| Climb Name | Type | Grade | # Ascents Recorded | Notes | Exclude Reason |
|---|---|---|---|---|---|
| Ossau Project | Boulder problem | 8B+ | 1 | ||
| Ôte-moi d'un Doigt | Boulder problem | 8B+ | 1 | ||
| Ouragan | Sport route | 8a | 1 | ||
| Our Father | Trad climb | E4 | 1 | Probably one of the hardest free climbs in the UK when Tom Proctor made the first ascent. So named because Geoff Birtles spoke the Lord's Prayer before attempting to second Tom Proctor on the first ascent. |
|
| Out for Blood | Trad climb | E9 | 1 | The pitches breakdown as E8 6c in to E9 7a, a substantial outing! |
|
| Out of My Tree | Sport route | 8a | 1 | ||
| Overdose | Sport route | 8a+ | 1 | ||
| Overhanging Bastion (pre-rockfall) | Trad climb | VS | 1 | ||
| Overlooked | Trad climb | E7 | 1 | ||
| Over the Moon | Sport route | 8a | 1 | ||
| Over the Mountain | Boulder problem | 7C+ | 1 | ||
| Over the Rainbow | Boulder problem | 8A | 1 | ||
| Over the Top | Trad climb | E7 | 1 | ||
| Oxbow | Boulder problem | 8B+ | 1 | ||
| Oyster | Sport route | 8a | 1 | ||
| Ozymandias | Boulder problem | 8B+ | 1 | ||
| Pagan Poetry Low | Boulder problem | 8B | 1 | ||
| Paklinski Waves | Sport route | 8c | 1 | ||
| Palabraz | Boulder problem | 8B | 1 | The first 8B in Mexico. |
|
| Pale Rider | Sport route | 6a | 1 |