| Fighter | Record | Last Bout |
|---|---|---|
| Diego Sanchez | 31-13-0 | 2020-09-26 |
| Diego Saraiva | 22-20-1 | 2007-09-22 |
| Dieusel Berto | 0-3-0 | 1996-07-12 |
| Dileno Lopes | 19-3-0 | 2016-07-07 |
| Din Thomas | 26-9-0 (1 NC) | 2008-04-02 |
| Dmitri Stepanov | 0-1-0 | 1997-05-30 |
| Dmitrii Smoliakov | 9-3-0 | 2019-04-27 |
| Dmitry Sosnovskiy | 11-0-0 | 2018-03-17 |
| Dokonjonosuke Mishima | 21-7-2 | 2007-04-05 |
| Domingo Pilarte | 8-3-0 (1 NC) | 2021-08-21 |
| Dominic Waters | 9-5-0 | 2016-05-08 |
| Dominick Cruz | 24-4-0 | 2022-08-13 |
| Dominique Steele | 14-9-0 | 2017-06-10 |
| Don Frye | 20-9-1 (1 NC) | 1996-12-07 |
| Don Madge | 9-3-1 | 2019-09-07 |
| Don Shainis | 12-5-0 | 2023-02-11 |
| Donald Cerrone | 36-17-0 (2 NC) | 2022-07-02 |
| Dong Hyun Kim | 22-4-1 (1 NC) | 2017-06-17 |
| Dong Hyun Ma | 16-11-3 | 2019-12-21 |
| Dongi Yang | 13-3-0 | 2015-11-28 |
| Donnie Chappell | 0-1-0 | 1997-07-27 |
| Donny Walker | 15-10-0 | 2011-09-17 |
| Dorian Price | 8-5-0 | 2007-12-08 |
| Doug Evans | 13-10-0 | 2007-12-29 |
| Drako Rodriguez | 7-3-0 | 2021-08-07 |
| Drew Fickett | 42-21-0 | 2007-04-05 |
| Drew McFedries | 12-7-0 | 2009-09-19 |
| Duane Ludwig | 21-14-0 | 2012-09-29 |
| Duda Santana | 3-1-0 | 2019-06-01 |
| Dustin Hazelett | 12-7-0 | 2010-12-11 |
| Dustin Kimura | 11-3-0 | 2014-12-13 |
| Dustin Neace | 25-21-1 (1 NC) | 2011-12-03 |
| Dustin Ortiz | 19-8-0 | 2019-01-19 |
| Dustin Pague | 12-11-0 | 2013-10-19 |
| Dwayne Cason | 1-1-0 | 1997-10-17 |
| Dwight Grant | 11-6-0 | 2022-07-16 |
| Dylan Andrews | 18-7-0 (1 NC) | 2015-05-09 |
| Ebenezer Fontes Braga | 13-7-2 | 1998-10-16 |
| Ed Herman | 27-16-0 (1 NC) | 2023-04-15 |
| Eddie Alvarez | 29-6-0 (1 NC) | 2018-07-28 |
| Eddie Gordon | 8-4-0 | 2015-06-27 |
| Eddie Mendez | 8-3-1 (1 NC) | 2013-06-08 |
| Eddie Ruiz | 1-1-0 | 2003-06-06 |
| Eddie Sanchez | 15-8-0 | 2008-12-10 |
| Eddie Wineland | 24-16-1 | 2022-06-18 |
| Eddie Yagin | 16-7-1 | 2012-04-21 |
| Edgar Garcia | 14-5-0 | 2016-01-02 |
| Edilberto de Oliveira | 29-15-2 | 2007-09-19 |
| Edimilson Souza | 15-5-0 | 2015-11-07 |
| Ednaldo Oliveira | 17-3-1 (1 NC) | 2013-08-03 |