World Boxing Association champions

Muhammad Ali was an American professional boxer and activist. A global cultural icon, widely known by the nickname "the Greatest", he is often regarded as the greatest heavyweight boxer of all time. He held the Ring magazine heavyweight title from 1964 to 1970, was the undisputed champion from 1974 to 1978, and was the WBA and Ring heavyweight champion from 1978 to 1979. In 1999, he was named Sportsman of the Century by Sports Illustrated and the Sports Personality of the Century by the BBC.

Michael Gerard Tyson is an American former professional boxer who competed from 1985 to 2005, and again in 2024. Nicknamed "Iron Mike" and "Kid Dynamite" in his early career, and later known as "the Baddest Man on the Planet", Tyson is widely regarded as one of the greatest heavyweight boxers of all time, and one of the most intimidating men in boxing history. He reigned as the undisputed world heavyweight champion from 1987 to 1990.

Emmanuel Dapidran Pacquiao Sr. is a Filipino professional boxer and former politician. Nicknamed "PacMan", he is widely regarded as one of the greatest professional boxers of all time, becoming the only eight-division world champion in boxing history. He also served as a senator of the Philippines from 2016 to 2022.

American boxer (1944–2011)

American professional boxer (1949–2025)

Floyd Joy Mayweather Jr. is an American professional boxer and boxing promoter. He is undefeated at 50–0. Mayweather won 15 major world championships spanning five weight classes from super featherweight to light middleweight. This includes the Ring magazine title in three weight classes. As an amateur, he won a bronze medal in the featherweight division at the 1996 Olympics, three U.S. Golden Gloves championships, and the U.S. national championship at featherweight. After retiring from professional boxing in August 2017, he transitioned to exhibition boxing.

American boxer (1914-1981)

Ukrainian boxer (born 1976)

Oleksandr Oleksandrovych Usyk is a Ukrainian professional boxer. He has held the unified heavyweight championship since 2025, and the Ring magazine title since 2022. He held the undisputed championship in two weight classes—cruiserweight and heavyweight—and is the first male boxer to become a three-time undisputed champion in the "four-belt era". With his win over Tyson Fury in 2024, Oleksandr Uysk also became the most recent Lineal Heavyweight Champion.

Anthony Oluwafemi Olaseni "AJ" Joshua is a British professional boxer. He held the unified heavyweight championship twice between 2017 and 2021. He also held the International Boxing Organization (IBO) title during his reigns as champion. At regional level, he held the British and Commonwealth heavyweight titles from 2015 to 2016.

Tyson Luke Fury is a British professional boxer. He held multiple world heavyweight championships, including unified titles from 2015 to 2016, the Ring magazine title twice between 2015 and 2022, and the World Boxing Council (WBC) title from 2020 to 2024. He also held the International Boxing Organization (IBO) title during his first reign as champion.

American boxer

American boxer

American boxing promoter and former professional boxer

German boxer (1905-2005)

British-Canadian boxer Vc

American boxer, rapper and actor

Swedish boxer (1932-2009)

Russian politician and former heavyweight boxer

Ukrainian boxer

American heavyweight boxer (1935-2006)

American boxer (c. 1930–1970)

British boxer

Kazakhstani boxer

Santos Saúl "Canelo" Álvarez Barragán is a Mexican professional boxer. He has held multiple world championships in four weight classes, from light middleweight to light heavyweight, including unified titles in three of those weight classes. In 2021, Álvarez became the first boxer in history to become the undisputed super middleweight champion, before becoming a two-time undisputed super middleweight champion in 2025. He also held the Ring magazine super middleweight title from 2020 to 2025.

Panamanian boxer

Italian boxer

Irish association footballer and boxer

Russian professional boxer

American boxer (1905-1974)

American boxer (1909–1959)

Richard John Hatton, also known by nicknames such as "The Hitman", "The Pride of Hyde" and the "People's Champion", was a British professional boxer who competed between 1997 and 2012, and later worked as a boxing promoter and trainer. During his boxing career he held multiple world championships in the light-welterweight division, and one at welterweight. In 2005 he was named Fighter of the Year by The Ring magazine, the Boxing Writers Association of America, ESPN, and BoxingScene.

British boxer

American boxer (1954–2021)

American boxer (1953–2021)

American boxer

Professional Mexican boxer

Cuban boxer

American boxer

Uzbekistani boxer

German-Armenian boxer

Welsh boxer

American boxer

American boxer and mixed martial artist (born 1981)

American boxer

Welsh boxer and footballer

American boxer (1921–1975)

American boxer

American professional boxer

Russian boxer

Nicaraguan boxer (1952-2009)

Mexican-American boxer

American boxer (born 1967)

Mexican boxer

Puerto Rican boxer

Terence Allan "Bud" Crawford is an American former professional boxer who competed from 2008 to 2025. He retired with an undefeated record and won 18 different major world championships in five weight classes from lightweight to super middleweight, including the undisputed championships at light welterweight, welterweight, and super middleweight. He is the first male boxer in history to become a three-weight undisputed world champion. In the four-belt era, Crawford became the first male boxer to capture the undisputed championship in two and three divisions, and the first to achieve undisputed status at both light welterweight and welterweight.

Argentine boxer (1942-1995)

Norwegian boxer

boxer (1926-1977)

American boxer