Evander Holyfield is an American former professional boxer who competed between 1984 and 2011. He reigned as the undisputed champion at cruiserweight in the late 1980s and at heavyweight in the early 1990s, and was the only boxer in history to win the undisputed championship in two weight classes in the "three belt era", a feat later surpassed by Terence Crawford, Naoya Inoue and Oleksandr Usyk, who became two-weight undisputed champions in the four-belt era. Nicknamed "the Real Deal", Holyfield is the only four-time world heavyweight champion, having held the unified WBA, WBC, and IBF titles from 1990 to 1992, the WBA and IBF titles again from 1993 to 1994, the WBA title a third time from 1996 to 1999; the IBF title a third time from 1997 to 1999 and the WBA title for a fourth time from 2000 to 2001.
Virgil Eugene Hill is an American former professional boxer who competed from 1984 to 2007, and in 2015. He is a two-weight world champion, having held the WBA light heavyweight title twice, from 1987 to 1997; the IBF and lineal light heavyweight titles from 1996 to 1997; and the WBA cruiserweight title twice, from 2000 to 2002 and 2006 to 2007. As an amateur, Hill won a silver medal in the middleweight division at the 1984 Summer Olympics. In 2013, he was inducted into the International Boxing Hall of Fame.
Antonio Deon Tarver is an American former professional boxer and boxing commentator. In boxing he competed from 1997 to 2015, and held multiple light heavyweight world championships, including the WBA (Unified), WBC, IBF and Ring magazine titles, as well as the IBO light heavyweight and cruiserweight titles.
Jean-Marc Gilbert Mormeck is a French former professional boxer who competed from 1995 to 2014. He is a two-time unified world cruiserweight champion, having held the WBA, WBC and The Ring world titles twice between 2005 and 2007. He was the first boxer to hold unified cruiserweight title since Evander Holyfield in 1988, and the first fighter to hold The Ring cruiserweight title since Carlos De León in 1987. He was ranked by BoxRec as the world's top 10 cruiserweight from 2001 to 2005 and in 2007, and was ranked No.1 in 2003 and 2004. Mormeck also challenged for the unified world heavyweight title in 2012.
O'Neil Bell was a Jamaican professional boxer who competed from 1998 to 2011. He held the undisputed cruiserweight title in 2006 and the lineal cruiserweight title from 2006 to 2007.
Anthony William Mundine OAM is an Australian former boxer, and one of the country's most accomplished Indigenous fighters. The only Australian boxer to compete professionally in four weight divisions, he held the Australian middleweight, light heavyweight, cruiserweight and heavyweight titles, as well as the Commonwealth middleweight and light heavyweight titles. He also challenged once for the WBA world middleweight title in 1974.
Mikkel Kessler is a Danish former professional boxer who competed from 1998 to 2013. He held multiple super-middleweight world championships, including the WBA title three times between 2004 and 2013, and the WBC title twice between 2006 and 2010.
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 19 boxers to hold all four titles simultaneously.
Chad Dawson is an American former professional boxer who competed from 2001 to 2019. He held multiple world championships in the light heavyweight division, and was one of that division's most highly regarded boxers between 2006 and 2013.
Iran Barkley is an American former professional boxer who competed from 1982 to 1999. He held world championships in three weight classes, including the WBC middleweight title from 1988 to 1989, the IBF super middleweight title from 1992 to 1993, and the WBA light heavyweight title in 1992. As an amateur boxer, Barkley won a bronze medal in the middleweight division at the 1982 World Championships.
Manuel Alejandro Siaca is a Puerto Rican boxer at super middleweight.
Mehdi Sahnoune is a French former professional boxer.
Stipe Drews is a retired Croatian professional boxer. He won the WBA's version of the world light heavyweight championship title on 27 April 2007.
Jean-Thenistor Pascal is a Haitian-born Canadian professional boxer. He held the WBA (Regular) light-heavyweight title from 2019 to 2021, and previously the WBC, IBO, Ring magazine and lineal light-heavyweight titles between 2009 and 2011, and challenged once for the WBC super-middleweight title in 2008.
Badou Jack is a Swedish professional boxer. He has held world titles in three weight classes, including the WBC super-middleweight title from 2015 to 2017, the WBA light-heavyweight title in 2017, and the WBC cruiserweight title in 2023. As an amateur, he represented Gambia at the 2008 Olympics, reaching the first round of the middleweight bracket.
Jürgen Brähmer is a German professional boxer. He is a two-time former light-heavyweight world champion, having held the WBO title from 2009 to 2011, and the WBA (Regular) title from 2013 to 2016. Additionally, he has held the European light-heavyweight title twice, in 2009 and 2013.
Nathan Cleverly is a retired Welsh former professional boxing world champion who competed from 2005 to 2017. He is a two-time light-heavyweight world champion, having held the WBO title from 2011 to 2013, and the WBA (Regular) title from 2016 to 2017. Additionally he held multiple regional light-heavyweight championships, including the European, British, and Commonwealth titles between 2008 and 2010.
Bernard Hopkins Jr. is an American former professional boxer who competed from 1988 to 2016. He is one of the most successful boxers of the past three decades, having held multiple world championships in two weight classes, including the undisputed middleweight title from 2001 to 2005, and the lineal light heavyweight title from 2011 to 2012.
Boxing in the 2010s includes notable events about boxing which occurred between 2010 and 2019. The decade saw high intensity action in the welterweight division. The match between veterans Floyd Mayweather Jr. and Manny Pacquiao broke PPV records. The broadcast of the fight in the Philippines was watched by nearly half the country's households. Mayweather retired at a record 50-0-0 while Pacquiao became the first eight division champion. The middleweight division saw immense action in the later years of the decade. After a draw in 2017, Canelo Alvarez ended Gennady Golovkin's long reign in 2018. The heavyweight division was dominated by Klitschko brothers before Wladimir's loss to Tyson Fury in 2015. Other talents that emerged were Anthony Joshua, Deontay Wilder and undisputed cruiserweight champion Oleksander Usyk.
Dmitry Yuryevich Bivol is a Russian professional boxer who has held the World Boxing Association (WBA) light heavyweight title since 2017 and the International Boxing Organization (IBO) title since 2023. As an amateur, he won a gold medal at the 2013 World Combat Games in the 81 kg weight category. As of June 2024, Bivol is ranked as the world's third best active boxer, pound for pound, by BoxRec, fourth by the Transnational Boxing Rankings Board (TBRB), sixth by The Ring, seventh by the Boxing Writers Association of America and fourth by ESPN. He is also ranked as the second-ranked best light heavyweight by The Ring, ESPN, TBRB and BoxRec.
Juho Haapoja 
Stadio Comunale Fattori, Civitavecchia, Italy 
Jevgenijs Andrejevs
Laszlo Hubert
Jean Pascal 
Abdelkader Benzinia
Bucharest, Romania 
Peter Venancio
Berlin, Germany 
Stipe Drews 
Manny Siaca 
Radek Seman
Drago Janjusevic
Sasha Mitreski
Ramdane Serdjane
Raul Esteban Barreto
Anton Lascek
Robin Reid 
Glen Johnson 
Patrick Swann
Anthony Andrews
Alexander Zaitsev
Tomas Negro Garcia
Erich Ecker
Samuel Isiko
Eric Taton
Abdel Bejaoui
Libema Nzua
Judas Clottey
Xhafer Vishaj