| Fighter | Record | Last Bout |
|---|---|---|
| Nicolas Dalby | 24-6-1 (2 NC) | 2025-11-22 |
| Nicolle Caliari | 9-4-0 | 2026-05-16 |
| Nik Lentz | 30-12-2 (1 NC) | 2021-01-23 |
| Nikita Krylov | 31-12-0 | 2026-10-24 |
| Niklas Backstrom | 11-3-0 (1 NC) | 2015-06-20 |
| Niklas Stolze | 12-6-0 | 2022-06-04 |
| Niko Price | 16-11-0 (2 NC) | 2026-03-28 |
| Nikolas Motta | 15-6-0 (1 NC) | 2025-06-21 |
| Nikolay Veretennikov | 14-8-0 | 2026-05-16 |
| Nilson Rojas | 9-1-0 | 2026-08-29 |
| Nina Milosevic | 9-1-0 | 2026-08-01 |
| Nina Nunes | 11-7-0 | 2022-08-13 |
| Nissen Osterneck | 12-4-0 | 2009-04-01 |
| Noad Lahat | 11-2-0 | 2016-02-06 |
| Noah Gugnon | 10-2-0 | 2026-08-01 |
| Noe Hernandez | 5-5-0 | 1998-05-15 |
| Nohelin Hernandez | 9-4-0 | 2019-09-28 |
| Nolan Ticman | 4-3-0 | 2015-05-16 |
| Nora Cornolle | 10-4-0 | 2026-09-05 |
| Nordine Taleb | 15-7-0 | 2019-09-07 |
| Norifumi Yamamoto | 18-6-0 (2 NC) | 2015-02-28 |
| Norma Dumont | 13-3-0 | 2026-09-26 |
| Norman Parke | 23-6-1 | 2016-02-27 |
| Nursulton Ruziboev | 37-10-2 (2 NC) | 2026-09-05 |
| Nurullo Aliev | 12-0-0 | 2026-10-24 |
| Nyamjargal Tumendemberel | 10-1-0 | 2026-03-07 |
| Pedro Nobre | 18-4-2 (1 NC) | 2013-01-19 |
| Phillipe Nover | 11-8-1 | 2017-02-11 |
| Rafael Natal | 21-9-1 | 2017-07-22 |
| Ramsey Nijem | 9-6-0 | 2015-07-25 |
| Reza Nasri | 0-1-0 | 1996-09-20 |
| Rin Nakai | 19-2-1 | 2016-03-19 |
| Rinya Nakamura | 10-1-0 | 2026-09-26 |
| Rodrigo Nascimento | 11-3-0 (1 NC) | 2024-11-02 |
| Roger Narvaez | 8-3-0 | 2015-03-14 |
| Rogerio Nogueira | 23-10-0 | 2020-07-25 |
| Rose Namajunas | 15-8-0 | 2026-01-24 |
| Roy Nelson | 22-14-0 | 2017-04-15 |
| Sage Northcutt | 11-2-0 | 2018-07-14 |
| Said Nurmagomedov | 18-5-0 | 2025-07-26 |
| Shane Nelson | 16-7-0 | 2009-12-12 |
| Shayilan Nuerdanbieke | 39-12-0 | 2024-06-15 |
| Stanislav Nedkov | 12-2-0 (1 NC) | 2015-01-24 |
| Steve Nelmark | 2-1-0 | 1996-12-07 |
| Steven Nguyen | 10-2-0 | 2025-07-26 |
| Stewart Nicoll | 8-4-0 | 2026-07-18 |
| Tafon Nchukwi | 6-4-0 | 2023-08-12 |
| Taiyilake Nueraji | 12-1-0 (1 NC) | 2025-08-23 |
| Tom Niinimaki | 22-8-1 | 2014-12-20 |
| Tom Nolan | 11-1-0 | 2026-06-06 |