Combattants Etats-Unis
| 1426 |  | Katherine Corogenes | 0-2-0 REC | #6135 |  |
| 1427 |  | Kathryn Paprocki | 0-1-0 REC | #7094 | |
| 1428 |  | Katie Perez | 0-2-0 REC | #4108 | |
| 1429 |  | Katlyn Cerminara | 11-6-0 UFC | #509 | |
| 1430 |  | Kay Hansen | 1-3-0 UFC | #3164 | |
| 1431 |  | Kayara Hartfield | 1-0-0 REC | #666 | |
| 1432 |  | Kayla Harrison | 3-0-0 UFC | #6 | |
| 1433 |  | Kayla Yontef | 1-0-0 REC | #5454 | |
| 1434 |  | Kaytlin Neil | 2-1-0 REC | #3951 | |
| 1435 |  | Keegan Witbeck | 0-1-0 REC | #7238 | |
| 1436 |  | Kegan Agnew | 0-1-0 REC | #6755 | |
| 1437 |  | Kegan Gennrich | 2-2-0 REC | #3498 | |
| 1438 |  | Keith Berish | 0-1-0, 1NC UFC | #4574 | |
| 1439 |  | Keith Hackney | 2-2-0 UFC | #2875 | |
| 1440 |  | Keith Jardine | 6-7-0 UFC | #1665 | |
| 1441 |  | Keith Mielke | 0-1-0 UFC | #6176 | |
| 1442 |  | Keith Rockel | 1-1-0 UFC | #5430 | |
| 1443 |  | Keith Wisniewski | 0-4-0 UFC | #3958 | |
| 1444 |  | Kellie Marin | 0-1-0 REC | #5151 | |
| 1445 |  | Kelly Dullanty | 0-1-0 UFC | #5987 | |
| 1446 |  | Kelly Faszholz | 0-2-0 UFC | #4925 | |
| 1447 |  | Kelly McGill-Velasco | 0-1-0 REC | #5252 | |
| 1448 |  | Kelsey DeSantis | 0-1-0 REC | #6364 | |
| 1449 |  | Kelvin Gastelum | 14-11-0, 1NC UFC | #195 | |
| 1450 |  | Kelvin Rayford | 0-1-0 REC | #6280 | |