESA LYNETTE MARTIN | Master | English | Jefferson |
| DONNA MARTINEZ | Standardized | English | Washington |
| FERNANDO MARTINEZ | Master | English, Spanish | All |
| KATHRYN MARTINEZ | Community | English | All |
| THERESA MARTINEZ | Master | English | All |
| LUZ ANTONIA MARTINEZ VALDEZ | Community | Spanish | All |
| DAWN K. MARTINI | Master | English | All |
| COLLEEN MARTINSON | Not given | English | Deschutes |
| JUDY LEE MARVAL | Standardized | English | Josephine |
| KATHLEEN MASEK | Standardized | English | Hood River, Wasco |
| BRENDA MASSIE | Master | English | Gilliam, Hood River, Sherman, Wasco, Wheeler |
| SHAWN BRUMBACH MASSINGALE | Master | English | Douglas |
| RONDA MASSON | Standardized | ||
| BETTY MASSONI | Not given | English | Benton |
| VICTORIA Ortencia MATA LOPEZ | Standardized | English | Tillamook |