Combattants Etats-Unis
| 1476 |  | Kanean Catron | 1-0-0 REC | #1991 |  |
| 1477 |  | Kara Marie Vislosky | 0-1-0 REC | #6664 | |
| 1478 |  | Karl Reed | 0-2-0 REC | #6389 | |
| 1479 |  | Karl Roberson | 4-6-0 UFC | #2139 | |
| 1480 |  | Karo Parisyan | 8-4-0, 1NC UFC | #1253 | |
| 1481 | | Kase Tucker | #8097 | | |
| 1482 |  | Kasey Tanner | 3-1-0 REC | #2437 | |
| 1483 |  | Kassius Kayne | 0-1-0 REC | #8033 | |
| 1484 |  | Katarina Legorreta | 0-1-0 REC | #6343 | |
| 1485 |  | Katherine Corogenes | 0-2-0 REC | #6939 | |
| 1486 |  | Kathryn Paprocki | 0-1-0 REC | #7176 | |
| 1487 |  | Katie Perez | 0-3-0 REC | #3774 | |
| 1488 |  | Katlyn Cerminara | 11-6-0 UFC | #534 | |
| 1489 |  | Kay Hansen | 1-3-0 UFC | #3322 | |
| 1490 |  | Kayara Hartfield | 1-0-0 REC | #1901 | |
| 1491 |  | Kayla Harrison | 3-0-0 UFC | #8 | |
| 1492 |  | Kayla Yontef | 1-0-0 REC | #5641 | |
| 1493 |  | Kaytlin Neil | 2-1-0 REC | #4295 | |
| 1494 |  | Keegan Witbeck | 0-1-0 REC | #7859 | |
| 1495 |  | Kegan Agnew | 0-1-0 REC | #7583 | |
| 1496 |  | Kegan Gennrich | 3-2-0 REC | #1548 | |
| 1497 |  | Keith Berish | 0-1-0, 1NC UFC | #5035 | |
| 1498 |  | Keith Hackney | 2-2-0 UFC | #3091 | |
| 1499 |  | Keith Jardine | 6-7-0 UFC | #1758 | |
| 1500 |  | Keith Mielke | 0-1-0 UFC | #7047 | |