Themiddleweight division inmixed martial arts refers to different weight classes:
For the sake of uniformity, many mixed martial arts websites refer to competitors between 171 and 185 lb (77.5 and 84 kg) as middleweights. This encompasses Shooto's light heavyweight division of the same weight limit.
The middleweight limit, as defined by theNevada State Athletic Commission[1] and theAssociation of Boxing Commissions[2] is 185 lb (84 kg).
This table last updated in August 2025.
| Organization | Reign Began | Champion | Record | Defenses |
|---|---|---|---|---|
| UFC | August 16, 2025 |  Khamzat Chimaev | 15–0 (6KO 6SUB) | 0 |
| PFL | July 19, 2025 |  Costello van Steenis | 16–3 (4KO 9SUB) | 0 |
| ONE Championship | March 1, 2024 |  Anatoly Malykhin | 14–1 (10KO 4SUB) | 0 |
| Fight Nights Global | September 9, 2020 | Vladimir Mineev | 16–1–1 (9KO 3SUB) | 0 |
| KSW | June 3, 2023 |  Paweł Pawlak | 24–4–1 (11KO 3SUB) | 2 |
| Cage Warriors | April 2, 2022 |  Christian Leroy Duncan | 8–0 (6KO 1SUB) | 1 |
| ACA | April 9, 2021 | Magomedrasul Gasanov | 18–2 (5KO 1SUB) | 2 |
| Road FC | July 3, 2021 |  In Su Hwang | 6–1 (6KO 0SUB) | 0 |
| Legacy Fighting Alliance |  Lucas Fernando | 9–1 (5KO 2SUB) | 0 | |
| URCC | January 7, 2017 |  Chris Hofmann | 8–1 (7KO) | 1 |