| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| 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 | |
| Ian Pitcairn | 1 | |
| Ian Riddington | 1 | |
| Ian Sykes | 1 | |
| Ian Turnbull | 1 | |
| Igor Koller | 1 | |
| Ila Tuunainen | 1 | |
| Imogen Horrocks | 1 | |
| Ion Martinez | 1 |