Poids Mi-Moyens Hommes
 | Niklas Stolze | 0-3-0 UFC | #2063 |  |
 | Niko Price | 8-11-0, 2NC UFC | #765 |  |
 | Nikola Jankovic | #8150 |  | |
 | Nikola Joksovic | 4-0-0, 1NC REC | #2075 |  |
 | Nikolay Aleksakhin | 2-4-0, 1NC REC | #1447 |  |
 | Nikolay Veretennikov | 2-4-0 UFC | #1069 |  |
 | Noah Lindsey | 0-1-0 REC | #7494 | |
 | Nordine Taleb | 7-5-0 UFC | #949 |  |
 | O. Mandt Johnsen | 0-1-0 REC | #8042 |  |
 | Oban Elliott | 3-3-0 UFC | #1107 |  |
 | Oganes Voskanyan | 1-2-0 REC | #2576 | |
 | Oleg Dadonov | 1-1-0 REC | #2137 | |
 | Olendet Apouassa Romeo | 0-1-0 REC | #5687 |  |
 | Oliver Enkamp | 0-2-0 UFC | #3839 |  |
 | Olivier Fleurmon | 1-0-0 REC | #2231 | |
 | Olli Santalahti | 2-3-0 REC | #3564 |  |
 | Omar El Dafrawy | 6-1-0 REC | #429 |  |
 | Omar Hussein | 1-2-0 REC | #779 |  |
 | Omar Santana | 0-1-0 REC | #7360 |  |
 | Omari Akhmedov | 9-5-1 UFC | #608 | |