Flyweight: up to 112 lb / 50.8 kg

WBC – Yessica Chavez – Mexico
WBA – Naoko Fujioka – Japan
WBO – Arely Mucino – Mexico
IBF – Leonela Yudica – Argentina
IBO – Gloria Gallardo – Mexico
WBF – Laetitia Arzelier – France
WIBA – Eun Hye Lee – South Korea
WIBF – Alicia Holzken – Netherlands
GBU – Alicia Holzken – Netherlands

* Inactive organizations have been delisted until proven active