| Fighter | Record | Last Bout |
|---|---|---|
| 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 |
| Aleksa Camur | 6-3-0 | 2023-08-05 |
| 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 |
| 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 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 |
| Cameron Dollar | 11-5-0 | 2009-06-20 |
| Cameron Else | 10-6-0 | 2022-04-23 |
| Cameron VanCamp | 15-7-1 (1 NC) | 2022-09-17 |
| Caol Uno | 33-19-5 | 2010-03-31 |
| Carl Deaton | 17-7-0 (2 NC) | 2023-07-15 |
| Carlo Pedersoli Jr. | 11-3-0 | 2019-02-23 |
| Carlo Prater | 31-18-1 | 2012-10-05 |
| Carlos Barreto | 14-9-0 | 1997-10-17 |
| Carlos Candelario | 8-3-0 | 2022-11-05 |
| Carlos Condit | 32-14-0 | 2021-07-10 |
| Carlos Eduardo Rocha | 9-4-0 | 2012-06-08 |
| Carlos Felipe | 11-2-0 | 2021-10-16 |
| Carlos Huachin | 10-5-1 | 2019-09-21 |
| Carlos Mota | 8-2-0 | 2022-10-29 |
| Carlos Newton | 16-14-0 | 2004-01-31 |
| Carls John De Tomas | 6-2-0 | 2017-12-09 |
| Carlton Minus | 10-3-0 (1 NC) | 2020-12-19 |
| Carmelo Marrero | 16-6-0 (1 NC) | 2009-04-01 |
| Caros Fodor | 11-6-0 | 2013-02-23 |
| Casey Kenney | 16-4-1 | 2021-08-07 |