Guillermo Gonzalez, better known as Pedro "El Rockero" Alcázar was a Panamanian boxer who won the WBO Super flyweight championship, and then sustained fatal injuries in the ring.
Michael Carbajal is an American five-time world boxing champion of Mexican descent. His nickname was "Little Hands of Stone" after his favorite boxer, "Hands of Stone" Roberto Durán.
Frank "Frankie" Genaro was an American former Olympic gold medalist and a 1928 National Boxing Association (NBA) World flyweight Champion. He is credited with engaging in 130 bouts, recording 96 victories, 26 losses, 8 draws and 4 No Decisions.
Bolat Zhumadilov is a Kazakh boxer who competed in the Men's Flyweight at the 1996 and 2000 Summer Olympics and won silver medals on both occasions. He won the world title at the 1999 World Amateur Boxing Championships in Houston, Texas, United States.
Markus Beyer was a German professional boxer who won the World Boxing Council super middleweight title. As an amateur, he represented Germany at the 1992 and 1996 Olympic Games in the light middleweight division. He also won a bronze medal at the 1995 World Amateur Boxing Championships and silver at the 1996 European Amateur Boxing Championships.
Brian Viloria is a retired American professional boxer of Filipino descent. He is a former unified WBA and WBO flyweight champion, as well as a former WBC and IBF light flyweight champion. His nickname of "The Hawaiian Punch" was first given to him by Jesus Salud, a fellow Hawaiian of Filipino descent and himself a former world champion in boxing.
Maikro Romero is a Cuban boxer, who won the gold medal in the Men's Flyweight category at the 1996 Summer Olympics in Atlanta.
Fernando Montiel Martínez is a Mexican professional boxer. He is a multiple-time former world champion in three weight classes, having held the WBO flyweight title from 2001 to 2002, the WBO junior bantamweight title twice between 2002 and 2008, and the unified WBC and WBO bantamweight titles from 2010 to 2011.
Marcellus Joseph Johnson, better known as Mark "Too Sharp" Johnson, is an American former professional boxer who competed from 1990 to 2006. He is a three-time world champion in two weight classes, having held the IBF flyweight title from 1996 to 1999; the IBF junior bantamweight title from 1999 to 2000; and the WBO junior bantamweight title from 2003 to 2004.
Omar Andrés Narváez is an Argentine professional boxer. He is a two-weight world champion, having held the WBO flyweight title from 2002 to 2010, and the WBO junior bantamweight title from 2010 to 2014. Narváez holds world record for the most total successful defenses of world titles. He is the longest reigning flyweight champion in history.
Zou Shiming is a Chinese former boxer and two-time Olympic champion. In amateur boxing, he is China's most successful boxer of all time. In the light-flyweight division, he won three consecutive Olympic medals, as well as three World Amateur Boxing Championships gold medals in 2005, 2007 and 2011. He competed in professional boxing from 2013 to 2017 and held the WBO flyweight title from 2016 to 2017.
Irene Pacheco, also known as Mambaco, is a Colombian former professional boxer who competed from 1993 to 2007. He held the IBF flyweight title from 1999 to 2004 and challenged for the WBO bantamweight title in 2007.
Zeta Celestino Oliveros Gorres is a Filipino former professional boxer who challenged once for the WBO super-flyweight title.
Nonito Gonzales Donaire Jr. is a Filipino American professional boxer. He has held multiple world championships in four weight classes from flyweight to featherweight, and is the oldest boxer in history to win a bantamweight world title, as well as being the first three-time champion in that weight class. Donaire has also held world championships in three consecutive decades: the 2000s, 2010s and 2020s, being the sixth boxer to do so after Evander Holyfield, Manny Pacquiao, Bernard Hopkins, Erik Morales, and Floyd Mayweather Jr.
Arthur Anthony Johnson is a former professional boxer from the United States, nicknamed "Flash".
José Ángel "Carita" López Rivera is a Puerto Rican former professional boxer who has competed in the flyweight and super flyweight divisions. His first professional championship was the Puerto Rican flyweight title, which won by defeating José Luis De Jesús. López's first championship opportunity was against Alberto Jiménez for the World Boxing Organization's flyweight title, in a contest that he lost by unanimous decision. This was followed by three more world championships fights, two of them for major titles. However, López lost these contests by unanimous decision. On June 23, 2001, López won the WBO Latino super flyweight title. After losing to Fernando Montiel in his fifth world title opportunity, he recurred to fight for regional championships. From 2001 to 2008, López compiled an undefeated record consisting of 14 wins and a single draw. On March 28, 2009, López defeated Pramuansak Phosuwan to win the WBO's super flyweight world championship.
Hermensen Ballo is a retired male boxer from Indonesia. He twice represented his native South East Asian country at the Summer Olympics: 1996 and 2000. In 1996 he was stopped in the second round of the men's flyweight division by eventual bronze medalist Zoltan Lunka from Germany after defeating Guy-Elie Boulingui of Gabon in his opening contest. In 2000, he lost his first bout to José Navarro of the United States.
Chang Jung-Koo is a South Korean former professional boxer who competed from 1980 to 1991. He held the WBC light-flyweight title from 1983 to 1988.
Jesús Alberto Chong is a Mexican former professional boxer. He is a former Mexican National, NABF, and the WBO Light Flyweight Champion.
Isidro García Ayala is a Mexican former professional boxer who competed from 1994 to 2010. He held the WBO flyweight title from 1999 to 2000.
