Poids Légers Hommes
 | Yann Liasse | 1-2-0, 1NC REC | #4186 |  |
 | Yasir Iliev | 1-0-0 REC | #1939 |  |
 | Yawei Ren | 1-1-0 REC | #2619 |  |
 | Yazid Chouchane | 2-2-0 REC | #2966 |  |
 | Yincang Bao | 0-2-0 REC | #6491 | |
 | Ylian Belhadj | 1-0-0 REC | #7816 | |
 | Ylies Djiroun | 3-3-0 REC | #439 | |
 | Yoislandy Izquierdo | 0-2-0 UFC | #4627 |  |
 | Yoshinori Horie | 0-1-0 UFC | #1248 |  |
 | Yuji Yannick Ephoeviga | 0-1-0 REC | #5423 | |
 | Yuki Kawana | 0-3-0 REC | #6427 | |
 | Yuki Kondo | 1-2-0 UFC | #3640 | |
 | Yuri Villefort | 0-2-0 UFC | #4265 |  |
 | Yusuf Ali-Taleb | 1-1-0 REC | #2578 |  |
 | Yusuf Nazokatov | 2-2-0 REC | #557 |  |
 | Yusuf Raisov | 1-0-0 REC | #3237 | |
 | Yusuke Kasuya | 0-2-0 UFC | #4133 | |
 | Yusuke Yachi | 3-3-0 REC | #805 | |
 | Yusup-Khadzhi Zubariev | 3-2-0 REC | #1370 | |
 | Yves Edwards | 10-10-0, 1NC UFC | #991 | |