Tous les combattants
 | Jamshed Ganiev | 2-0-0 REC | #1187 |  |
 | Jamshid Tilyaev | #7923 |  | |
 | Jan Blachowicz | 12-9-2 UFC | #54 |  |
 | Jan Cieplowski | 1-1-0 REC | #2655 | |
 | Jan Fajk | 2-1-0 REC | #4916 |  |
 | Jan Gottvald | 1-0-0 REC | #7264 | |
 | Jan Holzer | 1-0-0 REC | #1245 |  |
 | Jan Malach | 4-7-0 REC | #915 | |
 | Jan Masek | 2-3-0 REC | #2200 | |
 | Jan Quaeyhaegens | 3-1-0 REC | #3856 |  |
 | Jan Siroky | 3-7-0 REC | #3289 | |
 | Jan Stanovsky | 3-2-0 REC | #1044 | |
 | Jan Stastny | #8082 | | |
 | Janaina Silva | 0-3-0 REC | #4036 |  |
 | Janaisa Morandin | 0-2-0 REC | #4950 | |
 | Janay Harding | 0-2-0 REC | #5220 |  |
 | Janderson Barreto | 0-1-0 REC | #5399 | |
 | Jane Osigwe | 0-1-0 REC | #5344 |  |
 | Janne Elonen-Kulmala | 0-4-0 REC | #4758 |  |
 | Jansey Silva | 0-1-0 REC | #7090 | |
 | Jaqueline Amorim | 5-2-0 UFC | #497 | |
 | Jaqueline Ferreira | #7812 | | |
 | Jared Braun | 0-2-0 REC | #4382 |  |
 | Jared Cannonier | 11-10-0 UFC | #204 | |
 | Jared Ferrera | 0-1-0 REC | #7164 | |