Combattants Brésil
| 401 |  | Inglesson de Lara | 1-2-0 REC | #3367 |  |
| 402 |  | Ingrid Silva | 1-0-0 REC | #2279 | |
| 403 |  | Irlaine Gasai | 0-1-0 REC | #7340 | |
| 404 |  | Isabela de Padua | 0-1-0 REC | #6691 | |
| 405 |  | Isabella de Padua | 0-1-0 UFC | #6311 | |
| 406 |  | Isaias Simoes | 0-1-0 REC | #7053 | |
| 407 |  | Ismael Bonfim | 2-3-0 UFC | #892 | |
| 408 |  | Istela Nunes | 0-5-0 UFC | #2593 | |
| 409 |  | Italo Cruz | 2-1-0 REC | #812 | |
| 410 |  | Italo Gomes | 0-2-0 REC | #3917 | |
| 411 |  | Italo Julio | 0-1-0 REC | #7032 | |
| 412 |  | Italo Ribeiro | 0-2-0 REC | #5440 | |
| 413 |  | Iuri Alcantara | 10-7-0, 1NC UFC | #999 | |
| 414 |  | Ivan Jorge | 2-2-0 UFC | #3310 | |
| 415 |  | Izaque Simao | 0-1-0 REC | #6457 | |
| 416 |  | Jady Menezes | 2-0-0 REC | #2725 | |
| 417 |  | Jafel Filho | 3-3-0 UFC | #998 | |
| 418 |  | Jailton Almeida | 8-3-0 UFC | #313 | |
| 419 |  | Jair de Oliveira | 0-1-0 REC | #4755 | |
| 420 |  | Jair Farias | 0-1-0 REC | #6536 | |
| 421 |  | Jairo Pacheco | 0-2-0 REC | #5806 | |
| 422 |  | Janaina Silva | 0-3-0 REC | #3677 | |
| 423 |  | Janaisa Morandin | 0-2-0 REC | #4481 | |
| 424 |  | Janderson Barreto | 0-1-0 REC | #4906 | |
| 425 |  | Jansey Silva | 0-1-0 REC | #6826 | |