| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Adam Walker | 1 | |
| Adlai Marquez | 1 | |
| Ådne Haugen | 1 | |
| Adrian Baxter | 1 | |
| Adrian Garlick | 1 | |
| Adrien Boulon | 1 | |
| A. Frazer | 1 | |
| Aiden Dunne | 1 | |
| Aitor Bárez | 1 | |
| Ajda Remskar | 1 | |
| Aj Flynn | 1 | |
| Ako Shillitoe | 1 | |
| Alan Moore | 1 | |
| Aleksandra Taistra | 1 | |
| Aleksej Jaruta | 1 | |
| Aleš Česen | 1 | |
| Alessandro Larcher | 1 | |
| Alessandro Manini | 1 | |
| Alexander Feichter | 1 | |
| Alexander Watt | 1 |