Middleweight
Middleweight is a weight class in combat sports.
Boxing
Professional
In professional boxing, the middleweight division is contested above and up to.Early boxing history is less than exact, but the middleweight designation seems to have begun in the 1840s. In the bare-knuckle era, the first middleweight championship fight was between Tom Chandler and Dooney Harris in 1867. Chandler won, becoming known as the American middleweight champion. The first middleweight fight with gloves may have been between George Fulljames and Jack Dempsey.
Current world champions
| Sanctioning Body | Reign Began | Champion | Record | Defenses | Beaten opponents |
| WBA | September 15, 2018 |  Canelo Álvarez | 53–1–2 | 2 | 2 |
| WBC | April 21, 2018 |  Jermall Charlo | 30–0–0 | 2 | 2 |
| IBF | October 5, 2019 |  Gennady Golovkin | 40–1–1 | 0 | 0 |
| WBO | October 20, 2018 | Demetrius Andrade | 29–0–0 | 3 | 3 |
Current interim champions
| Sanctioning Body | Reign Began | Champion | Record | Defenses | Beaten opponents |
| WBA | December 7, 2019 |  Chris Eubank Jr. | 29–2–0 | 0 | 0 |
Current ''The Ring'' world rankings
As of ,.Keys:
| Rank | Name | Record | Title |
| C | Canelo Alvarez | 53–1–2 | WBA |
| 1 | Gennady Golovkin | 40–1–1 | IBF |
| 2 | Demetrius Andrade | 29–0 | WBO |
| 3 | Jermall Charlo | 30–0 | WBC |
| 4 |  Serhiy Derevyanchenko | 13–2 | |
| 5 |  Ryōta Murata | 16–2 | |
| 6 |  Kamil Szeremeta | 19–0 | |
| 7 |  Chris Eubank Jr. | 29–2 | |
| 8 | Maciej Sulęcki | 28–2 | |
| 9 | Rob Brant | 25–2 | |
| 10 | Liam Williams | 22–2–1 |
Longest reigning world middleweight champions
Below is a list of longest reigning middleweight champions in boxing measured by the individual's longest reign. Career total time as champion does not apply.| Rank | Name | Title Reign | Title Recognition | Successful Defenses | Beaten opponents | Fights |
| 1. | Bernard Hopkins | 10 years, 2 months, 18 days | IBF, WBA, WBC, WBO | 20 | 17 | |
| 2. | Tommy Ryan | 8 years, 7 months, 4 days | World | 6 | 6 | |
| 3. | Gennady Golovkin | 7 years, 11 months, 1 day | WBA, IBF, WBC | 20 | 19 | |
| 4. |  Tony Zale | 6 years, 11 months, 24 days | NBA | 4 | 4 | |
| 5. |  Carlos Monzon | 6 years, 9 months, 9 days | WBA, WBC | 14 | 11 | |
| 6. | Marvelous Marvin Hagler | 6 years, 7 months, 10 days | WBC, WBA, IBF | 12 | 10 | |
| 7. |  Jack Dempsey | 6 years, 6 months, 15 days | World | 2 | 2 | |
| 8. |  Felix Sturm | 5 years, 4 months, 4 days | WBA | 12 | 11 | |
| 9. |  Bob Fitzsimmons | 3 years, 8 months, 12 days | World | 1 | 1 | |
| 10. |  Arthur Abraham | 3 years, 7 months, 2 days | IBF | 10 | 10 |
Amateur
Olympic champions
- 1904:
- 1908:
- 1920:
- 1924:
- 1928:
- 1932:
- 1936:
- 1948:
- 1952:
- 1956:
- 1960:
- 1964:
- 1968:
- 1972:
- 1976:
- 1980:
- 1984:
- 1988:
- 1992:
- 1996:
- 2000:
- 2004:
- 2008:
- 2012:
- 2016:
Kickboxing
- International Kickboxing Federation Middleweight 159.1–165 lb. or 72.4–75 kg
- In Glory promotion, a middleweight division is up to 85 kg.
- In Bellator Kickboxing promotion, a middleweight division is up to 85 kg.
Mixed Martial Arts