| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Martin Švec | 1 | |
| Mary Varale | 1 | References[1] With Emilio Comici, 1930s https://www.facebook.com/climbing.in.the.80s/photos/a.270388289694020/3481547141911436/ |
| Masoud Ghasemi | 1 | |
| Matej Sova | 1 | |
| Mathieu Ternant | 1 | |
| Matisse Almira-Colcombet | 1 | |
| Matt Bosley | 1 | |
| Matt Cox | 1 | |
| Matt Desantis | 1 | |
| Matteo Marobin | 1 | |
| Matteo Marrocchi | 1 | |
| Mattéo Soulé | 1 | |
| Matt Goode | 1 | |
| Mattias Braach-Maksvytis | 1 | |
| Matt Ward | 1 | |
| Maximilliano Piazza | 1 | |
| Max Raeuber | 1 | |
| Max Rose | 1 | |
| Max Smerek | 1 | |
| Mei Kotake | 1 |