Lennox Claudius Lewis is a former professional boxer who competed from 1989 to 2003. He is a three-time world heavyweight champion, a two-time lineal champion, and remains the last heavyweight to hold the undisputed championship. Holding dual British and Canadian citizenship, Lewis represented Canada as an amateur at the 1988 Summer Olympics, winning a gold medal in the super-heavyweight division after defeating Riddick Bowe in the final.
Larry Holmes is an American former professional boxer who competed from 1973 to 2002. He grew up in Easton, Pennsylvania, which led to his boxing nickname of the Easton Assassin.
William Harrison "Jack" Dempsey, nicknamed Kid Blackie, and The Manassa Mauler, was an American professional boxer who competed from 1914 to 1927, and reigned as the world heavyweight champion from 1919 to 1926. A cultural icon of the 1920s, Dempsey's aggressive fighting style and exceptional punching power made him one of the most popular boxers in history. Many of his fights set financial and attendance records, including the first million-dollar gate. He pioneered the live broadcast of sporting events in general, and boxing matches in particular.
Michael Spinks is an American former professional boxer who competed from 1977 to 1988. He held world championships in two weight classes, including the undisputed light heavyweight title from 1983 to 1985, and the lineal heavyweight title from 1985 to 1988. As an amateur he won a gold medal in the middleweight division at the 1976 Summer Olympics.
Evander Holyfield is an American former professional boxer who competed from 1984 to 2011. He reigned as the undisputed champion at cruiserweight in the late 1980s and at heavyweight in the early 1990s, and remains the only boxer in history to win the undisputed championship in two weight classes in the three 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.
Floyd Patterson was an American professional boxer who competed from 1952 to 1972, and twice reigned as the world heavyweight champion between 1956 and 1962. At the age of 21, he became the youngest boxer in history to win the title, and was also the first heavyweight to regain the title after losing it. As an amateur, he won a gold medal in the middleweight division at the 1952 Summer Olympics.
Leon Spinks was an American professional boxer who competed from 1977 to 1995. In only his eighth professional fight, he won the undisputed heavyweight championship in 1978 after defeating Muhammad Ali in a split decision, in what is considered one of the biggest upsets in boxing history. Spinks was later stripped of the WBC title for facing Ali in an unapproved rematch seven months later, which he lost by a unanimous decision.
Roy Levesta Jones Jr. is an American former professional boxer, boxing commentator, boxing trainer, rapper, and actor who holds dual American and Russian citizenship. He competed in boxing from 1989 to 2018, and held multiple world championships in four weight classes, including titles at middleweight, super middleweight, light heavyweight, and heavyweight, and is the only boxer in history to start his professional career at light middleweight and go on to win a heavyweight title. As an amateur, he represented the United States at the 1988 Summer Olympics, winning a silver medal in the light middleweight division after one of the most controversial decisions in boxing history.
Riddick Lamont Bowe is a retired American professional boxer who competed between 1989 and 2008. He reigned as the undisputed world heavyweight champion in 1992, and as an amateur he won a silver medal in the super heavyweight division at the 1988 Summer Olympics.
James Nathaniel Toney is an American former professional boxer who competed from 1988 to 2017. He held multiple world championships in three weight classes, including the IBF and lineal middleweight titles from 1991 to 1993, the IBF super middleweight title from 1993 to 1994, and the IBF cruiserweight title in 2003. Toney also challenged twice for a world heavyweight title in 2005 and 2006, and was victorious the first time but was later stripped due to a failed drug test. Overall, he competed in fifteen world title fights across four weight classes.
Jens Ingemar "Ingo" Johansson was a Swedish professional boxer who competed from 1952 to 1963. He held the world heavyweight title from 1959 to 1960, and was the fifth heavyweight champion born outside the United States. Johansson won the title by defeating Floyd Patterson via third-round stoppage, after flooring him seven times in that round. For this achievement, Johansson was awarded the Hickok Belt as top professional athlete of the year—the only non-American to do so in the belt's entire 27-year existence—and was named the Associated Press Male Athlete of the Year and Sports Illustrated Sportsman of the Year.
Daniel Peter Williams is a British former professional boxer who competed from 1995 to 2020. He challenged once for the WBC heavyweight title against Vitali Klitschko in 2004. At regional level he held multiple heavyweight titles, including the Commonwealth title twice between 1999 and 2006; the British title twice between 2000 and 2010; and challenged once for the European title in 2003. As an amateur, he won bronze medals at the 1993 European Championships and 1994 Commonwealth Games. Williams is best known for scoring an upset knockout victory against Mike Tyson in 2004.
Harold Johnson was a professional boxer. He held the World Light Heavyweight Championship from 1962 to 1963.
Andre Michael Ward is an American former professional boxer who competed from 2004 to 2017. He retired with an undefeated record and held multiple world titles in two weight classes, including the unified WBA (Super), WBC, Ring magazine, and lineal super middleweight titles between 2009 and 2015; and the unified WBA (Undisputed), IBF, WBO, and Ring light heavyweight titles between 2016 and 2017. During his reign as light heavyweight champion, Ward was ranked as the world's best active boxer, pound for pound, by The Ring magazine and the Transnational Boxing Rankings Board (TBRB), as well as the world's best active boxer in the division by The Ring, the TBRB, and BoxRec. As of January 2021, BoxRec ranks Ward as the tenth greatest fighter of all time, pound for pound. Eight of his victorious fights received a 5-Star rating from BoxRec.
Faumuina To'aletai Mafaufau David Tua, best known as David Tua, is a Samoan-born former New Zealand professional boxer who competed from 1992 to 2013. A highly ranked heavyweight contender for most of his career, Tua was known for his formidable punching power, especially in his devastating left hook. He scored sixteen wins by knockout in the first round, which included knockouts of world heavyweight champions John Ruiz and Michael Moorer within thirty seconds of the first round, as well as late stoppages of world champions Oleg Maskaev and Hasim Rahman. BoxRec currently ranks him as the 16th greatest fighter to have only faced heavyweights during his professional career. He was ranked by BoxRec as the world's top 10 heavyweight from 1996 to 2003, reaching his highest ranking of No.3 in 1998. Tua ended his career with a knockout-to-win ratio of 82.6%. In a 2003 article by The Ring magazine, Tua was ranked 48th on a list of 100 greatest punchers of all time.
Audley Hugh Harrison, is a British former professional boxer who competed from 2001 to 2013. As an amateur he represented Great Britain at the 2000 Olympics, winning a gold medal in the super-heavyweight division and becoming the first ever British boxer to win Olympic gold in that division. Harrison turned professional the following year after signing a contract with BBC Sport, and went on to have seventeen fights on the network before their cancellation of all boxing broadcasts.
Larry Ali Donald is an American former professional boxer. As an amateur he won a bronze medal in the super heavyweight division at the 1991 World Championships and won a gold medal at the 1992 World Championship Challenge and becoming amateur world Super heavyweight champion going into the 1992 Olympic Games represented the United States at the 1992 Olympics. During his professional career, he defeated the likes of Evander Holyfield, Jeremy Williams, Bert Cooper, Tim Witherspoon, and Ross Puritty.
Shane Aaron Cameron is a New Zealand professional boxer. He is a former Commonwealth cruiserweight champion, having also held several regional titles at heavyweight. As an amateur he won a bronze medal in the heavyweight division at the 2002 Commonwealth Games. Outside of boxing, he placed fifth in the 2015 series of Dancing With the Stars New Zealand.
Jeremy Williams is a former professional boxer and mixed martial artist. He challenged once for the WBO Heavyweight title in 1996.
Wayne "Big Truck" Braithwaite is a Guyanese former professional boxer who competed from 1997 to 2012, and held the WBC cruiserweight title from 2002 to 2005.
Harold "Hard Roc" Sconiers 
Charlotte, North Carolina, United States 
Lincoln, Rhode Island, United States 
Bronx, New York, United States 
Hollywood, Florida, United States 
Walker, Minnesota, United States 
Corpus Christi, Texas, United States 
Prague, Czech Republic 
Elieser Castillo 
Jimmy Thunder 
Reno, Nevada, United States 
Memphis, Tennessee, United States 
Onebo Maxime 
Tunica, Mississippi, United States 
Norfolk, Virginia, United States 
Georgetown, Guyana 
Faustino Gonzalez