Following the name of the champion(s): Indicates the number of times the competitor has held that title at that point.
[...]
Indicates a gap in the listing where title changes are not known.
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Title was held or changed hands no later than this. In these cases, it is known that a competitor held the title at a certain time but not when he/she won it.
@
Order uncertain. Different titleholders may be known for the same year, for example, but it is not known who held the title before whom.
#
Unofficial or disputable claims. These are usually matches that certainly took place, but where there is doubt that the competitor shown should be recognized as a true title holder. These listings are also italicized.
World Boxing Organization
World Flyweight Title (as of 2025-08-15)
* Bolded letters in the competitor's name, if any, indicate the surname/family name.
Elvis Álvarez
1989-03-03
Medellín, COL
Defeats Miguel Mercedes; vacates in 90-03 due to lack of interest in it.
Isidro Pérez
1990-08-18
Ponce, PR, USA
Defeats Angel Rosario.
Pat Clinton
1992-03-18
Glasgow, SCT, GBR
Jacob Matlala
1993-05-15
Glasgow, SCT, GBR
Alberto Jiménez
1995-02-11
Hammanskraal, RSA
Carlos Gabriel Salazar
1996-12-13
Buenos Aires, ARG
Ruben Sánchez León
1998-08-14
Mexicali, MEX
José López
1999-04-23
Zaragoza, ESP
Vacates in 99.
Isidro García
1999-12-18
Indio, CA, USA
Defeats José López.
Fernando Montiel
2000-12-15
Ciudad Obregón, MEX
Vacates on in 2001 or 2002 to move up to the junior bantamweight class.
Adonis Rivas
2002-05-04
Managua, NCR
Defeats Jair Jimenez.
Omar Andrés Narváez
2002-07-13
Buenos Aires, ARG
Vacates in 10 to move up to the junior bantamweight class.
Julio César Miranda
2010-06-12
Puebla, PU, MEX
Defeats Richie Mepranum.
Brian Viloria
2011-07-16
Honolulu, HI, USA
Juan Francisco Estrada
2013-04-06
Macao, CHN
Vacates on 16-09-14 to move up to the junior bantamweight class.
Zou Shiming
2016-11-05
Las Vegas, NV, USA
Defeats Prasitsak Phaprom.
Kimura Shō
2017-07-28
Shanghai, CHN
Tanaka Kōsei
2018-09-24
Nagoya, JPN
Vacates on 20-01-31 to move up to the junior bantamweight class.
Nakatani Junto
2020-11-06
Tōkyō, JPN
Defeats Giemel Magramo; vacates on 22-10-27 upon moving up to the junior bantamweight class.
Jesse Rodriguez
2023-04-08
San Antonio, TX, USA
Defeats Cristian Gonzalez Hernandez; also wins IBF world title on 23-12-16; vacates both titles in 24-03 upon moving up to the junior bantamweight class.