Poids Plumes Hommes
 | Kazuki Aimoto | #7893 |  | |
 | Kazumasa Majima | 2-1-0 REC | #1093 | |
 | Keegan Witbeck | 0-1-0 REC | #7570 |  |
 | Keiichiro Nakamura | 3-0-0 REC | #1285 | |
 | Keisuke Sasu | 1-4-0 REC | #3086 | |
 | Keith Keogh | 3-0-0 REC | #1225 |  |
 | Kenny Florian | 12-5-0 UFC | #473 | |
 | Keremuaili Maimaitituoheti | 0-1-0 REC | #7041 |  |
 | Kestin McClain | 1-0-0 REC | #1908 | |
 | Kevin Aguilar | 2-4-0 UFC | #3059 | |
 | Kevin Boehm | 0-2-0 REC | #5779 | |
 | Kevin Croom | 0-3-0, 1NC UFC | #4423 | |
 | Kevin Judes | 1-0-0 REC | #7809 |  |
 | Kevin Petshi | 0-1-0 REC | #5410 | |
 | Kevin Rosas | #7959 | | |
 | Kevin Vallejos | 4-0-0 UFC | #222 |  |
 | Keweny Lopes | 3-4-0 REC | #2548 |  |
 | Khakimzhan Davronov | 0-1-0 REC | #7121 |  |
 | Khalid Musaev | 0-1-0 REC | #6339 | |
 | Khalid Taha | 1-4-0, 1NC UFC | #1549 |  |