| Fighter | Record | Last Bout |
|---|---|---|
| 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 Hernandez | 10-5-0 | 2025-05-17 |
| Carlos Huachin | 10-5-1 | 2019-09-21 |
| Carlos Leal | 23-7-0 | 2026-02-21 |
| Carlos Mota | 8-2-0 | 2022-10-29 |
| Carlos Newton | 16-14-0 | 2004-01-31 |
| Carlos Prates | 24-7-0 | 2026-05-02 |
| Carlos Ulberg | 15-1-0 | 2026-04-11 |
| Carlos Vera | 12-4-0 | 2025-03-15 |
| Carls John De Tomas | 6-2-0 | 2017-12-09 |
| Carlston Harris | 19-8-0 | 2026-05-30 |
| Carlton Minus | 10-3-0 (1 NC) | 2020-12-19 |
| Carmelo Marrero | 16-6-0 (1 NC) | 2009-04-01 |
| Carol Foro | 10-1-0 | 2026-08-08 |
| Caros Fodor | 11-6-0 | 2013-02-23 |
| Casey Kenney | 16-4-1 | 2021-08-07 |
| Casey O'Neill | 11-2-0 | 2026-09-19 |
| Cat Zingano | 10-4-0 | 2018-12-29 |
| Cathal Pendred | 17-4-1 | 2015-10-24 |
| Cesar Almeida | 7-3-0 | 2026-07-11 |
| Cesar Arzamendia | 8-3-0 | 2016-07-30 |
| Cesar Marscucci | 3-2-0 | 1998-10-16 |
| Cezar Ferreira | 13-8-0 | 2019-07-13 |
| Cezary Oleksiejczuk | 17-3-0 | 2025-12-13 |
| Chad Anheliger | 13-8-0 | 2026-10-17 |
| Chad Griggs | 11-3-0 | 2012-11-17 |
| Chad Laprise | 13-4-0 | 2018-12-08 |
| Chad Mendes | 18-5-0 | 2018-12-29 |
| Chad Reiner | 33-18-0 | 2007-06-12 |
| Chael Sonnen | 29-15-1 | 2013-11-16 |
| Chan Sung Jung | 17-8-0 | 2023-08-26 |
| Chan-Mi Jeon | 5-2-0 | 2017-09-22 |
| Chance Rencountre | 14-4-0 | 2019-11-02 |
| ChangHo Lee | 11-2-0 | 2025-11-01 |
| Charalampos Grigoriou | 8-5-0 | 2024-08-10 |
| Charles Byrd | 10-7-0 | 2020-06-06 |
| Charles Johnson | 20-9-0 | 2026-08-15 |
| Charles Jourdain | 18-8-1 | 2026-09-19 |
| Charles McCarthy | 10-5-0 | 2008-04-19 |
| Charles Oliveira | 37-11-0 (1 NC) | 2026-03-07 |
| Charles Radtke | 12-5-0 | 2026-04-11 |
| Charles Rosa | 14-8-0 | 2022-07-23 |
| Charlie Brenneman | 19-8-0 | 2014-11-08 |
| Charlie Campbell | 9-3-0 | 2025-09-27 |
| Charlie Ontiveros | 11-9-0 | 2022-08-13 |