| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Anael Tetsud | 1 | |
| Anderl Heckmair | 1 |
German mountaineer and guide. First ascentionist of the 1938 Route on the North Face of the Eiger, sometimes known as the Heckmair route as he lead the majority of the hard climbing. He fought on the eastern front in World War Two and survived to return to climbing and working as a guide post-war. |
| Anderson Bouton | 1 | |
| Anderson Bouton | 1 | |
| Andi Stull | 1 | |
| Andrea Locatelli | 1 | |
| Andreas Hofherr | 1 | |
| Andreas Klarström | 1 | |
| Andreas Kupke | 1 | |
| Andrew Clark | 1 | |
| Andrew Hammond | 1 | |
| Andrew Kim | 1 | |
| Andrew Rothner | 1 | |
| Andrew Woodward | 1 | |
| Andrine Ask Tverlid | 1 | |
| Andy Barker | 1 | |
| Andy Burgess | 1 | |
| Andy Cowley | 1 | |
| Andy Edgar | 1 | |
| Andy Grieve | 1 |