Poids Légers Hommes
 | Ylies Djiroun | 3-3-0 REC | #561 |  |
 | Yoislandy Izquierdo | 0-2-0 UFC | #4680 |  |
 | Yoshinori Horie | 0-1-0 UFC | #1396 |  |
 | Yuji Yannick Ephoeviga | 0-1-0 REC | #5417 | |
 | Yuki Kawana | 0-3-0 REC | #6411 | |
 | Yuki Kondo | 1-2-0 UFC | #3683 | |
 | Yuri Villefort | 0-2-0 UFC | #4300 |  |
 | Yusuf Ali-Taleb | 1-1-0 REC | #2672 |  |
 | Yusuf Nazokatov | 2-2-0 REC | #705 |  |
 | Yusuf Raisov | 1-0-0 REC | #3327 |  |
 | Yusuke Kasuya | 0-2-0 UFC | #4095 | |
 | Yusuke Yachi | 3-3-0 REC | #953 | |
 | Yves Edwards | 10-10-0, 1NC UFC | #1012 | |
 | Zach Gehl | 0-1-0 REC | #7637 |  |
 | Zach Lindsay | #7928 | | |
 | Zach Zane | 0-1-0 REC | #7470 | |
 | Zaki Mohsin | 0-2-0 REC | #4026 |  |
 | Zamir Aripshev | 0-1-0 REC | #6341 | |
 | Zaur Gadzhiev | 2-0-1 REC | #1749 |  |
 | Zelimkhan Yashurkaev | 2-0-0 REC | #2064 | |