World men's boxing champions list: WBA, WBO, WBC, IBF and The Ring title holders in every weight class

There are 17 weight classes in professional boxing, and five major recognised belts for each of the divisions: The WBA (World Boxing Association), WBC (World Boxing Council), IBF (International Boxing Federation), WBO (World Boxing Organisation) and The Ring.

There are four recognised major bodies in boxing, the WBA, WBC, IBF and the WBO. The Ring title is awarded by American boxing magazine, The Ring, and has been done since 1922.

The mixture of belts and champions means that there is only a rare occasion when a class can be fully unified to produce an undisputed champion.

Boxers often fight across weight classes in order to maximise their chances of success, and Manny Pacquiao is currently the only fighter to have won titles in eight divisions.

Here is every champion in each of boxing's weight class.

Heavyweight

• WBA: Oleksandr Usyk (Super) / Murat Gassiev (Regular)
• WBC: Oleksandr Usyk / Agit Kabayel (Interim)
• IBF: Oleksandr Usyk
• WBO: Fabio Wardley
• The Ring: Oleksandr Usyk

Bridgerweight

• WBA: Muslim Gadzhimagomedov / Georgiy Yunovidov (Interim)
• WBC: Kevin Lerena / Krzysztof Wlodarczyk (Interim)

Cruiserweight

• WBA: Gilberto Ramirez (Super)
• WBC: Badou Jack / Michał Cieślak (Interim)
• IBF: Jai Opetaia
• WBO: Gilberto Ramirez
• The Ring: Jai Opetaia

Light heavyweight

• WBA: Dmitry Bivol (Super) / David Benavidez (Regular) / Albert Ramirez (Interim)
• WBC: David Benavidez
• IBF: Dmitry Bivol
• WBO: Dmitry Bivol / Callum Smith (Interim)
• The Ring: Dmitry Bivol

Super middleweight

• WBA: Armando Resendiz
• WBC: Christian M'Billi
• IBF: Vacant
• WBO: Vacant
• The Ring: Vacant

Middleweight

• WBA: Erislandry Lara
• WBC: Carlos Adames / Jesus Ramos (Interim)
• IBF: Janibek Alimkhanuly
• WBO: Janibek Alimkhanuly
• The Ring: Vacant

Super welterweight/Junior middleweight

• WBA: Xander Zayas / Jaron Ennis (Interim)
• WBC: Sebastian Fundora / Vergil Ortiz Jr. (Interim)
• IBF: Josh Kelly
• WBO: Xander Zayas
• The Ring: Vacant

Welterweight

• WBA: Rolando Romero
• WBC: Mario Barrios
• IBF: Lewis Crocker
• WBO: Devin Haney
• The Ring: Vacant

Super lightweight/Junior welterweight

• WBA: Gary Antuanne Russell
• WBC: Dalton Smith / Isaac Cruz (interim)
• IBF: Richardson Hitchins
• WBO: Shakur Stevenson
• The Ring: Shakur Stevenson

Lightweight

• WBA: Vacant
• WBC: Vacant / Jadier Herrera (Interim)
• IBF: Raymond Muratalla
• WBO: Abdullah Mason
• The Ring: Vacant

Super featherweight/Junior lightweight

• WBA: Jazza Dickens
• WBC: O'Shaquie Foster
• IBF: Eduardo Nunez
• WBO: Emanuel Navarrete
• The Ring: Vacant

Featherweight

• WBA: Brandon Figueroa / Mirco Cuello (interim)
• WBC: Bruce Carrington
• IBF: Angelo Leo
• WBO: Rafael Espinoza
• The Ring: Vacant

Super bantamweight/Junior featherweight

• WBA: Naoya Inoue
• WBC: Naoya Inoue
• IBF: Naoya Inoue
• WBO: Naoya Inoue
• The Ring: Naoya Inoue

Bantamweight

• WBA: Seiya Tsutsumi
• WBC: Takuma Inoue
• IBF: Jose Salas
• WBO: Christian Medina
• The Ring: Vacant

Super flyweight/Junior bantamweight

• WBA: Jesse Rodriguez / David Jimenez (Interim)
• WBC: Jesse Rodriguez
• IBF: Willibaldo Garcia Perez
• WBO: Jesse Rodriguez
• The Ring: Jesse Rodriguez

Flyweight

• WBA: Ricardo Sandoval / Jonathan González (Interim)
• WBC: Ricardo Sandoval / Galal Yafai (Interim)
• IBF: Masamichi Yabuki
• WBO: Anthony Olascuaga
• The Ring: Vacant

Light/Junior flyweight

• WBA: Rene Santiago
• WBC: Knockout CP Freshmart
• IBF: Thanongsak Simsri
• WBO: René Santiago
• The Ring: Vacant

Minimumweight/Mini flyweight

• WBA: Oscar Collazo (Super) / Ryūsei Matsumoto (Regular)
• WBC: Melvin Jerusalem
• IBF: Pedro Taduran
• WBO: Oscar Collazo 
• The Ring: Oscar Collazo

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