| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 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 |
| 0 | ANITA MCCLANAHAN | Standardized | English | All |
| 0 | ERIN MARIE MCCLELLAN | Standardized | Clackamas | |
| 0 | Jessica Lyn McClintic | Master | English | All |
| 0 | CHRISTINE TUPPER MCCLURE | Standardized | English | Clatsop, Lincoln, Tillamook |
| 0 | NATALYA MCCOMAS | Master | English | Lane |
| 86 | Joyce Deana McCoy | Master | English | All |
| 0 | HEATHER MCCUEN | Not given | English | Multnomah |
| 0 | Mary Ann McCune | Community | English | Morrow, Umatilla |
| 2 | Sara Beth McCutchen | English | All | |
| 0 | Alisa Ann McDonald | Master | English | Douglas |
| 0 | MARIAN CLARE MCDONALD | Community | English | All |
| 0 | SUE MCDONALD | Standardized | English | Union |
| 0 | KATHLEEN MARY MCDONNELL | Master | English | Benton, Lane, Lincoln |
| 0 | RHONDA SUE MCDOWALL | Master | English | All |