| Fighter | Record | Last Bout |
|---|---|---|
| David Loiseau | 23-11-0 | 2010-06-12 |
| David Michaud | 11-3-0 | 2015-04-25 |
| David Mitchell | 22-7-0 | 2013-10-09 |
| David Roberts | 5-8-0 | 1999-05-07 |
| David Terrell | 6-2-0 | 2006-04-15 |
| David Teymur | 8-2-0 | 2019-02-02 |
| David Velasquez | 10-10-0 | 2000-03-10 |
| David Zawada | 17-7-0 | 2021-09-04 |
| DeAnna Bennett | 8-3-1 | 2017-12-01 |
| Dean Barry | 4-2-0 | 2022-04-23 |
| Dean Lister | 13-7-0 | 2008-12-27 |
| Delson Heleno | 29-10-0 | 2012-06-23 |
| Demetrious Johnson | 27-3-1 | 2018-08-04 |
| Demian Maia | 28-11-0 | 2021-06-12 |
| Denis Kang | 35-16-2 (2 NC) | 2009-11-14 |
| Denis Stojnic | 13-3-0 (1 NC) | 2009-06-13 |
| Denis Tiuliulin | 10-10-0 (1 NC) | 2024-08-03 |
| Dennis Bermudez | 17-9-0 | 2019-01-19 |
| Dennis Hallman | 53-20-2 (1 NC) | 2011-12-10 |
| Dennis Siver | 23-11-0 (1 NC) | 2017-06-25 |
| Denys Bondar | 14-5-0 | 2024-02-24 |
| Dequan Townsend | 21-12-0 | 2020-10-03 |
| Derek Brunson | 23-9-0 | 2023-03-04 |
| Derek Downey | 11-4-0 | 2009-02-07 |
| Deron Winn | 7-3-0 | 2022-06-18 |
| Derrick Krantz | 22-12-0 | 2019-08-31 |
| Derrick Noble | 27-15-1 | 2006-04-15 |
| Desmond Green | 23-8-0 | 2019-05-18 |
| Devin Clark | 14-9-0 | 2024-02-10 |
| Devin Powell | 9-4-0 | 2018-11-17 |
| Devonte Smith | 11-4-0 | 2022-03-05 |
| Dhiego Lima | 17-9-0 | 2021-06-19 |
| Diego Brandao | 22-11-0 | 2016-01-02 |
| Diego Nunes | 19-7-0 | 2013-01-19 |
| Diego Rivas | 10-2-0 | 2018-05-19 |
| 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 |