Combattants Brésil
| 501 |  | John Lineker | 12-4-0 UFC | #510 |  |
| 502 |  | John Teixeira da Conceicao | 0-1-0 UFC | #3557 | |
| 503 |  | Johnny Eduardo | 3-5-0 UFC | #2986 | |
| 504 |  | Johnny Walker | 8-7-0, 1NC UFC | #316 | |
| 505 |  | Joice Mara | #7056 | | |
| 506 |  | Joilton Lutterbach | 0-3-0 REC | #4115 | |
| 507 |  | Jonas Bilharinho | 1-1-0 REC | #5732 | |
| 508 |  | Jonathan Caetano | 0-1-0 REC | #5640 | |
| 509 |  | Jonathan Elias | 0-1-0 REC | #6450 | |
| 510 |  | Jorge Bueno | 1-4-0 REC | #4241 | |
| 511 |  | Jorge de Oliveira | 0-2-0 UFC | #4951 | |
| 512 |  | Jorge Santiago | 1-5-0 UFC | #3608 | |
| 513 |  | Jose Aldo | 14-9-0 UFC | #73 | |
| 514 |  | Jose Augusto | 4-3-0 REC | #2340 | |
| 515 |  | Jose Carlos Lima | 0-1-0 REC | #6323 | |
| 516 |  | Jose Delano | 1-0-0 UFC | #1056 | |
| 517 |  | Jose Henrique | 1-0-0 UFC | #1664 | |
| 518 |  | Jose Luiz | 1-0-0 UFC | #542 | |
| 519 |  | Jose Marcos | 0-1-0 REC | #5822 | |
| 520 |  | Jose Maria Tome | 0-2-0 UFC | #5561 | |
| 521 |  | Joseilton Santos | 1-1-0 REC | #2904 | |
| 522 |  | Josenaldo Silva | 0-1-0 REC | #7451 | |
| 523 |  | Joseph Yohan | 0-1-0 REC | #6106 | |
| 524 |  | Josiane Nunes | 3-3-0 UFC | #2502 | |
| 525 |  | Josiane Oliveira | 0-1-0 REC | #7398 | |