| Fighter | Record | Last Bout |
|---|---|---|
| Oleg Taktarov | 17-5-2 | 1995-12-16 |
| Oli Thompson | 17-10-0 | 2012-08-04 |
| Paul Taylor | 11-6-1 (1 NC) | 2011-02-05 |
| Paulo Thiago | 18-9-0 | 2014-09-13 |
| Rameau Thierry Sokoudjou | 18-18-0 | 2008-10-18 |
| Roberto Traven | 6-4-1 | 2001-11-02 |
| Ronys Torres | 35-5-0 | 2010-03-31 |
| Ryan Thomas | 20-8-0 | 2008-11-15 |
| Salim Touahri | 10-4-0 | 2019-08-03 |
| Simeon Thoresen | 17-6-1 | 2013-01-26 |
| TJ Brown | 17-11-0 | 2023-10-14 |
| TJ Dillashaw | 18-5-0 | 2022-10-22 |
| TJ Grant | 21-5-0 | 2013-05-25 |
| TJ Laramie | 12-5-0 | 2022-04-16 |
| TJ O'Brien | 20-8-0 | 2011-08-14 |
| TJ Waldburger | 16-9-0 | 2014-02-22 |
| Tae Hyun Bang | 18-10-0 | 2016-09-03 |
| Tafon Nchukwi | 6-4-0 | 2023-08-12 |
| Tai Bowden | 1-1-0 | 1996-12-07 |
| Taila Santos | 19-3-0 | 2023-08-26 |
| Takanori Gomi | 35-14-0 (1 NC) | 2017-09-22 |
| Takashi Sato | 16-7-0 | 2023-05-20 |
| Takenori Sato | 19-11-7 (1 NC) | 2014-09-20 |
| Takeya Mizugaki | 21-11-2 | 2016-12-17 |
| Talita Bernardo | 6-4-0 | 2019-05-11 |
| Tamdan McCrory | 14-5-0 | 2016-10-01 |
| Tarec Saffiedine | 16-7-0 | 2017-06-17 |
| Tateki Matsuda | 13-8-0 | 2015-01-18 |
| Tatsuya Kawajiri | 36-11-2 | 2016-08-06 |
| Te Edwards | 6-3-0 | 2019-01-19 |
| Tedd Williams | 7-1-0 | 2000-09-22 |
| Teemu Packalen | 8-3-0 | 2019-09-07 |
| Terrence Mitchell | 14-4-0 | 2023-09-16 |
| Terrion Ware | 17-9-0 | 2018-09-15 |
| Terry Etim | 16-5-0 | 2013-02-16 |
| Terry Martin | 23-11-0 | 2008-02-02 |
| Teruto Ishihara | 10-7-2 | 2019-02-09 |
| Thaddeus Luster | 0-1-0 | 1994-03-11 |
| Thales Leites | 28-9-0 | 2018-09-22 |
| Thiago Alves | 23-15-0 | 2019-12-07 |
| Thiago Perpetuo | 9-4-1 | 2014-03-23 |
| Thiago Santos | 22-11-0 | 2022-08-06 |
| Thiago Silva | 19-6-0 (2 NC) | 2013-10-09 |
| Thiago Tavares | 21-7-1 | 2016-07-08 |
| Thibault Gouti | 12-5-0 | 2018-10-27 |
| Thomas Almeida | 22-5-0 | 2021-03-27 |
| Thomas Gifford | 14-9-0 (2 NC) | 2019-10-12 |
| Thomas Ramirez | 0-1-0 | 1996-02-16 |
| Tiago dos Santos e Silva | 20-7-2 (1 NC) | 2016-12-09 |
| Tiki Ghosn | 10-7-1 | 2004-04-02 |