Ordered by the number of ascents recorded.
| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Jon Bracey | 0 | |
| Jon de Montjoye | 0 | |
| Jon Griffith | 0 | |
| Jon Krakauer | 0 | |
| Jon Partridge | 0 | |
| Jon Ratcliffe | 0 | |
| Jörg Lehne | 0 |
Jörg was killed while bivouacing at the base of the Walker Spur when he was struck by rockfall. References[1] Mountain 6 (1969), page6 |
| Joseph Knubel | 0 | |
| Josh Champion | 0 | |
| Josh Hadley | 0 | |
| Josh Horsley | 0 |
Host of The Testpiece Podcast. |
| Josh Lowell | 0 | |
| Josh Mccoy | 0 | |
| Josie McKee | 0 | |
| Józef Nyka | 0 |
References[1] https://www.himalayanclub.org/resources/people/jozef-nyka/ |
| J Sheppard | 0 | |
| Jules Cartwright | 0 |
Jules Cartwright was a british climber and mountain guide. He died in 2004 while guiding a client on the Piz Badile. |
| Julia Cassou | 0 | |
| Julian Acevedo | 0 | |
| Juliana Merighi | 0 |