| Fighter | Record | Last Bout |
|---|---|---|
| Vince Cachero | 7-4-0 | 2021-02-27 |
| Vlasto Cepo | 14-4-0 | 2026-08-01 |
| Wagner Campos | 12-10-0 | 2012-06-23 |
| Waldo Cortes Acosta | 17-3-0 | 2026-09-12 |
| Wang Cong | 10-1-0 | 2026-10-03 |
| Wes Combs | 20-6-0 | 2006-08-26 |
| Wesley Correira | 20-16-0 | 2004-04-02 |
| Will Campuzano | 14-6-0 | 2014-03-15 |
| Will Chope | 34-13-0 | 2014-01-04 |
| Yan Cabral | 13-3-0 | 2016-05-08 |
| Yorgan De Castro | 6-3-0 | 2021-04-10 |
| Yosdenis Cedeno | 10-6-1 | 2015-07-11 |
| Yui Chul Nam | 18-8-1 | 2015-11-28 |
| Zak Cummings | 25-7-0 | 2023-04-15 |