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.
Brian Viloria is an American retired 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.
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 to 2007, Wonjongkam defended his title 17 times against 16 fighters, with both numbers being a flyweight record.
Hiroki Ioka is a former Lineal & WBC Minimumweight and WBA Light flyweight champion. He was the first ever WBC Minimumweight champion, winning the title immediately after the minimumweight division was created.
José Luis Bueno, is a retired Mexican professional boxer and former WBC and Lineal Super Flyweight Champion. Bueno was also the trainer of former WBC Light Flyweight Champion, Adrián Hernández.
Rodel Bryan Generalao Mayol, more commonly known as just Rodel Mayol, is a Filipino former professional boxer and the former WBC Light Flyweight World Champion.
Amado Ursua is a Mexican former boxer in the Light Flyweight division. He is a former Mexican national Light Flyweight and WBC world Light Flyweight champion.
Gilberto José Keb Baas is a Mexican professional boxer in the Light Flyweight division. Gilberto is the former WBC Light Flyweight Champion.
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.
Kompayak Porpramook is a Thai professional boxer in the light flyweight and flyweight divisions. He is the former World Boxing Association (WBA) interim flyweight champion and former World Boxing Council (WBC) light flyweight champion. Kompayak is considered the second Thai is WBC light flyweight champion from Saman Sorjaturong in the 1990s.
Pedro Gibrán Guevara Rocha is a Mexican professional boxer. He is a former WBC light flyweight champion. As of May 2017, he is ranked as the world's best light flyweight by The Ring magazine and the Transnational Boxing Rankings Board, and second by BoxRec.
Juan Francisco Estrada Romero is a Mexican professional boxer. He is a two-weight world champion, having held The Ring super flyweight title since 2019 and the WBA (Super) title since March 2021. He previously held the WBA (Unified) and WBO flyweight titles between 2012 and 2015, and the WBC super flyweight title in March 2021. He also challenged once for the WBA light flyweight title in 2012. As of January 2021, Estrada is ranked as the world's ninth best active boxer, pound for pound, by the Transnational Boxing Rankings Board (TBRB), and eighth by The Ring. He is also ranked as the world's best active super flyweight by The Ring and the TBRB and BoxRec.
Oswaldo Novoa Mora is a Mexican professional boxer who held the WBC strawweight title in 2014.
Yader Cardoza is a Nicaraguan professional boxer who challenged for the WBC light flyweight title in 2013.
Anabel Ortiz Morales is a Mexican professional boxer. She is a two-time mini flyweight world champion, having held the WBA title since 2013 and previously the WBC title from 2009 to 2011. She also challenged once for the unified WBA, and WBO light flyweight titles in 2012. As of May 2020, she is ranked as the world's fifth best active female minimumweight by BoxRec.
Ibeth Zamora Silva is a Mexican professional boxer. She is a two-division world champion, having held the WBC female flyweight title since 2018 and previously the WBC light flyweight title from 2013 to 2017, as well as the WBA interim female mini flyweight title from 2009 to 2011.
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. As of September 2020, she is ranked as the world's second best active female super flyweight by The Ring and third by BoxRec.
Joey Olivo is an American former professional boxer of Mexican descent who competed from 1976 to 1989. He held the WBA light flyweight title in 1985 and challenged for the WBC 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.
Lourdes Yoana Juárez Trejo is a Mexican professional boxer who has held the WBC female super flyweight title since 2020. As of December 2020, she is ranked as the world's best active female super flyweight by The Ring and second by BoxRec. She is the younger sister of former world champion boxer Mariana Juárez.
María Guadalupe Bautista Hernández is a Mexican professional boxer. She is a two-time world light flyweight champion, having held the WBA (Regular) female title since December 2020 and previously the IBF female title in 2018. As of December 2020, she is ranked as the world's ninth best active female light flyweight by BoxRec.
Gilberto Pedroza
Dionis Martinez
Alcides Martinez
Adrián Hernández 
Karim Guerfi 