Poids Plumes Hommes
 | Jose Perez | 1-1-0 REC | #4504 |  |
 | Jose Sanchez | 0-1-0 REC | #6358 |  |
 | Jose-Angel Rebolledo | 0-1-0 REC | #5065 |  |
 | Josef Stummer | 5-2-0 REC | #832 |  |
 | Josh Abraham | 2-1-0 REC | #1228 |  |
 | Josh Blyden | 0-1-0 REC | #7225 | |
 | Josh Clopton | 0-2-0 UFC | #4527 | |
 | Josh Culibao | 3-4-1 UFC | #2352 |  |
 | Josh Emmett | 10-7-0 UFC | #254 | |
 | Josh Grispi | 0-4-0 UFC | #3263 | |
 | Josh O'Connor | 5-0-0 REC | #1255 |  |
 | Josh Reed | 0-1-0 REC | #4605 | |
 | Josh San Diego | 0-1-0 REC | #6456 | |
 | Josh Wang-Kim | 0-1-0 REC | #5946 | |
 | Jota Ninomiya | 0-1-0 REC | #7132 | |
 | JR Coughran | 0-1-0 REC | #6697 | |
 | Juan Manuel Puig | 0-2-0 UFC | #4506 |  |
 | Julian Erosa | 9-9-0 UFC | #470 | |
 | Julian Ruiz | 0-1-0 REC | #6409 | |
 | Julio Arce | 6-4-0 UFC | #1308 | |