| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 279 | Tammy S Marino | Master | English | All |
| 1 | Ahmed Marjan | Specialty Master | English | All |
| 5 | Beatriz Marron-Molina | Master | English, Spanish | All |
| 0 | RHIANNON MARTIN | Master | English | Clackamas, Multnomah |
| 0 | TERESA LYNETTE MARTIN | Master | English | Jefferson |
| 0 | Fernando Martinez | Community | English, Spanish | All |
| 1 | Kathryn Elizabeth Martinez | Community | English | All |
| 4 | THERESA MARTINEZ | Master | English | All |
| 5 | Lisa Michelle Maruna-Tynan | Master | English, Other | All |
| 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 |
| 86 | Joyce Deana McCoy | Master | English | All |