| Fighter | Record | Last Bout |
|---|---|---|
| Felipe Silva | 8-2-0 | 2018-05-19 |
| Felipe dos Santos | 8-3-0 (1 NC) | 2025-03-22 |
| Felix Lee Mitchell | 2-7-0 | 1996-12-07 |
| Feng Xiaocan | 11-5-0 | 2024-11-23 |
| Fernando Bruno | 15-4-0 | 2016-07-08 |
| Fernando Padilla | 16-6-0 | 2024-12-14 |
| Fernie Garcia | 10-5-0 | 2024-02-10 |
| Filip Pejic | 12-2-2 | 2016-04-10 |
| Flavio Luiz Moura | 19-7-0 | 1999-07-16 |
| Floyd Sword | 12-3-0 | 2007-06-23 |
| Forrest Griffin | 19-7-0 | 2012-07-07 |
| Forrest Petz | 26-10-0 | 2010-09-15 |
| Francesco Maturi | 0-1-0 | 1995-09-08 |
| Francesco Nuzzi | 12-2-0 (2 NC) | 2026-08-29 |
| Francimar Barroso | 19-7-0 (1 NC) | 2018-01-20 |
| Francis Carmont | 25-12-0 | 2014-08-23 |
| Francis Marshall | 10-3-0 | 2026-04-25 |
| Francis Ngannou | 17-3-0 | 2022-01-22 |
| Francisco Figueiredo | 13-5-1 (1 NC) | 2022-08-20 |
| Francisco Prado | 12-5-0 | 2026-04-11 |
| Francisco Rivera | 11-7-0 (1 NC) | 2016-07-30 |
| Francisco Trevino | 13-3-0 | 2015-10-03 |
| Francisco Trinaldo | 28-9-0 | 2022-10-01 |
| Frank Camacho | 22-10-0 | 2022-05-14 |
| Frank Caracci | 2-3-0 | 1999-01-08 |
| Frank Hamaker | 1-0-0 | 1994-03-11 |
| Frank Lester | 11-6-0 (1 NC) | 2009-06-20 |
| Frank Mir | 18-11-0 | 2016-03-19 |
| Frank Shamrock | 23-10-2 | 1999-09-24 |
| Frank Trigg | 21-9-0 | 2010-02-06 |
| Frankie Edgar | 23-11-1 | 2022-11-12 |
| Frankie Perez | 10-4-0 | 2017-07-22 |
| Frankie Saenz | 13-7-0 | 2020-08-01 |
| Fred Ettish | 1-1-0 | 1994-03-11 |
| Fredson Paixao | 10-5-0 (1 NC) | 2010-12-04 |
| Fredy Serrano | 3-2-0 | 2016-12-17 |
| Gabriella Fernandes | 11-4-0 | 2026-03-28 |
| Geraldo de Freitas | 12-6-0 | 2020-11-14 |
| Glaico Franca Moreira | 15-5-0 | 2016-09-24 |
| Hermes Franca | 24-17-0 (1 NC) | 2009-09-19 |
| Ian Freeman | 20-7-1 | 2003-06-06 |
| Jafel Filho | 17-5-0 | 2026-04-25 |
| Jason Fairn | 4-5-0 | 1994-12-16 |
| Jason Von Flue | 14-12-1 | 2006-08-17 |
| Jesse Forbes | 15-5-0 | 2010-05-29 |
| Jimmy Flick | 17-9-0 | 2025-04-26 |
| Jinh Yu Frey | 11-10-0 | 2023-10-21 |
| Jon Fitch | 30-7-1 (1 NC) | 2013-02-02 |
| Josh Ferguson | 10-5-0 | 2012-07-11 |
| Josh Fremd | 11-6-0 | 2024-07-13 |