| Fighter | Record | Last Bout |
|---|---|---|
| Jordan Griffin | 18-9-0 | 2021-04-10 |
| Jorge Gurgel | 14-10-0 | 2008-11-15 |
| Joseph Gigliotti | 7-2-0 | 2016-12-09 |
| Josh Grispi | 14-5-0 | 2013-02-16 |
| Karine Gevorgyan | 3-3-0 | 2017-12-01 |
| Kendall Grove | 23-17-0 (1 NC) | 2011-05-28 |
| Lance Gibson | 4-5-0 | 2000-12-16 |
| Leonard Garcia | 18-13-1 | 2013-04-27 |
| Leonardo Guimaraes | 11-5-0 (1 NC) | 2016-09-17 |
| Lewis Gonzalez | 11-3-0 | 2015-06-27 |
| Louis Gaudinot | 8-4-0 (1 NC) | 2015-01-03 |
| Lyman Good | 21-6-0 (1 NC) | 2020-06-20 |
| Malcolm Gordon | 14-8-0 | 2024-01-20 |
| Manvel Gamburyan | 15-10-0 (1 NC) | 2016-11-19 |
| Marcelo Golm | 6-3-0 | 2019-04-20 |
| Marcelo Guimaraes | 9-2-1 | 2016-03-05 |
| Mark Godbeer | 13-4-0 | 2018-03-17 |
| Matt Grice | 15-5-0 | 2013-02-23 |
| Maurice Greene | 9-7-0 | 2021-05-08 |
| Maxim Grishin | 32-10-2 | 2023-06-03 |
| Melvin Guillard | 32-18-2 (3 NC) | 2014-03-08 |
| Michael Graves | 6-0-1 | 2016-07-30 |
| Micheal Gillmore | 6-5-0 | 2022-02-26 |
| Mike Grundy | 12-4-0 | 2022-03-19 |
| Mike Guymon | 15-6-1 | 2011-01-22 |
| Miranda Granger | 7-3-0 | 2022-08-06 |
| Mitch Gagnon | 12-5-0 | 2019-05-04 |
| Nandor Guelmino | 11-5-1 | 2013-09-21 |
| Neil Grove | 12-8-1 | 2009-02-21 |
| Pablo Garza | 12-4-0 | 2013-04-06 |
| Paul Georgieff | 6-2-0 | 2007-12-08 |
| Pearl Gonzalez | 6-3-0 | 2017-10-07 |
| Renzo Gracie | 13-7-1 (1 NC) | 2010-04-10 |
| Ricky Glenn | 22-9-2 | 2024-08-17 |
| Roger Gracie | 8-2-0 | 2013-07-06 |
| Rolles Gracie | 8-4-0 | 2010-02-06 |
| Royce Gracie | 15-2-3 | 2006-05-27 |
| Sean Gannon | 2-1-0 | 2005-10-07 |
| Shamil Gamzatov | 14-1-0 | 2021-10-30 |
| Shannon Gugerty | 15-7-0 | 2010-03-21 |
| Sheila Gaff | 9-7-0 | 2013-08-03 |
| Silvana Gomez Juarez | 11-5-0 | 2022-11-12 |
| 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 |
| 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 |