| Climb Name | Type | Grade | # Ascents Recorded | Notes | Exclude Reason |
|---|---|---|---|---|---|
| Mako | Boulder problem | 8A | 1 | ||
| Malbogies | Trad climb | HVS | 1 | ||
| Malcolm X | Sport route | 8b+ | 1 | ||
| Malc's Traverse | Boulder problem | 8B | 1 | Contrary to the name and most guidebooks, Steve McClure did the first ascent. The first 8B/V13 on Gritstone! |
|
| Maldita María | Sport route | 8b+ | 1 | ||
| Malice in Wonderland | Trad climb | E4 | 1 | ||
| Malvazija (Pre-Break) | Sport route | 8b+ | 1 | ||
| Mamajama | Sport route | 9a+ (approx) | 1 | ||
| Mammoth | Trad climb | E5 | 1 | ||
| Mammoth Direct | Trad climb | E6 | 1 | ||
| Manchester Dogs | Boulder problem | 8A | 1 | The first eighth grade boulder problem in Wales. |
|
| Mandarin | Trad climb | E2 | 1 | ||
| Mangarbo Natural | Sport route | 9a+ | 1 | Avoids using chipped holds. |
|
| Mango Tango | Sport route | 8b+ | 1 | ||
| Manhattan Highrise | Trad climb | E7 | 1 | ||
| Man Machine | Boulder problem | 8B | 1 | ||
| Man of Cow | Boulder problem | 7C | 1 | ||
| Mappō | Boulder problem | 8C | 1 | ||
| Maracanazo | Sport route | 9a | 1 | The first 9a in Argentina. |
|
| Marbellous | Trad climb | E8 | 1 |