| Fighter | Record | Last Bout |
|---|---|---|
| Steve Garcia | 19-6-0 | 2026-06-14 |
| Steven Graham | 2-1-0 | 1997-05-30 |
| TJ Grant | 21-5-0 | 2013-05-25 |
| Takanori Gomi | 35-14-0 (1 NC) | 2017-09-22 |
| Themba Gorimbo | 14-7-0 | 2026-05-02 |
| Thibault Gouti | 12-5-0 | 2018-10-27 |
| Thomas Gifford | 14-9-0 (2 NC) | 2019-10-12 |
| Tiki Ghosn | 10-7-1 | 2004-04-02 |
| Tim Gorman | 9-4-0 | 2014-11-08 |
| Tom Gallicchio | 19-10-0 | 2017-07-07 |
| Tommy Gantt | 12-0-0 (1 NC) | 2026-09-12 |
| Tony Gravely | 23-9-0 | 2023-03-11 |
| Tresean Gore | 8-4-0 | 2026-08-15 |
| Trevin Giles | 16-7-0 | 2024-11-02 |
| Tyson Griffin | 16-8-0 | 2011-10-29 |
| Ulysses Gomez | 9-5-0 | 2013-02-16 |
| Vik Grujic | 6-6-0 | 2015-05-09 |
| Wang Guan | 20-1-1 | 2017-11-25 |
| William Gomis | 15-4-0 | 2026-05-09 |
| Willie Gates | 12-7-0 | 2016-05-08 |
| Wilson Gouveia | 14-8-0 | 2009-12-12 |
| Yanis Ghemmouri | 12-3-0 | 2024-06-29 |