| Fighter | Record | Last Bout |
|---|---|---|
| Aaron Wilkinson | 11-7-0 | 2010-12-04 |
| Adam Wieczorek | 10-2-0 | 2018-11-03 |
| Alex White | 13-6-0 | 2019-10-26 |
| Andre Winner | 21-11-2 | 2011-07-02 |
| Andy Wang | 7-8-1 (1 NC) | 2007-06-23 |
| Anthony Wint | 8-0-0 | 2026-08-22 |
| Anying Wang | 2-1-0 | 2014-08-23 |
| Ben Wall | 8-7-1 | 2014-05-10 |
| Brandon Wolff | 7-5-0 | 2009-05-23 |
| Brogan Walker | 8-5-0 | 2025-10-04 |
| Brok Weaver | 15-6-0 | 2020-09-12 |
| Cal Worsham | 13-10-0 | 1996-12-07 |
| Charlie Ward | 3-3-0 | 2017-07-16 |
| Chris Wade | 12-3-0 | 2017-07-22 |
| Chris Weidman | 16-8-0 | 2024-12-07 |
| Chris Wilson | 18-10-0 (1 NC) | 2009-09-16 |
| Christian Wellisch | 8-5-0 | 2009-01-31 |
| Cole Williams | 11-3-0 | 2020-10-31 |
| Cory Walmsley | 8-2-0 | 2006-08-26 |
| Crafton Wallace | 18-6-1 | 2006-10-10 |
| Craig White | 14-9-0 | 2018-09-08 |
| Curt Warburton | 13-6-0 | 2011-06-26 |
| Da Woon Jung | 15-6-1 | 2024-09-28 |
| Danyelle Wolf | 1-1-0 | 2022-09-10 |
| Darian Weeks | 5-3-0 | 2022-09-10 |
| Deron Winn | 7-3-0 | 2022-06-18 |
| Dominic Waters | 9-5-0 | 2016-05-08 |
| Donny Walker | 15-10-0 | 2011-09-17 |
| Eddie Wineland | 24-16-1 | 2022-06-18 |
| Emily Whitmire | 4-5-0 | 2021-09-18 |
| Eric Wisely | 26-9-1 | 2012-04-14 |
| Fabricio Werdum | 24-9-1 | 2020-07-25 |
| Garett Whiteley | 7-3-0 | 2014-12-13 |
| Jakub Wiklacz | 18-3-2 | 2026-02-07 |
| James Wilks | 7-4-0 | 2010-10-16 |
| Jason Witt | 19-9-0 | 2022-08-13 |
| Jeremiah Wells | 14-4-1 | 2026-08-15 |
| Jim Wallhead | 29-11-0 | 2017-06-03 |
| Joanne Wood | 17-8-0 | 2024-03-09 |
| Johnny Walker | 22-10-0 (1 NC) | 2026-10-03 |
| Jonathan Wiezorek | 11-2-0 | 2004-04-02 |
| Jonathan Wilson | 7-3-0 | 2017-10-21 |
| Jonavin Webb | 9-2-0 (1 NC) | 2016-02-21 |
| Jordan Williams | 9-6-0 (1 NC) | 2021-11-06 |
| Jordan Wright | 12-5-0 (1 NC) | 2023-02-18 |
| Joshua Weems | 11-3-0 | 2022-10-29 |
| Julius Walker | 7-3-0 | 2026-06-27 |
| Justin Willis | 8-2-0 | 2019-03-23 |
| Justin Wren | 13-2-0 | 2009-12-05 |
| Karl Williams | 10-2-0 | 2024-08-10 |