Poids Moyens Hommes
 | Kenichi Yamamoto | 2-1-0 UFC | #3177 |  |
 | Kennedy Rayomba | 0-2-0 REC | #3677 |  |
 | Kerim Engizek | 6-1-0 REC | #685 |  |
 | Kevin Casey | 1-3-1, 2NC UFC | #3365 |  |
 | Kevin Del | 1-0-0 REC | #5031 |  |
 | Kevin Hangs | 0-1-0 REC | #6463 | |
 | Keyes Nelson | 0-1-0 REC | #6800 | |
 | Khadzhimurat Bestaev | 0-2-0 REC | #5491 |  |
 | Khamzat Chimaev | 9-0-0 UFC | #10 |  |
 | Kirill Medvedovski | 0-1-0 REC | #7032 |  |
 | Konrad Rusinski | 2-2-0 REC | #1453 |  |
 | Korey Kuppe | 0-3-0 REC | #4923 | |
 | Kris McCray | 0-3-0 UFC | #3983 | |
 | Krystian Bielski | 1-3-0 REC | #4718 | |
 | Krzysztof Jotko | 11-6-0 UFC | #122 | |
 | Kyle Daukaus | 4-4-0, 1NC UFC | #457 | |
 | Kyle McClurkin | 1-0-0 REC | #6513 |  |
 | Kyle Stewart | 0-2-0 UFC | #4112 | |
 | Laid Zerhouni | 4-2-0 REC | #1010 | |
 | Lance Gibson Sr. | 1-1-0 UFC | #3911 |  |