Heavyweight (MMA)
The heavyweight division in mixed martial arts generally groups fighters between.
Although many ambiguities exist within the lowerweight classes regarding division naming and weight limits, the Heavyweight division is, for the most part, uniform. The Ultimate Fighting Championship and most other North American MMA organizations such as Bellator MMA, WSOF, and King of the Cage abide by this interpretation to their 206–265 lb athletes as heavyweights. Pancrase's overweight division was before being revised to its current.
The heavyweight upper weight limit, as defined by the Nevada State Athletic Commission and the Association of Boxing Commissions is.Professional champions
Current champions
This table was last updated in August 2019.
| Organization | Reign Began | Champion | Record | Defenses |
| UFC | August 17, 2019 |  Stipe Miocic | 19–3 | 0 |
| Bellator MMA | January 26, 2019 | Ryan Bader | 27–5 | 0 |
| Cage Warriors | July 10, 2020 |  Andrew Dunkerley | 15-0 | 0 |
| Legacy Fighting Alliance | | Brett Martin | 9–1 | 0 |
| Fight Nights Global | | Vacant | | |
| ACA | | Vacant | | |
| ONE Championship | December 11, 2015 |  Brandon Vera | 16–8 | 2 |
| KSW | April 14, 2018 |  Phil De Fries | 17–6 | 3 |
Most wins in heavyweight title bouts
| Name | Promotion | Title bout wins |
| 1. | Randy Couture | UFC | 6 |
| 2. | Stipe Miocic | UFC | 5 |
| 2. | Tim Sylvia | UFC | 5 |
| 4. | Cain Velasquez | UFC | 4 |
| 4. |  Fedor Emelianenko | Pride | 4 |
| 6. |  Antonio Rodrigo Nogueira | UFC, Pride | 3 |
| 6. |  Andrei Arlovski | UFC | 3 |
| 6. | Brock Lesnar | UFC | 3 |
| 6. | Daniel Cormier | UFC, Strikeforce | 3 |
| 10. |  Alistair Overeem | Strikeforce | 2 |
| 10. | Frank Mir | UFC | 2 |
| 10. | Fabricio Werdum | UFC | 2 |
| 10. | Kevin Randleman | UFC | 2 |
| 10. | Maurice Smith | UFC | 2 |
| 10. | Ron Waterman | WEC | 2 |
| 10. | James Irvin | WEC | 2 |
| 10. | Brian Olsen | WEC | 2 |
Most consecutive defenses of heavyweight title
