| Climber | Ascents | Sex | Dob | Height |
|---|---|---|---|---|
| Facundo Langbehn | 1 | M | August 29, 1994 | |
| Iván Larrión | 5 | M | Unknown | |
| Clément Lechaptois | 1 | M | April 12, 1993 | 170 |
| Katrin Lehmann | 1 | F | Unknown | 160 |
| Marc Le Menestrel | 1 | M | Unknown | |
| Melissa Le Nevé | 0 | F | July 08, 1989 | 167 |
| Alban Levier | 6 | M | June 28, 1994 | 170 |
| Michael Leweson | 1 | M | December 12, 1994 | 178 |
| James Litz | 0 | M | Unknown | |
| Kevin Lopata | 3 | M | October 10, 1982 | 189 |
| Klem Loskot | 5 | M | May 11, 1974 | 183 |
| Zan Lovenjak Sudar | 1 | M | January 14, 1998 | 181 |
| David MacLeod | 5 | M | July 17, 1978 | 172 |
| Eduard Marín García | 1 | M | August 13, 1985 | 174 |
| Kim Marschner | 1 | M | January 28, 1998 | 167 |
| Lucien Martinez | 1 | M | Unknown | |
| Steve McClure | 1 | M | July 25, 1970 | 169 |
| Sean McColl | 2 | M | September 03, 1987 | 169 |
| Taylor McNeill | 2 | M | March 05, 1991 | 190 |
| Alexander Megos | 14 | M | August 12, 1993 | 173 |
| Markel Mendieta Uribarren | 2 | M | Unknown | |
| Ander Mendieta Uribarren | 0 | M | September 10, 1988 | |
| Lucas Ménégatti | 2 | M | July 24, 1990 | 183 |
| Magnus Midtbø | 2 | M | September 18, 1988 | 174 |
| Nicholas Milburn | 1 | M | February 28, 1995 | |
| Martin Mobråten | 2 | M | January 01, 1982 | 176 |
| Frédéric Moix | 1 | M | Unknown | |
| Isaac Montes | 2 | M | Unknown | |
| Gabriele Moroni | 10 | M | September 20, 1987 | 170 |
| Martin Moser | 1 | M | February 28, 1978 | 186 |
| Philip Moser | 2 | M | Unknown | |
| Tomáš Mrázek | 1 | M | August 24, 1982 | 178 |
| Ignacio Mulero | 1 | M | Unknown | |
| Jesús Muñoz Chuchi | 1 | M | October 25, 1991 | 181 |
| Ryuichi Murai | 12 | M | June 24, 1994 | 167 |
| Tokio Muroi | 3 | M | Unknown | |
| Julien Nadiras | 1 | M | Unknown | |
| Motochika Nagao | 3 | M | Unknown | |
| Toru Nakajima | 9 | M | September 17, 1993 | |
| Frédéric Nicole | 12 | M | May 21, 1970 | 180 |
| Michiel Nieuwenhuijsen | 3 | M | December 17, 1986 | 186 |
| James Noble | 2 | M | Unknown | |
| Satoshi Ogawa | 1 | M | Unknown | |
| Thomas O'Halloran | 2 | M | July 22, 1992 | 180 |
| Samuel Ometz | 2 | M | July 22, 1995 | 180 |
| Baptiste Ometz | 2 | M | September 15, 1998 | 182 |
| Adam Ondra | 45 | M | February 05, 1993 | 185 |
| Michael O'Rourke | 1 | M | July 04, 1994 | 170 |
| Ricardo Otegui Zubiyaga | 2 | M | Unknown | |
| Micky Page | 3 | M | Unknown |