| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Mike Kerzhner | 0 | |
| Mike Mortimer | 0 | |
| Mike Pearson | 0 | |
| Mike Pond | 0 | |
| Millican Dalton | 0 |
[1] https://www.ukclimbing.com/articles/features/millican_dalton_-_the_professor_of_adventure-13626 |
| Miranda Oakley | 0 | |
| Mo Beck | 0 | |
| Molly Beard | 0 | |
| Monique Forestier | 0 | |
| Morris Fontanari | 0 | |
| Motochika Nagao | 0 | |
| Murray Hamilton | 0 | |
| Nadim Siddiqui | 0 | |
| Naomi Guy | 0 | British champion in 1993, 1995 and 1996. |
| Nat Allen | 0 | References[1] https://www.mountain-heritage.org/blog/nat-allen-collection |
| Natasha Barnes | 0 | |
| Nate Drolet | 0 | |
| Nate Gold | 0 | |
| Nathan Brown | 0 | References[1] https://www.climbing.com/people/the-givers-nathan-brown-the-man-of-solo-action/ |
| Nathan Hoette | 0 |