Tous les combattants
 | Konmon Deh | 0-2-0 REC | #4972 |  |
 | Konrad Dyrschka | 3-0-0 REC | #2316 |  |
 | Konrad Rusinski | 3-3-0 REC | #541 |  |
 | Konstantin Erokhin | 0-2-0 UFC | #4993 |  |
 | Konstantin Podoynitsyn | 0-1-0 REC | #6055 | |
 | Konstantinos Ntelis | 3-1-0 REC | #1160 |  |
 | Korey Kuppe | 0-3-0 REC | #5139 |  |
 | Korey Taylor | 0-1-0 REC | #5471 |  |
 | Korey Windham | 0-1-0 REC | #7302 | |
 | Kory Moegenburg | 0-2-0 REC | #5265 | |
 | Kostadin Enev | 0-1-0 REC | #7754 |  |
 | Kosuke Terashima | 0-1-0 REC | #5952 |  |
 | Kota Miura | 0-2-0 REC | #2140 | |
 | Kouki Nakagawa | 1-0-0 REC | #1982 | |
 | Kousuke Kindaichi | 0-1-0 REC | #6350 | |
 | Kousuke Sugimura | 1-0-0 REC | #2867 | |
 | Kouya Kanda | 1-1-0 REC | #6281 | |
 | Kovacs Zsombor | 0-1-0 REC | #7862 |  |
 | Koyomi Matsushima | 1-2-0 REC | #4209 | |
 | Kris McCray | 0-3-0 UFC | #4242 | |
 | Kris Moutinho | 0-4-0 UFC | #2156 | |
 | Kris Rotharmel | 0-1-0 UFC | #7312 | |
 | Krissa Timbs | #7799 | | |
 | Kristians Boguzs | 1-0-0 REC | #1599 |  |
 | Kristiany Carvalho | #7950 |  |