Combattants Etats-Unis
| 1451 |  | Keegan Witbeck | 0-1-0 REC | #7322 |  |
| 1452 |  | Kegan Agnew | 0-1-0 REC | #7070 | |
| 1453 |  | Kegan Gennrich | 2-2-0 REC | #3683 | |
| 1454 |  | Keith Berish | 0-1-0, 1NC UFC | #4749 | |
| 1455 |  | Keith Hackney | 2-2-0 UFC | #2962 | |
| 1456 |  | Keith Jardine | 6-7-0 UFC | #1682 | |
| 1457 |  | Keith Mielke | 0-1-0 UFC | #6515 | |
| 1458 |  | Keith Rockel | 1-1-0 UFC | #5494 | |
| 1459 |  | Keith Wisniewski | 0-4-0 UFC | #4073 | |
| 1460 |  | Kellie Marin | 0-1-0 REC | #5478 | |
| 1461 |  | Kelly Dullanty | 0-1-0 UFC | #5982 | |
| 1462 |  | Kelly Faszholz | 0-2-0 UFC | #5096 | |
| 1463 |  | Kelly McGill-Velasco | 0-1-0 REC | #5548 | |
| 1464 |  | Kelsey DeSantis | 0-1-0 REC | #6040 | |
| 1465 |  | Kelvin Gastelum | 14-11-0, 1NC UFC | #215 | |
| 1466 |  | Kelvin Rayford | 0-1-0 REC | #6659 | |
| 1467 |  | Kelvin Sterling | 0-1-0 REC | #6015 | |
| 1468 |  | Kelvin Tiller | 3-4-0 REC | #3610 | |
| 1469 |  | Ken Burrs | 0-1-0 REC | #6202 | |
| 1470 |  | Ken Shamrock | 7-6-2 UFC | #588 | |
| 1471 |  | Ken Stone | 2-2-0 UFC | #3575 | |
| 1472 |  | Kendal Holowell | 0-2-0 REC | #5708 | |
| 1473 |  | Kendall Grove | 7-6-0 UFC | #1769 | |
| 1474 |  | Kendall Sandifer | 1-0-0 REC | #6165 | |
| 1475 |  | Kendall Whited | #7971 | |