Combattants Brésil
| 401 |  | Italo Cruz | 2-0-0 REC | #471 |  |
| 402 |  | Italo Gomes | 0-1-0 REC | #5764 | |
| 403 |  | Italo Julio | 0-1-0 REC | #6773 | |
| 404 |  | Iuri Alcantara | 10-7-0, 1NC UFC | #924 | |
| 405 |  | Ivan Jorge | 2-2-0 UFC | #3194 | |
| 406 |  | Jady Menezes | 2-0-0 REC | #2488 | |
| 407 |  | Jafel Filho | 3-2-0 UFC | #917 | |
| 408 |  | Jailton Almeida | 8-3-0 UFC | #219 | |
| 409 |  | Jair de Oliveira | 0-1-0 REC | #4468 | |
| 410 |  | Jair Farias | 0-1-0 REC | #6462 | |
| 411 |  | Jairo Pacheco | 0-2-0 REC | #5584 | |
| 412 |  | Janaina Silva | 0-3-0 REC | #3433 | |
| 413 |  | Janaisa Morandin | 0-2-0 REC | #4303 | |
| 414 |  | Janderson Barreto | 0-1-0 REC | #4680 | |
| 415 |  | Jansey Silva | 0-1-0 REC | #6519 | |
| 416 |  | Jaqueline Amorim | 4-2-0 UFC | #1239 | |
| 417 |  | Jaqueline Ferreira | #7291 | | |
| 418 |  | Jean Matos | 0-1-0 REC | #6829 | |
| 419 |  | Jean Matsumoto | 3-2-0 UFC | #856 | |
| 420 |  | Jean Sevalho | 1-0-0 REC | #1980 | |
| 421 |  | Jean Silva | 6-1-0 UFC | #93 | |
| 422 |  | Jeferson dos Santos | 0-1-0 REC | #5792 | |
| 423 |  | Jefferson Almeida | 0-1-0 REC | #3847 | |
| 424 |  | Jefferson Goncalves | 0-1-0 REC | #6050 | |
| 425 |  | Jefferson Nascimento | 2-0-0 REC | #1663 | |