Sorted alphabetically by last name · 2715 fighters
| Name | Nickname | |
|---|---|---|
| JS | John Salter | |
| JT | John Teixeira | "Macapa" |
| JY | John Yannis | |
| JB | Johnny Bedford | "Brutal" |
| JC | Johnny Case | "Hollywood" |
| JE | Johnny Eduardo | |
| JM | Johnny Munoz | "Kid Kvenbo" |
| JR | Johnny Rees | "The Hater Hurter" |
| JR | Johnny Rhodes | |
| JW | Johnny Walker |