Poids Légers Hommes
 | Ylian Belhadj | 1-0-0 REC | #8085 |  |
 | Ylies Djiroun | 3-3-0 REC | #905 | |
 | Yoislandy Izquierdo | 0-2-0 UFC | #4816 |  |
 | Yoshinori Horie | 0-1-0 UFC | #1747 |  |
 | Youssef Boughanem | #5751 |  | |
 | Yuji Yannick Ephoeviga | 0-1-0 REC | #5704 | |
 | Yuki Kawana | 0-3-0 REC | #6456 | |
 | Yuki Kondo | 1-2-0 UFC | #3791 | |
 | Yuri Villefort | 0-2-0 UFC | #4464 |  |
 | Yusuf Ali-Taleb | 1-1-0 REC | #2923 |  |
 | Yusuf Nazokatov | 2-2-0 REC | #1139 |  |
 | Yusuf Raisov | 1-0-0 REC | #3479 |  |
 | Yusuke Kasuya | 0-2-0 UFC | #4057 | |
 | Yusuke Yachi | 3-3-0 REC | #1289 | |
 | Yves Edwards | 10-10-0, 1NC UFC | #1005 | |
 | Zach Gehl | 0-1-0 REC | #7793 |  |
 | Zach Lindsay | #8107 | | |
 | Zach Zane | 0-1-0 REC | #7549 | |
 | Zaki Mohsin | 0-2-0 REC | #4242 |  |
 | Zamir Aripshev | 0-1-0 REC | #6485 | |