| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Mike Williams | 1 | |
| Milena Muhlen | 1 | |
| Miles Adamson | 1 | |
| Mim Fox | 1 | |
| Mim Tiller | 1 | |
| Minoru Nakano | 1 | |
| Mirit Heyden | 1 | |
| Mito Shimokawa | 1 | |
| Mizuki Tajima | 1 | |
| Molly Mitchell | 1 | |
| Monica McKeown | 1 | |
| Monique Forestier | 1 | |
| Morley Wood | 1 | |
| Morty Smith | 1 | |
| M. Owen | 1 | |
| Nadine Wallner | 1 | |
| Näilé Meignan | 1 | |
| Naoki Komine | 1 | |
| Nao Monchois | 1 | |
| Nasser Muñumer | 1 |