Featherweight (MMA)
The featherweight division in mixed martial arts refers to different weight classes:
- The UFC's featherweight division, which groups competitors within 136 to 145 lb
- The Shooto's featherweight division, which limits competitors to 135 lb
- The ONE Championship's featherweight division, with upper limit at
- The Road FC's featherweight division, with upper limit at 144.4 lb
Ambiguity and clarification
King of the Cage refers to its 145 lb division as bantamweight whereas Shooto refers to its 143 lb division as lightweight. The UFC uses the Nevada definition of "featherweight".
The featherweight limit, as defined by the Nevada State Athletic Commission and the Association of Boxing Commissions is 145 lb.
Professional champions
Current champions
These tables were last updated in December 2019.Men:
| Organization | Reign Began | Champion | Record | Defenses |
| UFC | December 14, 2019 |  Alexander Volkanovski | 21–1-0 | 1 |
| Bellator MMA | April 21, 2017 |  Patrício Freire | 30-4 | 3 |
| ONE Championship | August 18, 2016 |  Martin Nguyen | 12-3 | 2 |
| ACA | March 16, 2019 |  Salman Zhamaldaev | 17-1 | 0 |
| Cage Warriors | December 8, 2018 |  Dean Trueman | 10-4 | 0 |
| M-1 Global | Vacant | |||
| Fight Nights Global | Vacant | |||
| Brave Combat Federation | September 21, 2018 |  Bubba Jenkins | 13-4 | 0 |
| Titan FC | April 6, 2018 | Jason Soares | 13-0 | 2 |
| Legacy Fighting Alliance | Vacant | |||
| Road FC | November 3, 2018 |  Jung Young Lee | 8-1 | 0 |
| KSW | April 27, 2019 |  Salahdine Parnasse | 13-0-1 | 0 |
Women:
| Organization | Reign Began | Champion | Record | Defenses |
| UFC | December 29, 2018 | Amanda Nunes | 17-4 | 0 |
| Bellator MMA | January 25, 2020 | Cris Cyborg | 22–2 | 0 |
| Invicta FC | vacant |
Most wins in featherweight title bouts
Men:| Name | Promotion | Title bout wins | |
| 1. |  José Aldo | WEC, UFC | 11 |
| 2. | Urijah Faber | WEC | 6 |
| 3. | Patricio Freire | Bellator | 5 |
| 4. | Pat Curran | Bellator | 4 |
| 4. | Max Holloway | UFC | 4 |
| 5. | Mike Brown | WEC | 3 |
| 6. | Cole Escovedo | WEC | 2 |
| 6. | Daniel Straus | Bellator | 2 |
| 6. |  Conor McGregor | UFC | 2 |
| 7. | Joe Soto | Bellator | 1 |
| 7. | Joe Warren | Bellator | 1 |
Women:
| Name | Promotion | Title bout wins | |
| 1. | Cristiane Justino | Strikeforce, Invicta, UFC | 10 |
| 2. |  Julia Budd | Bellator | 3 |
| 3. | Megan Anderson | Invicta | 1 |
| 3. |  Germaine de Randamie | UFC | 1 |
| 3. | Felicia Spencer | Invicta | 1 |
| 3. | Amanda Nunes | UFC | 1 |
Amanda Nunes