Tous les combattants
 | Kaleo Meheula | #7343 |  | |
 | Kali Robbins | 0-1-0 REC | #6424 | |
 | Kalib Starnes | 2-3-0 UFC | #3597 |  |
 | Kalindra Faria | 0-3-0 UFC | #3870 |  |
 | Kallum Parker | 1-4-0 REC | #4618 |  |
 | Kaloyan Kolev | 0-1-0 REC | #5822 |  |
 | Kamal Dzhalavov | 1-0-0 REC | #3097 |  |
 | Kamal Mamedov | 0-3-0 REC | #3497 | |
 | Kamal Shalorus | 0-3-0 UFC | #2698 |  |
 | Kamaru Usman | 16-4-0 UFC | #26 |  |
 | Kamil Gawryjolek | 2-2-0 REC | #3939 |  |
 | Kamil Minda | 2-2-0 REC | #4979 | |
 | Kamil Oniszczuk | 3-3-0 REC | #570 | |
 | Kamil Saidov | 1-0-0 REC | #2378 | |
 | Kamil Szkaradek | 5-1-0 REC | #1394 | |
 | Kamil Wojciechowski | 0-2-0 REC | #6145 | |
 | Kamila Simkova | 0-1-0 REC | #4495 |  |
 | Kamuela Kirk | 1-2-0 UFC | #3921 | |
 | Kana Watanabe | 3-4-0 REC | #2627 |  |
 | Kanako Murata | 1-2-0 UFC | #4224 | |
 | Kane Mousah | 1-3-0 REC | #3834 | |
| Kanean Catron | 1-0-0 REC | #1452 | |
 | Kangjie Zhu | 0-1-0 UFC | #2147 |  |
 | Kanna Asakura | 0-1-0 REC | #6659 | |
 | Kanybek Zhanybekov | 0-2-0 REC | #4847 |  |