Poids Légers Hommes
 | Noah Bey | 3-2-0 REC | #651 |  |
 | Noah Gasho | 3-0-0 REC | #1089 | |
 | Noah Gugnon | 1-0-0 UFC | #119 |  |
 | Nobumitsu Osawa | 0-1-0 REC | #6680 |  |
 | Noe Dellachi | 1-0-0 REC | #2404 | |
 | Nonato Junior | 0-3-0 REC | #3528 |  |
 | Nurkhan Zhumagazy | 2-0-0 REC | #1449 |  |
 | Nursultan Jumadilde | 0-1-0 REC | #7643 |  |
 | Nurullo Aliev | 4-0-0 UFC | #372 |  |
 | Ognjen Dimic | 0-3-0 REC | #3581 |  |
 | Oleksandr Moisa | 2-1-0 REC | #1211 |  |
 | Olivier Aubin-Mercier | 7-5-0 UFC | #186 |  |
 | Omar Morales | 3-4-0 UFC | #2554 |  |
 | Omar Reguigui | 0-1-0, 1NC REC | #4626 |  |
 | Omar Tugarev | 0-2-0 REC | #4428 |  |
 | Omiel Brown | 9-3-0 REC | #474 |  |
 | Ondrej Petrasek | 1-1-0 REC | #6871 |  |
 | Orlando Wilson Prins | 2-4-0 REC | #3282 |  |
 | Oron Kahlon | 0-1-0 REC | #5632 |  |
 | Oscar Mendez | 0-1-0 REC | #5179 |  |