| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Guillaume Lebret | 1 | |
| Guillaume Mignard | 1 | |
| Guy Meadows | 1 | |
| Guy Robertson | 1 | |
| Gwen Morgan | 1 | |
| Gwilym Tossell | 1 | |
| Hank Mather | 1 | |
| Hannah French | 1 | |
| Hannah Williams | 1 | |
| Han Seuran | 1 | |
| Hans Florine | 1 | |
| Hari Gardner | 1 | |
| Harriet Hall | 1 | |
| Harry Clarke | 1 | |
| Harry Leeds | 1 | |
| Harry Robertson | 1 | |
| Heather Florence | 1 | |
| Heinrich Harrer | 1 |
Austrian mountaineer, writer, and explorer. First ascentionist of the 1938 route on the North Face of the Eiger, described in his book The White Spider. Early member of the SA and briefly pre-war member of the SS. Interned in India at the start of World War Two, his escapes to Tibet and life there are described in Seven Years in Tibet. |
| Heinz Zak | 1 | |
| Helen Gillett | 1 |