| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Rachel Carr | 1 | |
| Rachel Goldman | 1 | |
| Rachel Morrison-Elliot | 1 | |
| Rajko Zajc | 1 | |
| Ramon Marin | 1 | References |
| Ray Evans | 1 | |
| Raymond Leininger | 1 | |
| Rebecca Kinghorn | 1 | |
| Reini Scherer | 1 | References |
| Rémy Bergasse | 1 | |
| René Ferlet | 1 | References |
| Richard Bingham | 1 | |
| Richard Davies | 1 | |
| Richard Grant | 1 | |
| Richard Hession | 1 | |
| Richie Betts | 1 | |
| Rick Accomazzo | 1 | |
| Rick Allen | 1 | References[1] https://www.thebmc.co.uk/tributes-rick-allen-dies-in-k2-avalanche |
| Rob D'Anastasio | 1 | |
| Robert Durran | 1 |