| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 0 | KATHLEEN MASEK | Standardized | English | Hood River, Wasco |
| 0 | BRENDA MASSIE | Master | English | Gilliam, Hood River, Sherman, Wasco, Wheeler |
| 0 | SHAWN BRUMBACH MASSINGALE | Master | English | Douglas |
| 0 | BETTY MASSONI | Not given | English | Benton |
| 0 | VICTORIA Ortencia MATA LOPEZ | Standardized | English | Tillamook |
| 0 | Adriane Michele Matherne | English | All | |
| 0 | LOREEN MATHIAS | Not given | English | |
| 1 | LISA DARLENE MATHIS | Master | English | Crook, Deschutes, Jefferson |
| 1 | VELDA MATSDORF | Community | English | Benton, Clackamas, Douglas, Jackson, Josephine, Lane, Linn, Marion, Multnomah, Polk, Washington, Yamhill |
| 0 | SUE MATTERS | Standardized | English | Crook, Deschutes, Jefferson |
| 5 | Miren Mattson | Master | English | Benton, Lane, Linn, Marion |
| 0 | SUSAN MAXWELL | Standardized | English | Marion, Polk, Yamhill |
| 0 | GAYLA JEANNE MAY | Standardized | English | Multnomah |
| 0 | SHARON CAROLE MAY | Master | English | Jackson |
| 0 | Heidi Jo Mayberry | Master | English | Umatilla, Union |
| 0 | TINA MAYFIELD | Community | English | Benton, Coos, Lane, Lincoln, Linn, Marion, Polk, Tillamook, Yamhill |
| 0 | Massene Mboup | Master | English, Other | All |
| 0 | ERIC JOHN MCALINN | Master | English | Clackamas, Multnomah |
| 2 | JENIFER ANN MCALLISTER | Master | English | Benton, Lincoln, Linn |
| 3 | HAILEE MCBURNEY | Master | English | All |