Sorted alphabetically by last name · 2711 fighters
| Name | Nickname | |
|---|---|---|
| FS | Frank Shamrock | |
| FT | Frank Trigg | "Twinkle Toes" |
| FE | Frankie Edgar | "The Answer" |
| FP | Frankie Perez | |
| FS | Frankie Saenz | |
| FE | Fred Ettish | |
| FP | Fredson Paixao | |
| FS | Fredy Serrano | "El Profe" |
| GG | Gabe Green | "Gifted" |
| GR | Gabe Ruediger | "Godzilla" |