| Fighter | Record | Last Bout |
|---|---|---|
| AJ Cunningham | 11-5-0 | 2025-03-15 |
| Aalon Cruz | 8-4-0 | 2021-03-06 |
| Adam Cella | 6-8-0 | 2013-04-06 |
| Akira Corassani | 12-6-0 (1 NC) | 2015-01-24 |
| Albert Cheng | 7-4-0 | 2014-03-01 |
| Alberta Cerra Leon | 0-1-0 | 1994-03-11 |
| Alberto Crane | 15-5-0 | 2008-01-23 |
| Alden Coria | 13-3-0 (1 NC) | 2026-10-03 |
| Aleksa Camur | 6-3-0 | 2023-08-05 |
| Alessandro Costa | 17-5-0 | 2026-07-11 |
| Alessio Di Chirico | 13-7-0 | 2022-09-03 |
| Alex Caceres | 21-15-0 (1 NC) | 2024-05-11 |
| Alex Chambers | 5-5-0 | 2018-09-22 |
| Allen Crowder | 10-4-0 (1 NC) | 2019-06-22 |
| Amanda Cooper | 3-5-0 | 2018-11-10 |
| Andrew Craig | 9-4-0 | 2015-07-15 |
| Ansar Chalangov | 14-5-0 | 2006-04-06 |
| Anthony Christodoulou | 12-7-0 | 2015-08-08 |
| Antonio Carlos Junior | 11-5-0 (1 NC) | 2021-01-23 |
| Antonio Carvalho | 15-6-0 | 2013-03-16 |
| Ariane Carnelossi | 15-5-0 | 2026-06-06 |
| Asbel Cancio | 0-1-0 | 1995-04-07 |
| Bethe Correia | 11-6-1 | 2021-10-02 |
| Bob Cook | 5-0-0 | 2000-03-10 |
| Brian Camozzi | 7-5-0 | 2018-02-18 |
| Brian Cobb | 20-9-0 | 2009-02-21 |
| Bryan Caraway | 21-9-0 | 2018-11-30 |
| CB Dollaway | 17-9-0 | 2018-09-15 |
| Cain Carrizosa | 10-3-0 | 2015-03-21 |
| Cain Velasquez | 14-3-0 | 2019-02-17 |
| Caio Borralho | 18-2-0 (1 NC) | 2026-03-07 |
| Caio Machado | 8-4-1 | 2024-11-02 |
| Caio Magalhaes | 10-3-0 | 2016-09-10 |
| Cal Worsham | 13-10-0 | 1996-12-07 |
| Cale Yarbrough | 8-3-0 | 2008-07-19 |
| Callan Potter | 18-9-0 | 2020-02-22 |
| Calvin Kattar | 23-10-0 | 2025-07-12 |
| Cam Nelson | 8-1-0 | 2026-08-29 |
| Cam Rowston | 15-3-0 | 2026-10-24 |
| Cameron Dollar | 11-5-0 | 2009-06-20 |
| Cameron Else | 10-6-0 | 2022-04-23 |
| Cameron Saaiman | 9-3-0 | 2025-04-26 |
| Cameron Smotherman | 12-7-0 | 2026-05-30 |
| Cameron VanCamp | 15-7-1 (1 NC) | 2022-09-17 |
| Caol Uno | 33-19-5 | 2010-03-31 |
| Caolan Loughran | 10-2-0 | 2025-03-22 |
| Carl Deaton | 17-7-0 (2 NC) | 2023-07-15 |
| Carla Esparza | 20-8-0 | 2024-10-05 |
| Carli Judice | 7-2-0 | 2026-08-22 |
| Carlo Pedersoli Jr. | 11-3-0 | 2019-02-23 |