| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Henry Ritterpusch | 1 | |
| Herbert C. Boyd | 1 | |
| Herman Buhl | 1 |
Herman Buhl was an Austrian mountaineer most famous for his solo first ascent of Nanga Parbat in 1953 and being a member of the first team to summit Broad Peak in 1957. He died shortly after climbing Broad Peak while attempting to climb the nearby Chogolisa when he walker over a cornice in a storm triggering an avalanche which killed him. |
| Hermanni Suominen | 1 | |
| Hermann Schwaiger | 1 | |
| Hilmar Ómarsson | 1 | |
| Hirotaro Hoshina | 1 | |
| Hoa Pham | 1 | |
| Hoseok Lee | 1 | |
| Howard Lawledge | 1 | |
| Hunter Damiani | 1 | |
| Huntley Ingalls | 1 | |
| Huw Perkins | 1 | |
| Ian Butler | 1 | |
| Ian Caldwell | 1 | |
| Ian Cooksey | 1 | |
| Ian Henderson | 1 | |
| Ian Lloyd-Jones | 1 | |
| Ian MacDonald | 1 | |
| Ian Nicholson | 1 |