Poids Plumes Hommes
 | Jim Alers | 1-2-0, 1NC UFC | #3617 |  |
 | Jim Hettes | 3-3-0 UFC | #3061 | |
 | Jin Aoi | 0-1-0 REC | #5094 |  |
 | Jin Wakita | 0-1-0 REC | #5509 | |
 | Joan Rodriguez | 0-1-0 REC | #5055 |  |
 | Joanderson Brito | 6-3-0 UFC | #463 |  |
 | Joao Pedro Moreira | 1-1-0 REC | #2531 | |
 | Joao Pedro Saldanha | 1-1-0 REC | #6254 | |
 | Joao Roque | 0-1-0 UFC | #4920 |  |
 | Joe Doyle | 0-2-0 REC | #3683 |  |
 | Joel Batobo | 0-1-0 REC | #5723 |  |
 | Joey Gambino | 0-2-0 UFC | #4777 | |
 | John Albert | 1-4-0 UFC | #3336 | |
 | John Cofer | 0-2-0 UFC | #4818 | |
 | John De Jesus | 2-2-0 REC | #4313 | |
 | John Donaldson | 0-1-0 REC | #6203 | |
 | John Gunderson | 1-2-0 UFC | #4239 | |
 | John Teixeira da Conceicao | 0-1-0 UFC | #2947 | |
 | John Yannis | 0-1-0 UFC | #4210 | |
 | Johnny Soto | 0-1-0 REC | #6999 | |