| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Max Ayrton | 0 | |
| Max Didier | 0 | |
| Max Falleti | 0 | |
| Max Maurice Strumia | 0 | |
| Max Sedlmeyer | 0 | |
| Max Smerek | 0 | |
| Maya Madere | 0 | |
| Meagan Martin | 0 | |
| Melissa Arnot | 0 | |
| Melissa Strong | 0 | |
| Mercedes Pollmeier | 0 | |
| Michael Burke | 0 | |
| Michael Hauss | 0 | |
| Michael Kennedy | 0 |
Editor of Climbing magazine from 1974 to 1998. |
| Michael Levy | 0 | |
| Michael Reardon | 0 |
References |
| Michael Rosato | 0 | |
| Michael Schreiber | 0 | |
| Michel Croz | 0 | |
| Michelle Murphy | 0 |