| Fighter | Record | Last Bout |
|---|---|---|
| Leon Shahbazyan | 12-5-0 | 2026-06-20 |
| Leonard Garcia | 18-13-1 | 2013-04-27 |
| Leonardo Guimaraes | 11-5-0 (1 NC) | 2016-09-17 |
| Leonardo Mafra | 13-4-0 | 2015-07-18 |
| Leonardo Morales | 6-2-0 | 2015-06-06 |
| Leonardo Santos | 18-7-1 | 2022-08-20 |
| Lerone Murphy | 17-1-1 | 2026-03-21 |
| Lerryan Douglas | 14-6-0 | 2026-08-22 |
| Leslie Smith | 10-7-1 | 2017-07-16 |
| Levan Chokheli | 15-3-0 (1 NC) | 2026-06-20 |
| Levan Makashvili | 15-2-1 | 2016-01-30 |
| Levi Rodrigues Jr. | 5-2-0 (1 NC) | 2026-08-29 |
| Lewis Gonzalez | 11-3-0 | 2015-06-27 |
| Li Jingliang | 19-9-0 | 2024-08-17 |
| Liana Jojua | 8-5-0 | 2021-11-13 |
| Liang Na | 19-8-0 | 2024-04-27 |
| Liliya Shakirova | 8-2-0 | 2020-10-24 |
| Lina Lansberg | 10-8-0 | 2023-02-18 |
| Lisa Ellis | 15-11-0 | 2015-05-09 |
| Liu Ce | 4-1-0 | 2026-08-29 |
| Liudvik Sholinian | 9-4-1 | 2022-11-05 |
| Livinha Souza | 14-4-0 | 2021-10-23 |
| Liz Carmouche | 13-7-0 | 2019-08-10 |
| Lodune Sincaid | 15-9-0 | 2005-04-09 |
| Logan Clark | 18-6-0 | 2006-12-13 |
| Loik Radzhabov | 18-6-1 | 2024-07-20 |
| Loma Lookboonmee | 10-5-0 | 2026-05-30 |
| Lone'er Kavanagh | 10-2-0 | 2026-10-24 |
| Loopy Godinez | 14-6-0 | 2026-04-11 |
| Lorenz Larkin | 18-6-0 (1 NC) | 2016-08-20 |
| Losene Keita | 17-2-0 | 2026-09-05 |
| Louie Sutherland | 11-6-0 | 2026-08-08 |
| Louis Cosce | 7-2-0 | 2022-09-17 |
| Louis Gaudinot | 8-4-0 (1 NC) | 2015-01-03 |
| Louis Jourdain | 9-3-0 | 2026-10-17 |
| Louis Smolka | 17-9-0 | 2022-05-14 |
| Lowell Anderson | 0-1-0 | 1999-09-24 |
| Luan Chagas | 15-3-1 | 2018-04-21 |
| Luan Lacerda | 13-4-0 | 2026-03-14 |
| Luana Carolina | 11-5-0 | 2025-09-27 |
| Luana Pinheiro | 11-5-0 | 2025-05-17 |
| Luana Santos | 11-2-0 | 2026-06-20 |
| Lucas Alexander | 8-5-0 | 2025-02-01 |
| Lucas Almeida | 15-5-0 | 2025-10-11 |
| Lucas Brennan | 11-3-0 | 2026-04-25 |
| Lucas Fernando | 14-3-0 | 2026-08-15 |
| Lucas Martins | 19-3-0 | 2016-04-10 |
| Lucas Rocha | 18-2-0 | 2025-10-11 |
| Lucia Szabova | 12-0-0 | 2026-10-31 |
| Lucie Pudilova | 14-10-0 | 2024-07-20 |