The World Boxing Council (WBC) is an international professional boxing organization. It is among the four major organizations which sanction professional boxing bouts, alongside the World Boxing Association (WBA), International Boxing Federation (IBF) and World Boxing Organization (WBO).
The World Boxing Association (WBA), formerly known as the National Boxing Association (NBA), is the oldest and one of four major organizations which sanction professional boxing bouts, alongside the World Boxing Council (WBC), International Boxing Federation (IBF) and World Boxing Organization (WBO). The WBA awards its world championship title at the professional level. Founded in the United States in 1921 by 13 state representatives as the NBA, in 1962 it changed its name in recognition of boxing's growing popularity worldwide and began to gain other nations as members.
The World Boxing Organization (WBO) is an organization which sanctions professional boxing bouts. It is recognized by the International Boxing Hall of Fame (IBHOF) as one of the four major world championship groups, alongside the World Boxing Association (WBA), World Boxing Council (WBC), and International Boxing Federation (IBF). The WBO's headquarters are located in San Juan, Puerto Rico.
The International Boxing Federation (IBF) is one of four major organizations recognized by the International Boxing Hall of Fame (IBHOF) which sanctions professional boxing bouts. The others are the World Boxing Association (WBA), World Boxing Council (WBC) and World Boxing Organization (WBO).
In boxing, the undisputed champion of a weight class is the boxer who simultaneously holds world titles from all major organizations recognized by each other and the International Boxing Hall of Fame. There are currently four major sanctioning bodies: WBA, WBC, WBO, and IBF. There were many undisputed champions before the number of major sanctioning bodies recognizing each other increased to four in 2007, but there have been only 21 boxers to hold all four titles simultaneously.
SusiannaLevonovna Kentikian is an Armenian-German former professional boxer who competed from 2005 to 2016. She was born in Yerevan, Armenian SSR, but left the country with her family at the age of five because of the First Nagorno-Karabakh War. Kentikian has lived in Hamburg since 1996 and began boxing at the age of 12.
A quadruple champion, also known as a grand slam champion, occurs in different sports when a competitor wins four crowns, titles, medals, belts or another distinction. The definition varies depending on the sport.
Cecilia Carmen Linda Brækhus is a Colombian-born Norwegian professional boxer and former kickboxer. She reigned as the undisputed female welterweight boxing champion from 2014 to 2020, and is the first woman in any weight class to hold the WBA, WBC, IBF and WBO titles simultaneously. Brækhus is also one of only 11 boxers in history, male or female, to hold all four major world titles simultaneously. She also held the IBO title from 2016 to 2020, and is currently the interim WBC super welterweight champion.
In boxing, a septuple champion is a boxer who has won world titles in seven different weight classes.
Natalia Yurievna Ragozina, better known as Natascha Ragosina, is an undefeated retired Russian professional boxer who spent much of her career ranked as the top female super middleweight in the world.
Takashi Uchiyama is a Japanese former professional boxer who competed from 2005 to 2016, having held the WBA (Super) super-featherweight title from 2010 to 2016.
Choi Hyun-mi is a South Korean female professional boxer. She is a two-weight world champion, having held the WBA female super-featherweight title from 2013 to 2023 and previously the WBA female featherweight title from 2008 to 2013.
Jessica McCaskill is an American former professional boxer. She is a former world champion in two weight classes, having held the undisputed, IBO and Ring female welterweight titles; the WBC female super-lightweight title and the WBA female super-lightweight title. She also challenged for the WBA lightweight title.
Naoko Fujioka is a Japanese former professional boxer. She is Japan's first ever five-division world champion, having held the WBA female flyweight title between 2017 to 2022. She also previously held the WBC female minimumweight; WBO female junior-flyweight; WBA female super-flyweight; and WBO female bantamweight titles between 2012 and 2017.
Teeraporn Pannimit is a Thai professional boxer who is a former two-time WBO female mini flyweight champion.
Mari Ando
Maria Milano – Interim champion promoted
Monserrat Alarcón 
Tina Rupprecht 
