Bantamweight is a weight class in combat sports and weightlifting. For boxing, the range is above and up to . In kickboxing, a bantamweight fighter generally weighs between . In MMA, bantamweight is .
The name for the class is derived from bantam chickens. Brazilian jiu-jitsu has an equivalent Rooster weight.
The first gloved world title fight in this division was fought between George Dixon and Nunc Wallace on June 27, 1890, with Dixon winning and thus becoming the inaugural world bantamweight champion. At the time, the limit for this weight class was 110 pounds. In 1910, however, the British settled on a limit of 118.
From 2018 to 2019, an eight-man tournament called the World Boxing Super Series was held to determine the best bantamweight in the world. The tournament was won by Naoya Inoue, who defeated Nonito Donaire in the final.
On December 13, 2022, Naoya Inoue became the first undisputed champion of the division in the four-belt era.
As of September 24, 2025.
Keys:
Below is a list of longest reigning bantamweight champions in boxing measured by the individual's longest reign. Career total time as champion (for multiple time champions) does not apply.
In kickboxing, a bantamweight fighter generally weighs between 53 kg (116 lb) and 55 kg (120 lb). However, some governing bodies have slightly different classes. For example, the International Kickboxing Federation (IKF) Bantamweight division (professional and amateur) is 117.1 lbs.âÂÂ122 lbs. or 53.22 kgâÂÂ55.45 kg.
In ONE Championship, the bantamweight division limit is .
The bantamweight division limit generally differs among bare-knuckle boxing promotions:
In International Lethwei Federation Japan, the bantamweight division is up to . In International Lethwei Federation Japan, Yuta Hamamoto is the Bantamweight Champion.
The World Lethwei Championship recognizes the bantamweight division with an upper limit of . In World Lethwei Championship, Souris Manfredi is the Bantamweight Champion.
In MMA, bantamweight is usually 126âÂÂ135 pounds (57.2âÂÂ61.2 kg). In ONE Championship, the bantamweight division limit is . In Shooto, the limit is 56 kg (123.4 lb).
These tables were last updated in December of 2025.
Men:
Women:
In Muay Thai, bantamweight is 115âÂÂ118 pounds (52.2-53.5 kg). A notable Muai Thai bantamweight fighter is Randy Thong Phoun Phim.
Wrestling also has similar weight classes including bantamweight.