| Fighter | Record | Last Bout |
|---|---|---|
| Tom Gallicchio | 19-10-0 | 2017-07-07 |
| Tom Lawlor | 10-6-0 (1 NC) | 2016-03-05 |
| Tom Murphy | 8-0-0 | 2006-03-04 |
| Tom Niinimaki | 22-8-1 | 2014-12-20 |
| Tom Watson | 17-9-0 | 2015-08-08 |
| Tomasz Drwal | 21-5-1 | 2010-09-15 |
| Tommy Hayden | 11-3-0 | 2012-08-11 |
| Tommy Speer | 21-7-0 | 2008-04-02 |
| Tony DeSouza | 11-4-0 | 2007-12-29 |
| Tony Ferguson | 26-11-0 | 2024-08-03 |
| Tony Fryklund | 14-9-1 | 2004-10-22 |
| Tony Gravely | 23-9-0 | 2023-03-11 |
| Tony Halme | 0-4-0 | 1997-05-30 |
| Tony Kelley | 8-3-0 | 2022-06-18 |
| Tony Petarra | 2-3-1 | 1999-05-07 |
| Tony Sims | 12-4-0 | 2016-01-02 |
| Tonya Evinger | 19-8-0 (1 NC) | 2019-06-01 |
| Tor Troeng | 16-7-1 | 2014-10-04 |
| Townsend Saunders | 0-2-0 | 1999-01-08 |
| Tra Telligman | 7-5-1 | 2005-08-20 |
| Travis Browne | 18-7-1 | 2017-07-08 |
| Travis Fulton | 253-53-10 (1 NC) | 1999-07-16 |
| Travis Lutter | 10-6-0 | 2008-04-19 |
| Travis Wiuff | 75-21-0 (1 NC) | 2005-04-16 |
| Trent Jenkins | 0-4-0 | 1995-12-16 |
| Trevin Jones | 13-10-0 (1 NC) | 2023-03-04 |
| Trevor Prangley | 34-11-2 | 2006-04-06 |
| Trevor Smith | 15-10-0 | 2019-12-07 |
| Tristan Connelly | 14-8-0 | 2022-04-30 |
| Troy Mandaloniz | 3-2-0 | 2009-02-21 |
| Tsuyoshi Kohsaka | 27-19-2 | 2002-05-10 |
| Tucker Lutz | 12-4-0 | 2023-07-15 |
| Tulio Palhares | 2-16-0 | 1998-10-16 |
| Tyler Diamond | 9-1-0 | 2018-07-06 |
| Tyler Toner | 15-7-0 (1 NC) | 2010-12-04 |
| Tyron Woodley | 19-7-1 | 2021-03-27 |
| Tyrone Roberts | 43-12-1 | 2000-06-09 |
| Tyson Griffin | 16-8-0 | 2011-10-29 |
| Tyson Nam | 21-14-1 | 2023-07-15 |
| Tyson Pedro | 10-5-0 | 2024-03-02 |
| Ulysses Gomez | 9-5-0 | 2013-02-16 |
| Uriah Hall | 18-11-0 | 2022-07-02 |
| Urijah Faber | 35-11-0 | 2019-12-14 |
| Vagner Rocha | 14-4-0 | 2014-11-07 |
| Val Woodburn | 7-2-0 | 2024-02-17 |
| Valeri Ignatov | 1-2-0 | 1999-09-24 |
| Valerie Letourneau | 8-6-0 | 2016-12-10 |
| Valmir Lazaro | 15-5-0 | 2015-11-21 |
| Vanessa Melo | 11-8-0 | 2021-01-16 |
| Vaughan Lee | 14-13-1 | 2015-07-18 |