| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 0 | BRENDA MASSIE | Master | English | Gilliam, Hood River, Sherman, Wasco, Wheeler |
| 0 | SHAWN BRUMBACH MASSINGALE | Master | English | Douglas |
| 0 | Adriane Michele Matherne | English | All | |
| 1 | LISA DARLENE MATHIS | Master | English | Crook, Deschutes, Jefferson |
| 5 | Miren Mattson | Master | English | Benton, Lane, Linn, Marion |
| 0 | Massene Mboup | Master | English, Other | All |
| 2 | JENIFER ANN MCALLISTER | Master | English | Benton, Lincoln, Linn |
| 3 | HAILEE MCBURNEY | Master | English | All |
| 0 | Jessica Lyn McClintic | Master | English | All |
| 0 | NATALYA MCCOMAS | Master | English | Lane |
| 98 | Joyce Deana McCoy | Master | English | All |
| 2 | Sara Beth McCutchen | English | All | |
| 0 | Alisa Ann McDonald | Master | English | Douglas |
| 0 | BROOKE JEAN MCDONALD | Community | English | All |
| 0 | KATHLEEN MARY MCDONNELL | Master | English | Benton, Lane, Lincoln |
| 0 | RHONDA SUE MCDOWALL | Master | English | All |
| 0 | Danielle McFarland | Master | English | Clackamas, Hood River, Multnomah, Washington |
| 0 | Kristen E. McKee | Community | English, Spanish | Benton, Clackamas, Columbia, Deschutes, Hood River, Jefferson, Lane, Lincoln, Linn, Marion, Multnomah, Polk, Tillamook, Wasco, Washington, Yamhill |
| 6 | DANIELLE MARIE MCKIDDY | Master | English | Douglas, Klamath, Lake |
| 0 | Yolanda Denise McKinney | Community | English | Multnomah |