| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Manny Quintana | 2 | |
| Mark Anderson | 2 | |
| Mark McGowan | 2 | |
| Mark Pugh-Williams | 2 | |
| Mark Stokes | 2 | |
| Marley Farquharson | 2 | |
| Martin Crook | 2 | |
| Martine Limstrand | 2 | |
| Martin Švec | 2 | |
| Mary Jenner | 2 | |
| Matteo Della Bordella | 2 | |
| Matteo Marobin | 2 | |
| Matt Goode | 2 | |
| Mattias Braach-Maksvytis | 2 | |
| Mattias Flodin | 2 | |
| Mauro Schwaszta | 2 | |
| Max Deelen | 2 | |
| Max Jones | 2 |
Tahoe-based climber and later elite mountain biker. Partnered Mark Hudon on a number of early free or nearly free "as free as can be" ascents of big walls in the late 1970s-early 1980s. |
| Mayan Smith-Gobat | 2 | |
| Maya Patel | 2 |