| Name | Type | Language | Counties |
|---|---|---|---|
| SHAWN BRUMBACH MASSINGALE | Master | English | Douglas |
| BETTY MASSONI | Not given | English | Benton |
| VICTORIA Ortencia MATA LOPEZ | Standardized | English | Tillamook |
| LOREEN MATHIAS | Not given | English | |
| LISA DARLENE MATHIS | Master | English | Crook, Deschutes, Jefferson |
| VELDA MATSDORF | Community | English | Benton, Clackamas, Douglas, Jackson, Josephine, Lane, Linn, Marion, Multnomah, Polk, Washington, Yamhill |
| SUSANNE (Sue) MARIE MATTERS | Standardized | English | Crook, Deschutes, Jefferson |
| MIREN MATTSON | Master | English | Benton, Lane, Linn, Marion |
| SUSAN MAXWELL | Standardized | English | Marion, Polk, Yamhill |
| GAYLA JEANNE MAY | Standardized | English | Multnomah |