| Fighter | Record | Last Bout |
|---|---|---|
| Davey Grant | 18-8-0 | 2026-04-25 |
| Davi Ramos | 10-4-0 | 2020-07-18 |
| David Abbott | 10-15-0 | 2003-11-21 |
| David Baron | 17-4-1 | 2008-10-18 |
| David Bielkheden | 24-12-0 | 2009-04-18 |
| David Branch | 22-6-0 | 2019-03-30 |
| David Dodd | 4-7-0 | 2000-06-09 |
| David Dvorak | 20-6-0 | 2023-06-10 |
| David Heath | 18-7-0 | 2008-02-02 |
| David Hood | 1-3-0 | 1995-09-08 |
| David Kaplan | 3-4-0 | 2009-05-23 |
| David Lee | 12-10-0 | 2007-04-21 |
| David Levicki | 1-3-0 | 1994-03-11 |
| David Loiseau | 23-11-0 | 2010-06-12 |
| David Martinez | 14-1-0 | 2026-09-12 |
| David Michaud | 11-3-0 | 2015-04-25 |
| David Mitchell | 22-7-0 | 2013-10-09 |
| David Onama | 14-3-0 | 2025-11-01 |
| 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 |
| Dean Barry | 4-2-0 | 2022-04-23 |
| Dean Lister | 13-7-0 | 2008-12-27 |
| DeAnna Bennett | 8-3-1 | 2017-12-01 |
| Deiveson Figueiredo | 25-7-1 | 2026-10-03 |
| Delphine Benouaich | 8-2-0 | 2026-09-05 |
| 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 |
| Denise Gomes | 13-3-0 | 2026-08-29 |
| Dennis Bermudez | 17-9-0 | 2019-01-19 |
| Dennis Buzukja | 12-7-0 | 2026-08-01 |
| 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 |
| Denzel Freeman | 7-2-0 | 2026-01-24 |
| 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 Lewis | 29-14-0 (1 NC) | 2026-06-14 |
| Derrick Noble | 27-15-1 | 2006-04-15 |
| Desmond Green | 23-8-0 | 2019-05-18 |
| Devin Clark | 14-9-0 | 2024-02-10 |