| Fighter | Record | Last Bout |
|---|---|---|
| Cristiano Marcello | 13-6-0 | 2014-02-15 |
| Cristina Stanciu | 5-2-0 | 2016-07-13 |
| Cub Swanson | 31-14-0 | 2026-04-11 |
| Cung Le | 9-3-0 | 2014-08-23 |
| Curt Warburton | 13-6-0 | 2011-06-26 |
| Curtis Blaydes | 19-6-0 (1 NC) | 2026-09-12 |
| Curtis Millender | 17-5-0 | 2019-04-13 |
| Curtis Stout | 11-12-1 | 2004-06-19 |
| Cynthia Calvillo | 9-6-1 | 2023-04-08 |
| Cyril Asker | 9-4-0 | 2018-02-10 |
| Cyrille Diabate | 19-10-1 | 2014-03-08 |
| Da Woon Jung | 15-6-1 | 2024-09-28 |
| Da'Mon Blackshear | 17-8-1 | 2025-07-26 |
| Daichi Abe | 6-2-0 | 2018-06-23 |
| Daiju Takase | 12-15-2 | 2000-12-16 |
| Dakota Bush | 8-4-0 | 2022-01-15 |
| Dakota Hope | 11-2-0 | 2026-04-04 |
| Dalcha Lungiambula | 11-6-0 | 2022-12-10 |
| Dale Hartt | 6-3-0 | 2009-06-13 |
| Damacio Page | 19-10-0 | 2012-07-11 |
| DaMarques Johnson | 15-15-0 | 2012-09-29 |
| Damian Grabowski | 20-5-0 | 2017-07-22 |
| Damian Pinas | 10-1-0 | 2026-10-03 |
| Damian Rzepecki | 10-1-0 | 2026-07-25 |
| Damian Stasiak | 10-6-0 | 2018-07-22 |
| Damien Anderson | 5-1-0 | 2026-07-18 |
| Damien Brown | 17-12-0 | 2018-02-10 |
| Damir Hadzovic | 14-8-0 | 2025-02-01 |
| Damir Ismagulov | 24-3-0 | 2023-07-01 |
| Damon Jackson | 23-8-1 (1 NC) | 2024-11-16 |
| Dan Argueta | 9-3-0 (2 NC) | 2024-10-12 |
| Dan Barrera | 3-1-0 | 2007-12-08 |
| Dan Bobish | 17-9-0 | 1997-07-27 |
| Dan Christison | 20-7-0 | 2006-07-08 |
| Dan Cramer | 11-4-0 | 2009-08-08 |
| Dan Evensen | 11-4-0 | 2008-12-27 |
| Dan Hardy | 25-10-0 (1 NC) | 2012-09-29 |
| Dan Henderson | 32-15-0 | 2016-10-08 |
| Dan Hooker | 24-15-0 | 2026-09-05 |
| Dan Ige | 19-11-0 | 2026-09-12 |
| Dan Lauzon | 17-6-0 | 2010-05-29 |
| Dan Miller | 14-8-0 (1 NC) | 2015-07-12 |
| Dan Moret | 13-6-0 | 2019-06-29 |
| Dan Severn | 101-19-1 | 2000-09-22 |
| Dan Stittgen | 12-5-0 | 2012-07-11 |
| Daniel Barez | 17-8-0 | 2026-05-16 |
| Daniel Cormier | 22-3-0 (1 NC) | 2020-08-15 |
| Daniel Frunza | 9-4-0 | 2025-11-01 |
| Daniel Jolly | 5-3-0 | 2017-02-04 |
| Daniel Kelly | 13-4-0 | 2018-05-27 |