Combattants Brésil
| 426 |  | Inglesson de Lara | 1-2-0 REC | #3804 |  |
| 427 |  | Ingrid Silva | 1-0-0 REC | #2757 | |
| 428 |  | Irlaine Gasai | 0-1-0 REC | #7790 | |
| 429 |  | Isabela de Padua | 0-1-0 REC | #7225 | |
| 430 |  | Isabella de Padua | 0-1-0 UFC | #6714 | |
| 431 |  | Isaias Simoes | 0-1-0 REC | #7551 | |
| 432 |  | Ismael Bonfim | 2-4-0 UFC | #424 | |
| 433 |  | Istela Nunes | 0-5-0 UFC | #2818 | |
| 434 |  | Italo Cruz | 2-1-0 REC | #1707 | |
| 435 |  | Italo Gomes | 0-2-0 REC | #4490 | |
| 436 |  | Italo Julio | 0-1-0 REC | #7479 | |
| 437 |  | Italo Ribeiro | 0-2-0 REC | #5734 | |
| 438 |  | Iuri Alcantara | 10-7-0, 1NC UFC | #1013 | |
| 439 |  | Ivan Alves | 0-1-0 REC | #6992 | |
| 440 |  | Ivan Jorge | 2-2-0 UFC | #3540 | |
| 441 |  | Izaque Simao | 0-1-0 REC | #7360 | |
| 442 | | Jackson Soares | 0-1-0 REC | #8232 | |
| 443 |  | Jady Menezes | 2-0-0 REC | #3207 | |
| 444 |  | Jafel Filho | 3-3-0 UFC | #1413 | |
| 445 |  | Jailton Almeida | 8-3-0 UFC | #458 | |
| 446 |  | Jair de Oliveira | 0-1-0 REC | #5417 | |
| 447 |  | Jair Farias | 0-1-0 REC | #7391 | |
| 448 |  | Jairo Pacheco | 0-2-0 REC | #6236 | |
| 449 |  | Janaina Silva | 0-3-0 REC | #4097 | |
| 450 |  | Janaisa Morandin | 0-2-0 REC | #5030 | |