| Artist | Year at the Gathering |
| G88 | 2011 |
| Gallagher | 2010 |
| Gangs of Green | 2010 |
| Gash | 2007 |
| G-Child | 2011 |
| Genicide | 2007 |
| George Aneed | 2016 |
| George Clinton & Parliament-Funkadelic | 2011, 2012 |
| George Zelaya | 2008 |
| Geto Boys | 2012, 2019 |
| Ghostemane | 2019 |
| Ghoulavelii | 2022 |
| Ghoultown | 2002 |
| Gilbert Gottfried | 2014, 2019 |
| GL1TCH | 2006 |
| Glasses Malone | 2012 |
| Glitter Moneyyy | 2018 |
| G-Mike | 2016 |
| G-Mo Skee | 2015 |
| Gnarcotix | 2021 |
| God Forbid | 2007 |
| Godfrey | 2015 |
| Goest Ryder | 2018 |
| Goodfella | 2006 |
| Grand Mother's Funck | 2019 |
| Grave Birth | 2012 |
| Gravedog | 2007 |
| Green Jelly | 2016, 2017, 2022 |
| Griinch Muzic | 2018 |
| Grimm | 2022 |
| Gritty | 2012 |
| Grlwood | 2019 |
| Group Home | 2022 |
| Group Rehab | 2007 |
| Gwar | 2009, 2016, 2018, 2019 |
| Gypsy | 2016 |
