Minimumweight / World Boxing Organization
WBO Mini flyweight
24 reigns, most recent first.
| Champion | From | To |
|---|---|---|
| Oscar Collazo | 2023-05-27 | present |
| Melvin Jerusalem | 2023-01-06 | 2023-05-27 |
| Masataka Taniguchi | 2021-12-14 | 2023-01-06 |
| Wilfredo Méndez | 2019-08-24 | 2021-12-14 |
| Vic Saludar | 2018-07-13 | 2019-08-24 |
| Ryuya Yamanaka | 2017-08-27 | 2018-07-13 |
| Tatsuya Fukuhara | 2017-04-14 | 2017-08-27 |
| Katsunari Takayama | 2016-08-20 | 2017-04-03 |
| Kosei Tanaka | 2015-05-30 | 2016-04-07 |
| Katsunari Takayama | 2014-12-31 | 2015-03-03 |
| Francisco Rodríguez Jr. | 2014-03-22 | 2014-12-15 |
| Merlito Sabillo | 2013-04-19 | 2014-03-22 |
| Moisés Fuentes | 2011-08-27 | 2013-04-19 |
| Raúl García | 2011-02-28 | 2011-08-27 |
| Donnie Nietes | 2007-09-30 | 2011-02-28 |
| Iván Calderón | 2003-05-03 | 2007-08-25 |
| Eduardo Ray Márquez | 2003-03-28 | 2003-05-03 |
| Jorge Mata | 2002-06-29 | 2003-03-28 |
| Kermin Guardia | 1998-05-30 | 2001 |
| Eric Jamili | 1997-12-19 | 1998-05-30 |
| Ricardo López | 1997-08-23 | 1997-08 |
| Alex Sánchez | 1993-12-22 | 1997-08-23 |
| Paul Weir | 1993-05-15 | 1993-12-16 |
| Rafael Torres | 1989-08-30 | 1993 |