Poids Légers Hommes
 | Ylies Djiroun | 3-3-0 REC | #620 |  |
 | Yoislandy Izquierdo | 0-2-0 UFC | #4675 |  |
 | Yoshinori Horie | 0-1-0 UFC | #1443 |  |
 | Yuji Yannick Ephoeviga | 0-1-0 REC | #5450 | |
 | Yuki Kawana | 0-3-0 REC | #6417 | |
 | Yuki Kondo | 1-2-0 UFC | #3696 | |
 | Yuri Villefort | 0-2-0 UFC | #4264 |  |
 | Yusuf Ali-Taleb | 1-1-0 REC | #2699 |  |
 | Yusuf Nazokatov | 2-2-0 REC | #761 |  |
 | Yusuf Raisov | 1-0-0 REC | #3329 |  |
 | Yusuke Kasuya | 0-2-0 UFC | #4089 | |
 | Yusuke Yachi | 3-3-0 REC | #996 | |
 | Yves Edwards | 10-10-0, 1NC UFC | #1015 | |
 | Zach Gehl | 0-1-0 REC | #7662 |  |
 | Zach Lindsay | #7947 | | |
 | Zach Zane | 0-1-0 REC | #7507 | |
 | Zaki Mohsin | 0-2-0 REC | #4046 |  |
 | Zamir Aripshev | 0-1-0 REC | #6361 | |
 | Zaur Gadzhiev | 2-0-1 REC | #1782 |  |
 | Zelimkhan Yashurkaev | 2-0-0 REC | #2101 | |