Kazuto Ioka (井岡 一翔, Ioka Kazuto, born 24 March 1989) is a Japanese professional boxer. Who held the unified WBA and WBC mini-flyweight titles between 2011 and 2012, the WBA (Regular) light-flyweight title from 2012 to 2014, the WBA flyweight title from 2016 to 2017, having previously held the WBA (Regular) flyweight title from 2015 to 2016, and the WBO super-flyweight title from 2019 to 2023, and the WBA super-flyweight title from 2023 to 2024.