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.
Santos Benigno Laciar, known familiarly as Santos Laciar and nicknamed Falucho, is an Argentine who was boxing's world flyweight and super flyweight champion.
Jorge Armando Arce Armenta, best known as Jorge Arce, is a Mexican former professional boxer who competed from 1996 to 2014. He is a multiple-time world champion, and the second boxer from Mexico to win world titles in four weight divisions. In a storied career, Arce held the WBO light flyweight title from 1998 to 1999; the WBC and lineal light flyweight titles from 2002 to 2004; the WBO super flyweight title in 2010; the WBO junior featherweight title in 2011; and the WBO bantamweight title from 2011 to 2012. Additionally he held the WBC interim flyweight title from 2005 to 2006, the WBA interim super flyweight title from 2008 to 2009, and challenged once for the WBC featherweight title in his final fight in 2014.
Pascual Nicolás Pérez was an Argentine flyweight boxer. Pérez was born in Tupungato in the Mendoza Province of Argentina, he went on to make history by becoming Argentina's first world boxing champion.
Francisco Villaruel Guilledo, more commonly known as Pancho Villa, was a Filipino professional boxer. Villa, who stood only 5 feet and 1 inch (154 cm) tall and never weighed more than 114 pounds (51 kg), despite the racial discrimination of that time, rose from obscurity to become the first Asian to win the World Flyweight Championship in 1923, earning the reputation in some quarters as one of the greatest Flyweight boxers in history. He was never knocked out in his entire boxing career, which ended with his sudden death at only twenty-three from complications following a tooth extraction.
Kōki Kameda is a Japanese former professional boxer who competed from 2003 to 2015. He is a three-weight world champion, having held the WBA light-flyweight title from 2006 to 2007, the WBC and lineal flyweight titles from 2009 to 2010, and the WBA (Regular) bantamweight title twice between 2010 and 2013. His younger brothers, Daiki and Tomoki, are also professional boxers.
Pongsaklek Wonjongkam is a former Thai professional boxer and current boxing trainer. He is a two-time former lineal flyweight champion. During his first reign as world flyweight champion, which lasted between 2001 and 2007, Wonjongkam defended his title 17 times against 16 fighters, with both numbers being a flyweight record.
Masamori Tokuyama is a Japanese-born Korean former professional boxer who competed from 1994 to 2006. He held the WBC super-flyweight title twice between 2000 and 2006.
Brahim Asloum is a French boxer. He held the WBA light flyweight title from 2007 to 2009. As an amateur boxer, Asloum won Light Flyweight Gold medal at the 2000 Summer Olympics. His Olympic win was France's first Olympic gold medal in boxing in 64 years.
Yuri Yakovlevich Arbachakov is a Russian former professional boxer who competed from 1990 to 1997. He held the WBC flyweight title from 1992 to 1997.
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.
Rolando Bohol is a Filipino former professional boxer and actor. He competed from 1984 to 1994, holding the IBF flyweight title in 1988, and challenged once for the IBF bantamweight title in 1994.
Donnie Liboon Nietes is a Filipino professional boxer. He is a world champion in four weight-classes, having previously held the WBO mini-flyweight title from 2007 to 2011; the WBO and The Ring magazine junior-flyweight titles between 2011 and 2016; IBF flyweight title from 2017 to 2018; and the WBO junior-bantamweight title from 2018 to 2019. He is the longest-reigning Filipino boxing world champion, surpassing in 2014 the record set in 1967 by Boxing Hall of Fame inductee Gabriel "Flash" Elorde. He was one of the first three Asian fighters with world titles in at least four weight classes alongside fellow Filipinos Manny Pacquiao and Nonito Donaire.
Yuh Myung-woo is a South Korean former professional boxer who competed between 1982 and 1993. He was a two-time WBA light-flyweight champion, having held the title between 1985 and 1993. He, together with Jung-Koo Chang, were considered as the best boxers South Korea has ever produced.
Román Alberto González Luna, best known by his nickname "Chocolatito", is a Nicaraguan professional boxer. He is the first boxer from Nicaragua to win world titles in four weight classes, having surpassed his mentor, idol, and former three-weight world champion, the late great Alexis Argüello.
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.
Kazuto Ioka is a Japanese professional boxer. Who held the unified WBA and WBC mini-flyweight titles between 2011 and 2012, the WBA (Regular) light-flyweight title from 2012 to 2014, the WBA flyweight title from 2016 to 2017, having previously held the WBA (Regular) flyweight title from 2015 to 2016, and the WBO super-flyweight title from 2019 to 2023, and the WBA super-flyweight title from 2023 to 2024.
Juan Francisco Estrada Romero is a Mexican professional boxer. He is a two-weight world champion, having held the WBC super flyweight title since 2022 and The Ring super flyweight title since 2019. He previously held the WBA (Unified) and WBO flyweight titles between 2012 and 2015, and the WBC super flyweight title in March 2021 and the WBA (Super) title from March 2021 to August 2022. He also challenged once for the WBA light flyweight title in 2012.
Kosei Tanaka is a Japanese professional boxer. He is a four-weight world champion, having held the World Boxing Organization (WBO) mini-flyweight title from 2015 to 2016; the WBO junior-flyweight title from 2016 to 2017; the WBO flyweight title from 2018 to 2020; and the WBO super-flyweight title in February 2024. Upon winning his first world title in only his fifth bout, he became the fastest Japanese fighter ever to become a world champion. Along with Vasyl Lomachenko, he is also the fastest ever fighter to win titles in three weight-classes, having accomplished the feat in only 12 bouts. He also surpassed Oscar De La Hoya to become the fastest four division champion, setting the bar at 21 fights.
Kwon Soon-chun is a retired South Korean boxer.
