| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Jason Pickles | 0 | |
| Jasper Sharpe | 0 | |
| Javi Pec | 0 | References[1] https://www.8a.nu/news/javi-pec-full-time-climbing-photographer |
| Jean Franco | 0 | |
| Jeannie Wall | 0 | |
| Jean-Paul Lebaleur | 0 | |
| Jeff Mercier | 0 | |
| Jeff Smoot | 0 | |
| Jenny Fischer | 0 | |
| Jeremiah Watt | 0 | |
| Jerome Rochelle | 0 | |
| Jerry Gore | 0 | References[1] Interview with Adrian Berry September 2004 https://web.archive.org/web/20061022044354/http://www.planetfear.com/article_detail.asp?a_id=253 [2] Interview with Paul Twomey 1997, On The Edge Issue 67, page 26 |
| Jesse Guthrie | 0 | |
| Jill Whittaker | 0 | |
| Jim Arnold | 0 | Jim Arnold was a lakes based climbed who contributed significantly to the development of bouldering in the area, in particular St. Bees and Carrock Fell. References |
| Jim Curran | 0 | References |
| Jim Donini | 0 | References[1] https://open.spotify.com/episode/7eNOc7p5Bgm2vfgO8NWPzt? |
| Jim Ewing | 0 | |
| Jim Herrington | 0 | |
| Jim Hoagland | 0 |