';
| Fighter | Nickname | Height | Weight | Association | |
| Franco Burcina | "Napalm" | 6'1" (1.85 m) |
185 lbs (83.91 kg) |
Nor-Cal Fighting Alliance | |
| Frank Shamrock | 5'10" (1.78 m) |
185 lbs (83.91 kg) |
The Alliance | ||
| Gabriel Miglioli | "Gabe" | 5'10" (1.78 m) |
155 lbs (70.31 kg) |
Alliance MMA | |
| Gabriel Dolce-Pacheco | "The GuardFather" | 6'0" (1.83 m) |
170 lbs (77.11 kg) |
Nor-Cal Fighting Alliance | |
| Gabriel Suniga | "Grillo" | 5'7" (1.7 m) |
205 lbs (92.99 kg) |
Alliance Jiu-Jitsu Sao Paulo / Brothers Fight Team | |
| Gabrielle Garcia | "Gabi" | 6'2" (1.88 m) |
209 lbs (94.8 kg) |
Alliance Jiu-Jitsu | |
| Gary Padilla | 6'1" (1.85 m) |
185 lbs (83.91 kg) |
Alliance MMA | ||
| Genki Tokita | 0'0" (0 m) |
135 lbs (61.23 kg) |
Alpha Gym / Alliance-Square | ||
| Gerardo Gualdron | 0'0" (0 m) |
145 lbs (65.77 kg) |
Alliance Jiu Jitsu | ||
| Gleb Zhagrin | 0'0" (0 m) |
155 lbs (70.31 kg) |
Gladiator Alliance | ||
| Gokhan Cicekliyar | 5'11" (1.8 m) |
185 lbs (83.91 kg) |
Alliance MMA | ||
| Guadalupe Miranda | "Lupe" | 5'8" (1.73 m) |
145 lbs (65.77 kg) |
Alliance MMA East | |
| Gustavo Silveira | 0'0" (0 m) |
242 lbs (109.77 kg) |
Alliance Novo Hamburgo | ||
| Halston Williams | "Ox" | 6'2" (1.88 m) |
206 lbs (93.44 kg) |
Alliance MMA | |
| Hannu Mikkola | 0'0" (0 m) |
0 lbs (0 kg) |
Alliance Porvoo | ||
| Hidemasa Soga | 5'6" (1.68 m) |
125 lbs (56.7 kg) |
Alliance-Square | ||
| Hirotaka Yokoi | 5'11" (1.8 m) |
220 lbs (99.79 kg) |
Alliance-Square | ||
| Hirotaka Miyakawa | 5'5" (1.65 m) |
135 lbs (61.23 kg) |
Alliance-Square / Team Yudetamago | ||
| Hiroyuki Ito | 5'11" (1.8 m) |
170 lbs (77.11 kg) |
Alliance-Square / Team Yudetamago | ||
| Hugo Rivera | "Loco" | 5'8" (1.73 m) |
165 lbs (74.84 kg) |
Alliance Ecuador | |