Tous les combattants
 | Katherine Corogenes | 0-2-0 REC | #6710 |  |
 | Kathryn Paprocki | 0-1-0 REC | #7100 | |
 | Katie Perez | 0-3-0 REC | #3641 | |
 | Katie Saull | 1-3-0 REC | #4107 |  |
 | Katlyn Cerminara | 11-6-0 UFC | #521 | |
 | Katsuhisa Fujii | 1-1-0 UFC | #5649 |  |
 | Katsunori Kikuno | 2-3-0 UFC | #3493 | |
 | Katsuyoshi Sasaki | 0-1-0 REC | #7333 | |
 | Kaua Fernandes | 0-1-0 REC | #7171 |  |
 | Kauan Leopoldina | 0-1-0 REC | #6345 | |
 | Kaue Fernandes | 3-2-0 UFC | #632 | |
 | Kaue Vaz | 0-1-0 REC | #5284 | |
 | Kaushik Saikumar | 0-1-0 REC | #4876 |  |
 | Kay Hansen | 1-3-0 UFC | #3262 | |
 | Kayara Hartfield | 1-0-0 REC | #1641 | |
 | Kayck Alencar | 0-1-0 REC | #6275 | |
 | Kayla Harrison | 3-0-0 UFC | #7 | |
 | Kayla Yontef | 1-0-0 REC | #5583 | |
 | Kaynan Kruschewsky | 0-2-0 UFC | #4012 | |
 | Kaytlin Neil | 2-1-0 REC | #4172 | |
 | Kazakbai Tilenov | 0-1-0 REC | #6460 |  |
 | Kazbek Damaev | 0-1-0 REC | #6701 |  |
 | Kazuhiro Nakamura | 0-2-0 UFC | #4993 | |
 | Kazuki Aimoto | #7980 | | |
 | Kazuki Tokudome | 1-3-0 UFC | #4076 | |