Poids Mi-Lourds Hommes
 | Jason Radcliffe | 0-1-0 REC | #6263 |  |
 | Jay Radick | 0-1-0 REC | #6737 |  |
 | Jayden Taulker | 0-1-0 REC | #5731 | |
 | Jeff Newton | 0-1-0 UFC | #6490 | |
 | Jeremy Kimball | 1-3-0 UFC | #2667 | |
 | Jermaine Andre | 0-1-0 UFC | #5430 | |
 | Jerry Bohlander | 5-2-0 UFC | #2350 | |
 | Jesse Midas | 0-1-0 REC | #7206 | |
 | Jesse Murray | 0-1-0 REC | #5967 | |
 | Jesus Sanchez | 0-1-0 REC | #5009 |  |
 | Jhonathan Azevedo | 0-1-0 REC | #7396 |  |
 | Jimi Manuwa | 6-6-0 UFC | #1597 | |
 | Jimmy Crute | 6-4-2 UFC | #575 |  |
 | Jiri Prochazka | 6-3-0 UFC | #46 |  |
 | Joachim Christensen | 1-3-0 UFC | #3660 |  |
 | Joao Paulo Fagundes | 0-1-0 REC | #6774 | |
 | Joe Moreira | 1-1-0 UFC | #4472 | |
 | Joe Schilling | #7593 | | |
 | Joe Slick | 1-1-0 UFC | #5026 | |
 | Joe Taylor | 2-1-0 REC | #1325 | |