| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 63 | AOIFE ROSE MAGEE | Master | English | All |
| 2 | DAWN ROXANN (ROXANN) MALMBERG | Master | English | Morrow, Umatilla |
| 5 | SHANNON MALUSEVIC | Master | English | Multnomah, Washington |
| 0 | EPHREM MAMO | Master | English, Other | Clackamas, Multnomah, Washington |
| 0 | AVA P MANASCO | Master | English, Other | All |
| 0 | HILARY MANKOFSKY | Community | English | All |
| 0 | Alexis Nicole Mann | Community | English | Douglas, Klamath, Lake |
| 0 | CHRISTEN MARIE MANSUETTI | Community | English | Jackson, Josephine |
| 0 | Laura Maravilla | Master | English, Spanish | All |
| 1 | Sarah Marble | Master | English, Spanish | All |
| 0 | TALIA MARCUCCI OSITIS | Master | English | Clackamas, Marion, Multnomah, Polk, Washington |
| 0 | Jessica R. Marie | Standardized | English | Marion, Polk, Yamhill |
| 0 | JESSICA MARIE | Community | English | Lane |
| 279 | Tammy S Marino | Master | English | All |
| 1 | Ahmed Marjan | Specialty Master | English | All |
| 5 | Beatriz Marron-Molina | Master | English, Spanish | All |
| 0 | AUTUM BREA MARSH | Community | English | Clatsop, Columbia, Tillamook |
| 0 | Nicole Martin | Community | English | Douglas |
| 0 | RHIANNON MARTIN | Master | English | Clackamas, Multnomah |
| 0 | TERESA LYNETTE MARTIN | Master | English | Jefferson |
| 0 | FERNANDO MARTINEZ | Community | English, Spanish | All |
| 1 | KATHRYN MARTINEZ | Community | English | All |
| 4 | THERESA MARTINEZ | Master | English | All |
| 0 | Victoria Marie Martinez | Master | English | 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 |
| 100 | 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 |
| 0 | Laura Nix McLean | Master | English, Spanish | Clackamas, Multnomah |
| 5 | JENNIFER ABIGAIL COOPER MCMULLEN | Master | English, Spanish | Benton, Linn, Marion, Polk, Yamhill |
| 0 | MARY MCNAMEE | Community | English | Coos, Curry |
| 0 | CARRIE LEAGH MCNEES | Community | English | Lane |
| 0 | COLLEEN MEACHAM | Community | English | Clackamas, Multnomah, Washington, Yamhill |
| 3 | SANDRA MEADOS | Master | English | All |