Combattants Brésil
| 526 |  | Kaue Fernandes | 3-1-0 UFC | #1002 |  |
| 527 |  | Kaue Vaz | 0-1-0 REC | #4691 | |
| 528 |  | Kaynan Kruschewsky | 0-2-0 UFC | #3830 | |
| 529 |  | Kelly Ottoni | 0-1-0 REC | #7228 | |
| 530 |  | Kerisson Leal | 0-2-0 REC | #6999 | |
| 531 |  | Ketlen Souza | 3-3-0 UFC | #959 | |
| 532 |  | Ketlen Vieira | 9-5-0 UFC | #138 | |
| 533 |  | Kevin Christian | 0-1-0 UFC | #2547 | |
| 534 |  | Keweny Lopes | 3-3-0 REC | #2661 | |
| 535 |  | Killys Mota | 3-1-0 REC | #3509 | |
| 536 |  | Kleber Koike Erbst | 2-3-0 REC | #1465 | |
| 537 |  | Kleber Silva | 2-3-0 REC | #3503 | |
| 538 |  | Kleberson Sousa | 0-1-0 REC | #6349 | |
| 539 |  | Kleydson Rodrigues | 1-3-0 UFC | #3136 | |
| 540 |  | Klidson Abreu | 1-2-0, 1NC UFC | #1288 | |
| 541 |  | Kron Gracie | 1-3-0 UFC | #2396 | |
| 542 |  | Lany Silva | 3-2-0 REC | #2440 | |
| 543 |  | Lara Procopio | 1-2-0 UFC | #4305 | |
| 544 |  | Larissa Pacheco | 0-2-0 UFC | #554 | |
| 545 |  | Lazaro Junior | 0-1-0 REC | #5068 | |
| 546 |  | Leandro Barbosa | 0-1-0 REC | #7101 | |
| 547 |  | Leandro Camargo | 0-2-0 REC | #3950 | |
| 548 |  | Leandro Higo | 2-2-0 REC | #3323 | |
| 549 |  | Leandro Issa | 2-3-0 UFC | #3442 | |
| 550 |  | Leandro Silva | 3-4-0, 1NC UFC | #1478 | |