Poids Mouches Hommes
 | Yntymak Glamidin | 0-1-0 REC | #6258 |  |
| Yowanis Houmadi | 0-1-0 REC | #7821 |  |
 | Yuki Ito | 4-2-0 REC | #1142 |  |
 | Yuki Motoya | 5-3-0 REC | #1470 | |
 | Yuma Horiuchi | 0-1-0 REC | #7229 | |
 | Yumeto Mizuno | #8033 | | |
 | Yunus Khiziev | #8000 |  | |
 | Yuri Suda | 0-1-0 REC | #6532 | |
 | Yutaro Muramoto | 0-1-0 REC | #7611 | |
 | Yuya Shibata | 0-1-0 REC | #6181 | |
 | Yve Nelson | 1-0-0 REC | #1873 |  |
 | Zach Makovsky | 3-4-0 UFC | #3260 | |
 | Zarrukh Adashev | 1-3-0 UFC | #3480 |  |
 | Zelim Umarov | 1-0-0 REC | #1585 | |
 | Zelimkham Khatuev | 1-1-0 REC | #2431 | |
 | Zelimkhan Islamov | 0-1-0 REC | #6346 | |
 | Zhalgas Zhumagulov | 1-6-0 UFC | #1193 |  |
 | Zhifa Shang | 0-1-0 REC | #6548 |  |
 | Zhikui Yao | 1-3-0 UFC | #3933 | |
 | Zoran Milic | 0-1-0 REC | #6967 |  |