Poids Mi-Lourds Hommes
 | Karl Reed | 0-2-0 REC | #6282 |  |
 | Karlos Vemola | 2-4-0 UFC | #505 |  |
 | Kassoum Kone | 1-0-0 REC | #2378 |  |
 | Kazuo Takahashi | 1-0-0 UFC | #5091 |  |
 | Keith Berish | 0-1-0, 1NC UFC | #4843 | |
 | Keith Hackney | 2-2-0 UFC | #3026 | |
 | Keith Mielke | 0-1-0 UFC | #6769 | |
 | Kenneth Bergh | #7721 |  | |
 | Kevin Christian | 0-2-0 UFC | #2206 |  |
 | Kevin Jackson | 2-2-0 UFC | #3309 | |
 | Kevin Randleman | 4-3-0 UFC | #1200 | |
 | Kevin Tchoupa | #8151 |  | |
 | Khabib Nabiev | 0-1-0 REC | #4653 |  |
 | Khalid Murtazaliev | 1-0-0 UFC | #3709 | |
 | Khalil Rountree | 10-7-0, 1NC UFC | #127 | |
 | Khuseyn Tatalaev | 0-1-0 REC | #7356 | |
 | Kleber Silva | 2-3-0 REC | #3883 | |
 | Kory Moegenburg | 0-2-0 REC | #5364 | |
 | Kris Rotharmel | 0-1-0 UFC | #7515 | |
 | Krzysztof Glowacki | 1-1-0, 1NC REC | #4604 |  |