Shane Andre Mosley, often known by his nickname "Sugar" Shane Mosley, is an American former professional boxer who competed from 1993 to 2016. He held multiple world championships in three weight classes, including the IBF lightweight title; the WBA (Super) and WBC welterweight titles; and the WBA (Super), WBC, and The Ring magazine light middleweight titles. He is also a former lineal champion at welterweight (twice) and light middleweight.
Donald Curry, is an American former professional boxer who competed from 1980 to 1991, and in 1997. He held the undisputed welterweight title from 1985 to 1986, the WBC light middleweight title from 1988 to 1989, and challenged once for the IBF and lineal middleweight titles in 1990. In 2019, he was inducted into the International Boxing Hall of Fame.
Jermain Taylor is an American former professional boxer who competed from 2001 to 2014. He remains the most recent undisputed middleweight champion, having won the WBA (Undisputed), WBC, IBF, WBO, Ring magazine, and lineal titles in 2005 by beating Bernard Hopkins, and in doing so ending Hopkins' twelve-year reign as middleweight champion. This made Taylor the first, and to date, only male boxer in history to claim each title from all four major boxing sanctioning organizations in a single fight. He once again defeated Hopkins six months later, making him the only fighter to have defeated Hopkins twice. He retired as a world champion in the months that followed his capture of the IBF middleweight title for a second time, after making a substantial recovery from a brain injury sustained earlier in his career.
Mike McCallum is a Jamaican former professional boxer who competed from 1981 to 1997. He held world championships in three weight classes, including the WBA super welterweight title from 1984 to 1988, the WBA middleweight title from 1989 to 1991, and the WBC light heavyweight title from 1994 to 1995.
Gennadiy Gennadyevich Golovkin, often known by his nickname "GGG" or "Triple G", is a Kazakhstani professional boxer. He has held multiple middleweight world championships, and is a two-time unified champion, having held the IBF title since 2019 and the WBA (Super) title since April 2022. Previously he held the unified WBA (Super), WBC and IBF titles between 2014 and 2018. He is also a two-time IBO middleweight champion, in his second reign since 2019.
Isufu "Ike" Quartey is a Ghanaian former professional boxer who competed from 1988 to 2006. He held the WBA welterweight title from 1994 to 1998, and challenged once for IBF junior-middleweight title in 2000.
Roman Alexandrovich Karmazin is a Russian former professional boxer. He held the IBF Light Middleweight title.
Kassim Ouma is a Ugandan professional boxer. He held the IBF junior middleweight title from 2004 to 2005, and has challenged twice for a world middleweight title in 2006 and 2011.
Cornelius Bundrage is an American professional boxer. He is a two-time former world champion, having held the IBF junior middleweight title twice between 2010 and 2015. In 2006 he was a contestant on season two of the Contender reality TV show, where he reached the semi-finals.
Avetik Abrahamyan, best known as Arthur Abraham, is an Armenian-German former professional boxer who competed from 2003 to 2018. He held multiple world championships in two weight classes, including the IBF middleweight title from 2005 to 2009, and the WBO super-middleweight title twice between 2012 and 2016.
Joshua Clottey is a Ghanaian former professional boxer who competed from 1995 to 2019, and held the IBF welterweight title from 2008 to 2009. As an amateur, he competed at the 1994 Commonwealth Games. At the peak of his career, he was notable for his exceptionally durable chin, and was never stopped in any of his five losses.
Daniel Santos Peña is a Puerto Rican former professional boxer who competed from 1996 to 2009. As an amateur Santos represented Puerto Rico in international events, including the 1990 and 1992 Junior World Championships, Pan American Boxing Tournament, Goodwill Games, 1995 Pan American Games and the 1996 Summer Olympics, where he won a bronze medal in the Welterweight Division. Santos debuted as a professional in 1996. Santos won the World Boxing Organization Welterweight championship on May 6, 2000. On March 16, 2002 he vacated the welterweight division's championship in order to compete against Yori Boy Campas for the vacant World Boxing Organization Light middleweight championship. Santos defended this championship on four occasions, against Mehrdud Takaloo, Fulgencio Zúñiga, Michael Lerma and Antonio Margarito before losing it to Sergiy Dzindziruk by unanimous decision in a fight that took place on December 3, 2005. On July 11, 2008, Santos won his third professional championship, knocking out Joachim Alcine in six rounds to win the World Boxing Association's light middleweight title.
Randall Bailey is an American professional boxer. A veteran of the sport for over twenty years, he is a former world champion in two weight classes, having held the WBO light welterweight title from 1999 to 2000, and the IBF welterweight title in 2012. Additionally, he held the WBA interim light welterweight title in 2002. Nicknamed "The Knock-Out King" for his exceptional knockout power, Bailey is considered to be one of the hardest punchers in boxing history.
Hassan N'Dam N'Jikam is a French Cameroonian professional boxer. He has held a middleweight world championship twice, including the WBO title in 2012 and the WBA (Regular) title in 2017, and has challenged once for a super-middleweight world title in 2019.
Daniel Jacobs is an American professional boxer. He is a two-time middleweight world champion, having held the IBF title from 2018 to 2019 and the WBA (Regular) title from 2014 to 2017. Nicknamed the "Miracle Man," Jacobs' career was almost cut short in 2011 due to osteosarcoma, a rare form of bone cancer. He went on to make a full recovery after spending 19 months out of the sport, meanwhile recovering from severe operation-induced injuries generally perceived as crippling.
José Ángel Hernández is a Mexican professional boxer. He has held the NABA, NABF and International Boxing Association Americas light middleweight titles.
Dmitry Yurievich Pirog is a Russian politician and former professional boxer. In boxing he competed from 2005 to 2012, and held the WBO middleweight title from 2010 to 2012. Although his career was cut short due to a debilitating back injury, he is one of the few professional boxers to win a world championship and retire undefeated.
Delvin Antonio Rodríguez is a Dominican professional boxer who has challenged three times for a world title.
Jermell DeAvante Charlo is an American professional boxer. He is currently the undisputed light middleweight world champion, having held the WBC title since 2019, the WBA (Super), IBF and Ring magazine titles since September 2020, and the WBO title since May 2022. His identical twin brother, Jermall Charlo, is also a professional boxer and undefeated world champion. As of May 2022, he is ranked as the world's tenth best active boxer, pound for pound, by The Ring and the TBRB. He is also ranked as the world's best active light middleweight by the TBRB, BoxRec, The Ring and ESPN.
Oscar De La Hoya vs. Bernard Hopkins, billed as It's History, was a professional boxing match contested on September 18, 2004 for Hopkins' WBA (Undisputed), WBC, IBF, and The Ring middleweight championships, and Oscar De La Hoya's WBO middleweight championship.
Dmitry Pirog 
Hermann-Neuberger-Halle, Völklingen, Germany
Ricardo Manuel Genero
Baba Yara Stadium, Kumasi, Ghana
Ruben Diaz
Delray Raines
Hicklet Lau
Kassim Ouma 
Marco Antonio Rubio 
Marcos Primera
Jose Luis Rodrigues
Ojay Abrahams
Daniel Santos 
Santiago Samaniego 
Emiliano Valdez
Babaloa Johnson
Stefan Scriggins