In professional boxing, the undisputed champion of a weight class is the boxer who simultaneously holds world titles from all sanctioning organisations recognized major by each other and the International Boxing Hall of Fame. There are currently four major sanctioning bodies: WBA, WBC, IBF and WBO. There were many undisputed champions before the number of major sanctioning bodies recognizing each other increased to four in 2007, but there have only been 18 boxers to hold all four titles simultaneously.
Dingaan Bongane Thobela, is a South African former professional boxer who competed between 1990 and 2006. He is a world champion in two weight classes, having held the WBO lightweight title from 1990 to 1992, the WBA lightweight in 1993, and the WBC super-middleweight title in 2000.
Roberto Garcia Cortez is a Mexican-American former professional boxer who competed from 1992 to 2001, and held the IBF junior lightweight title from 1998 to 1999. He has since worked as a boxing trainer, and was voted Trainer of the Year by The Ring magazine in 2011, and by the Boxing Writers Association of America in 2012. He is the older brother of professional boxer Mikey Garcia, who was a world champion in four weight classes.
Holly Holm is an American mixed martial artist, who competes in the Ultimate Fighting Championship. She is a former UFC Women's Bantamweight Champion, and a former professional boxer. She was a multiple-time world champion in boxing, defending her titles 18 times in three weight classes, and a two-time Ring magazine fighter of the year. She is ranked by BoxRec as the 20th greatest female professional boxer of all time, pound for pound.
Cecilia Carmen Linda Brækhus is a 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, female or male, to hold all four major world titles simultaneously.
Myriam Lamare is a French female boxer who won world titles in the World Boxing Association (WBA), World Boxing Federation (WBF), and International Boxing Federation (IBF).
Érica Anabella Farías, known as "La Pantera", is an Argentine professional boxer. She is a two-weight world champion, having held the WBC female lightweight title from 2011 to 2014 and the WBC female super lightweight title from 2014 to 2018. She also challenged once for the undisputed welterweight championship in 2017. As an amateur, she won a silver medal at the 2006 World Championships. As of October 2020, she is ranked as the world's second best active female super lightweight by BoxRec and fourth by The Ring.
Alejandra Marina Oliveras, known as "La Locomotora", is an Argentine boxer. She is the former WBC female super lightweight, WBO World female featherweight and WBA World female lightweight champion.
Kali Reis is an American professional boxer and actress. She is a former world champion in two weight classes, having held the WBC female middleweight title in 2016 and the WBA, WBO, and IBO female light welterweight titles between 2020 and 2022. She also challenged Cecilia Brækhus for the undisputed female welterweight title in 2018.
Christina Hammer is a German boxer. As a professional, she has held multiple world championships in two weight classes, including the WBO female middleweight title from 2010 to 2019, becoming the youngest boxer to win a WBO world title; the WBC female middleweight title between 2016 and 2018; and the WBO female super-middleweight title in 2013. She also challenged once for the WBO female light-middleweight title in 2014 and once for the undisputed female middleweight championship against Claressa Shields in 2019.
Jessica Balogun is a German professional boxer. She was a standout amateur and is now a world champion professional boxer.
Amy Yuratovac is an American former professional boxer who competed from 2005 to 2009 and challenged for the WBA and WBC female welterweight titles in 2009.
Jessica McCaskill is an American professional boxer. She is a world champion in two weight classes, having held the undisputed, IBO, and Ring female welterweight titles since 2020; the WBC female super lightweight title from 2018 to 2020; and the WBA female super lightweight title from 2019 to 2020. She also challenged for the WBA lightweight title in 2017. As of September 2020, she is ranked as the world's best active female welterweight by The Ring and BoxRec, and the third best active female, pound for pound, by BoxRec, and fourth by The Ring and ESPN.
Maïva Hamadouche is a French professional boxer and police officer who held the IBF female super-featherweight title from 2016 to November 2021. At regional level, she held the French female lightweight title in 2014 and the European female lightweight title in 2015. As of September 2020, she is ranked as the world's best active female junior-lightweight by The Ring and second BoxRec.
Chantelle Cameron is an English professional boxer. She is a former world champion in two weight classes including the former undisputed light-welterweight champion, having held the WBC title between 2020 and 2023; the IBF and Ring magazine titles between 2021 and 2023 ; and the WBA and WBO titles between November 2022 and 2023. She previously held the IBO female lightweight title from 2017 to 2019.
Terence Crawford vs. Julius Indongo was a professional boxing match contested for the undisputed light welterweight championship between undefeated WBC, WBO, and The Ring champion Terence Crawford, and undefeated WBA (Unified), and IBF champion Julius Indongo. The bout took place on August 19, 2017, at the Pinnacle Bank Arena in Lincoln, Nebraska. Crawford defeated Indongo via third-round KO.
Christian Adriana Namús Corrales is a Uruguayan professional boxer who held the IBF female junior middleweight title from 2017 to 2018. She also challenged for the WBC interim female light welterweight title in 2009; the WBO female light-welterweight title twice in 2011 and 2012; and the undisputed female welterweight title in 2016. As of September 2020, she is ranked as the world's fifth best active female junior middleweight by The Ring and BoxRec.
Cindy Serrano is a Puerto Rican professional boxer who held the WBO female featherweight title from 2016 to 2017. She also challenged for the WIBA featherweight title in 2005; the WIBA and WIBF welterweight titles in 2011; and the unified WBA and IBF female lightweight titles in 2018. Her younger sister, Amanda, is also a professional boxer. The pair became the first sisters to hold world titles from major sanctioning bodies at the same time after Cindy captured the WBO title in 2016.
Ornella Domini is a Swiss professional boxer. She is a two-time European female welterweight champion, having held the title since 2019 and previously from 2013 to 2015. She also challenged for the WBC female super-welterweight title in 2018. As of September 2020, Domini is ranked as the world's fifth best active female welterweight by The Ring and ninth by BoxRec.
