Light flyweight / International Boxing Federation
IBF Junior flyweight
31 reigns, most recent first.
| Champion | From | To |
|---|---|---|
| Thanongsak Simsri | 2025-06-19 | present |
| Masamichi Yabuki | 2024-10-12 | 2025-04-10 |
| Sivenathi Nontshinga | 2024-02-16 | 2024-10-12 |
| Adrian Curiel | 2023-11-04 | 2024-02-16 |
| Sivenathi Nontshinga | 2022-09-03 | 2023-11-04 |
| Felix Alvarado | 2018-10-29 | 2022-03-21 |
| Hekkie Budler | 2018-05-20 | 2018-07-25 |
| Ryoichi Taguchi | 2017-12-31 | 2018-05-20 |
| Milan Melindo | 2017-05-21 | 2017-12-31 |
| Akira Yaegashi | 2015-12-29 | 2017-05-21 |
| Javier Mendoza | 2014-09-20 | 2015-12-29 |
| John Riel Casimero | 2012-07-20 | 2014-05-02 |
| Ulises Solís | 2011-04-30 | 2012-07-20 |
| Luis Alberto Lazarte | 2010-05-29 | 2011-04-30 |
| Carlos Tamara | 2010-01-23 | 2010-05-29 |
| Brian Viloria | 2009-04-19 | 2010-01-23 |
| Ulises Solís | 2006-01-07 | 2009-04-19 |
| Will Grigsby | 2005-05-14 | 2006-01-07 |
| Víctor Burgos | 2003-02-15 | 2005-05-14 |
| Ricardo López | 1999-10-02 | 2002-11-27 |
| Will Grigsby | 1998-12-18 | 1999-10-02 |
| Mauricio Pastrana | 1997-12-13 | 1998-08-28 |
| Mauricio Pastrana | 1997-01-18 | 1997-05-09 |
| Michael Carbajal | 1996-03-16 | 1997-01-18 |
| Saman Sorjaturong | 1995-07-15 | 1995-11-17 |
| Humberto González | 1994-02-19 | 1995-07-15 |
| Michael Carbajal | 1990-07-29 | 1994-02-19 |
| Muangchai Kittikasem | 1989-05-02 | 1990-07-29 |
| Tacy Macalos | 1988-11-04 | 1989-05-02 |
| Choi Jum-hwan | 1986-12-07 | 1988-11-04 |
| Dodie Boy Peñalosa | 1983-12-10 | 1986-07-18 |