Although women have participated in boxing for almost as long as the sport has existed, female fights have been effectively outlawed for most of boxing's history until recently, with athletic commissioners refusing to sanction or issue licenses to women boxers, and most nations officially banning the sport. Reports of women entering the ring go back to the 18th century.
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.
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.
Hanna Gabriels Valle is a Costa Rican professional boxer. She has held world championships in four weight classes, having held the WBA female light middleweight title since 2016; the WBA female light heavyweight and WBC female heavyweight titles since April 2021; the WBO welterweight title in 2009; and the WBO light middleweight title twice between 2010 and 2018. As of September 2020, she is ranked as the world's third best active light middleweight by The Ring and BoxRec.
Natasha Jonas is a British professional boxer is a two weight world champion who has held the unified WBC, and WBO female light-middleweight titles since 2022. As an amateur, she won a bronze medal in the light-welterweight division at the 2011 European Championships; bronze in the lightweight division at the 2012 AIBA World Championships; and silver in the light-welterweight division at the 2014 European Championships.
Claressa Maria Shields is an American professional boxer and professional mixed martial artist. She has held multiple world championships in five weight classes, including the undisputed female light middleweight title in March 2021; the undisputed female middleweight title twice between 2019 and 2024, the World Boxing Organization (WBO) female light heavyweight title and the World Boxing Council (WBC) and World Boxing Federation (WBF) female heavyweight titles since July 2024; WBC and IBF female super middleweight titles from 2017 to 2018. Shields currently holds the record for becoming a two and three division world champion in the fewest professional fights. As of October 2022, she is ranked the world's best active female middleweight by BoxRec, as well as the best active female boxer, pound for pound, by ESPN and The Ring.
Savannah Rose Marshall is a British professional boxer and professional mixed martial artist. She has held world championships in two weight classes: the undisputed and Ring magazine female super-middleweight title since 2023; and the World Boxing Organization (WBO) female middleweight title from 2020 to 2022. As an amateur, she became the first British female world champion after securing gold at the 2012 World Championships.
Anne Sophie Mathis is a French former professional boxer who competed between 1995 and 2016. She held world titles in two weight division; the WBA female super-lightweight from 2006 to 2008; the WBC female super-lightweight title in 2008; and the WIBF and WIBA welterweight titles in 2011. She also challenged once for the WBO female light-middleweight title in 2014 and the undisputed welterweight title in 2016 against Cecilia Brækhus. She is best known for her knockout win over Holly Holm in 2011 and is considered one of the biggest punchers in the history of women's boxing.
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.
Nikki Adler is a Croatian-German professional boxer. She held the WBC female super-middleweight title from 2013 to 2017.
Marie-Ève Dicaire is a Canadian former professional boxer who is a two-time IBF female super-welterweight World champion having held the title from December 2018 to March 2021 and from December 2021 to November 2022.
Ivana Habazin is a Croatian professional boxer. She was a two-time welterweight world champion, having held the IBF female welterweight title in 2014 and WBC female welterweight title in 2024. She also held the IBO female middleweight title in 2018.
Franchón Crews-Dezurn is an American professional boxer. She is the current World Boxing Council (WBC) Super middleweight world champion and World Boxing Association (WBA) interim world champion after defeating Shadasia Green December 15, 2023. She was the undisputed world champion at super middleweight, losing to Savannah Marshall on 2 July 2023. She held the World Boxing Council (WBC) titles between 2018 and 2023; the World Boxing Organization (WBO) title between 2019 and 2023; and the World Boxing Association (WBA) and International Boxing Federation (IBF) title between 2022 and 2023.
Hannah Rankin is a Scottish professional boxer and bare-knuckle boxer. In boxing she has held the WBA and IBO female super-welterweight World titles.
Ema Kozin is a Slovenian professional boxer who currently holds the WBC and WBO female super-welterweight titles having previously been the WBC interim female middleweight champion.
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 former 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.
Femke Hermans is a Belgian professional boxer who is the current IBF and IBO female super-welterweight World champion. She also held the WBO female super-middleweight title in 2018, becoming the second Belgian woman to hold a major world championship.
Maria Camilla Lindberg is a Swedish professional boxer who has held the WIBF light-middleweight title since 2009. She previously held the WIBA light-middleweight title from 2010 to 2014 and has challenged for multiple world titles, including the WBO female middleweight title in 2011 and April 2021; the unified WBC and WBO female middleweight titles in 2017; and the WBC and IBF female light-middleweight titles in 2018 and 2019, respectively.
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Jean Pierre Sports Complex, Port of Spain, Trinidad and Tobago