Tous les combattants
 | Nuno Costa | 0-1-0 REC | #5416 |  |
 | Nurbek Abdykadyrov | 0-1-0 REC | #7279 |  |
 | Nurbolat Abu | 0-1-0 REC | #6984 |  |
| Nurgazy Akylbek Uulu | #7285 | | |
 | Nurkhan Zhumagazy | 2-0-0 REC | #1449 | |
 | Nursultan Jumadilde | 0-1-0 REC | #7643 | |
 | Nursulton Ruziboev | 5-1-0 UFC | #279 |  |
 | Nurullo Aliev | 4-0-0 UFC | #372 |  |
 | Nurumar Akhmataliev | #7941 | | |
 | Nyamjargal Tumendemberel | 2-1-0 UFC | #1057 |  |
 | Nyle Bartling | 0-1-0 REC | #6468 |  |
 | O. Mandt Johnsen | 0-1-0 REC | #8005 |  |
 | Oban Elliott | 3-3-0 UFC | #1082 |  |
 | Oceane Samson | 2-0-0 REC | #1316 |  |
 | Ode Osbourne | 5-7-0, 1NC UFC | #1011 | |
 | Oganes Voskanyan | 1-2-0 REC | #2493 |  |
 | Ognjen Dimic | 0-3-0 REC | #3581 |  |
 | Ole Hetleflat | 1-0-0 REC | #2510 | |
 | Ole Magnor | 2-2-0 REC | #4583 | |
 | Oleg Borisov | 2-1-0 REC | #2632 | |
 | Oleg Dadonov | 1-1-0 REC | #2047 | |
 | Oleg Nagorny | 0-1-0 REC | #7524 |  |
 | Oleg Olenichev | 0-1-0 REC | #5939 | |
 | Oleg Popov | 7-1-0 REC | #1145 | |
 | Oleg Taktarov | 6-2-1 UFC | #1853 | |