World 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 Organization) 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, with no division currently ruled by a single fighter. 

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
• WBC: Tyson Fury
• IBF: Oleksandr Usyk
• WBO: Oleksandr Usyk
• The Ring: Oleksandr Usyk

Bridgerweight

• WBC: Oscar Rivas

Cruiserweight

• WBA: Arsen Goulamirian
• WBC: Ilunga Makabu
• IBF: Jai Opetaia
• WBO: Lawrence Okolie
• The Ring: Jai Opetaia

Light heavyweight

• WBA: Dimitry Bivol
• WBC: Artur Beterbiev
• IBF: Artur Beterbiev
• WBO: Artur Beterbiev
• The Ring: Vacant

Super middleweight

• WBA: Canelo Alvarez
• WBC: Canelo Alvarez
• IBF: Canelo Alvarez
• WBO: Canelo Alvarez
• The Ring: Canelo Alvarez

Middleweight

• WBA: Gennady Golovkin
• WBC: Jermall Charlo
• IBF: Gennady Golovkin
• WBO: Janibek Alimkhanuly
• The Ring: Vacant

Super welterweight/Junior middleweight

• WBA: Jermell Charlo
• WBC: Jermell Charlo
• IBF: Jermell Charlo
• WBO: Jermell Charlo
• The Ring: Jermell Charlo

Welterweight

• WBA: Errol Spence Jr.
• WBC: Errol Spence Jr.
• IBF: Errol Spence Jr.
• WBO: Terence Crawford
• The Ring: Vacant

Super lightweight/Junior welterweight

• WBA: Alberto Puello
• WBC: Regis Prograis
• IBF: Vacant 
• WBO: Josh Taylor
• The Ring: Josh Taylor

Lightweight

• WBA: Devin Haney
• WBC: Devin Haney
• IBF: Devin Haney
• WBO: Devin Haney
• The Ring: Devin Haney

Super featherweight/Junior lightweight

• WBA: Hector Luis Garcia
• WBC: Vacant
• IBF: Shavkatdzhon Rakhimov
• WBO: Vacant
• The Ring: Vacant

Featherweight

• WBA: Leigh Wood
• WBC: Rey Vargas
• IBF: Luis Alberto Lopez
• WBO: Emanuel Navarrete
• The Ring: Vacant

Super bantamweight/Junior featherweight

• WBA: Murodjon Akhmadaliev
• WBC: Stephen Fulton Jr.
• IBF: Murodjon Akhmadaliev
• WBO: Stephen Fulton Jr.
• The Ring: Vacant

Bantamweight

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

Super flyweight/Junior bantamweight

• WBA: Joshua Franco
• WBC: Juan Francisco Estrada
• IBF: Fernando Martinez
• WBO: Kazuto Ioka
• The Ring: Juan Francisco Estrada

Flyweight

• WBA: Artem Dalakian
• WBC: Julio Cesar Martinez
• IBF: Sunny Edwards
• WBO: Vacant
• The Ring: Vacant

Light/Junior flyweight

• WBA: Kenshiro Teraji
• WBC: Kenshiro Teraji
• IBF: Sivenathi Nontshinga
• WBO: Jonathan Gonzalez
• The Ring: Kenshiro Teraji

Minimumweight/Mini flyweight

• WBA: Thammanoon Niyomtrong
• WBC: Panya Pradabsri
• IBF: Daniel Valladares
• WBO: Masataka Taniguchi
• The Ring: Vacant