| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Lily Fitzgibbon | 1 | |
| Lily Keal | 1 | |
| Linda Sjödin | 1 | |
| Linus Raatz | 1 | |
| Lionel Clerc | 1 | |
| Lionel Terray | 1 | |
| Livia Jakob | 1 | |
| Livvy Gent | 1 | |
| L J Griffin | 1 | |
| Logan Barber | 1 | |
| Louis Gundolf | 1 | |
| Louis Jones | 1 | |
| Lou Wilkinson | 1 | |
| Luca Bertacco | 1 | |
| Lucas Parker | 1 | |
| Lucien Guillou | 1 | |
| Lucile Saurel | 1 | |
| Lucy Ellis | 1 | |
| Lucy Stirling | 1 | |
| Ludo Delmotte | 1 |