Gennadiy Gennadyevich Golovkin (Cyrillic: Генна́дий Генна́дьевич Голо́вкин; also spelled Gennady; born 8 April 1982), often known by his nickname "GGG" or "Triple G", is a Kazakhstani professional boxer. He has held multiple middleweight world championships, and is a two-time unified champion, having held the IBF title since 2019 and the WBA (Super) title since April 2022. Previously he held the unified WBA (Super), WBC and IBF titles between 2014 and 2018, and has challenged once for the undisputed super middleweight championship in 2022. He is also a two-time IBO middleweight champion, in his second reign since 2019.