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.
Miguel Angel Canto Solis is a Mexican former world boxing champion who held the WBC and Lineal flyweight titles.
Horacio Enrique Accavallo was an Argentine professional boxer who competed from 1956 until 1967. He held the undisputed WBA and WBC flyweight titles between March 1966 to October 1968.
Ricardo López Nava is a Mexican former professional boxer who competed from 1985 to 2001. He was a two-weight world champion, having held the WBC mini flyweight title from 1990 to 1998, defending it against a record-breaking 21 opponents; the WBA and WBO mini flyweight titles between 1997 and 1998; and the IBF junior flyweight title from 1999 until his retirement in 2001. He is one of just fifteen world boxing champions to retire without a loss. He is the father of undefeated former boxer Alonso López.
Prudencio Cardona was a Colombian professional boxer who was world flyweight champion. He represented his native country at the 1972 Summer Olympics in Munich, West Germany. He was the older brother of former super bantamweight world champion, Ricardo Cardona.
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.
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.
Cristian Ricardo Lucio Mijares is a Mexican former professional boxer. He is a two-time super flyweight champion, having held the unified WBC and WBA (Unified) titles from 2006 to 2008 and the IBF title from 2010 to 2011.
Daisuke Naito is a former professional boxer from Japan. He is the former WBC and lineal flyweight champion, and former Japanese and OPBF flyweight champion.
Carlos Roberto Cuadras Quiroa is a Mexican professional boxer who held the WBC super flyweight title from 2014 to 2016. As an amateur he won a gold medal in the bantamweight division at the 2007 Pan American Games.
Adrián Hernández is a Mexican former professional boxer who competed from 2006 to 2015. He is a two-time world champion, having held the WBC light flyweight title twice between 2011 and 2014.
Canelo Álvarez vs. Kermit Cintrón was a professional boxing match contested on November 26, 2011, for the WBC super welterweight championship. The fight took place at the Plaza de Toros in Mexico City. It was a split-site doubleheader headlined which featured junior lightweight Adrien Broner against separate opponents from Broner's hometown in Cincinnati.
Xiong Chaozhong or Xiong Zhaozhong is a Chinese professional boxer. He is the first Chinese/Hmong to win a boxing world title, having held the WBC mini-flyweight title from 2012 to 2014.
Chayaphon Moonsri, known as Wanheng Menayothin or Wanheng Kaiyanghadaogym is a Thai professional boxer and Muay Thai fighter who held the WBC mini-flyweight title from 2014 to 2020.
José Eduardo Argumedo Barraza is a Mexican professional boxer who held the IBF mini flyweight title from 2015 to 2017.
Naoko Fujioka is a Japanese former professional boxer. She is Japan's first ever five-division world champion, having held the WBA female flyweight title between March 2017 to April 2022. She also previously held the WBC female minimumweight; WBO female junior-flyweight; WBA female super-flyweight; and WBO female bantamweight titles between 2012 and 2017.
Kenia Stephanie Enríquez Rosas is a Mexican professional boxer who is the interim WBC female flyweight World champion. She previously held the WBO female flyweight World title and the interim WBC female light-flyweight World title.
Jessica Chávez Valencia is a Mexican professional boxer. She is a former world champion in two weight classes, having held the IBF female light flyweight title from 2011 to 2013 and the WBC female flyweight title from 2015 to 2017. She also challenged for the WBC female light flyweight title in 2014 and the WBC female super flyweight title in 2019.
Joey Olivo is an American former professional boxer of Mexican descent who competed from 1976 to 1989. He held the WBA world light flyweight title in 1985 and challenged for the WBC world light flyweight title in 1981. At regional level he held the WBC-NABF light flyweight title in 1983; the IBF-USBA flyweight title in 1984; and the WBC-NABF flyweight title in 1988.
María Guadalupe Bautista Hernández is a Mexican professional boxer. She is a two-time world female light-flyweight champion, having held the WBA (Regular) and the IBF titles.
Esteban Bermudez 
Wanheng Menayothin 
Alcides Martinez
Xiong Chaozhong