Here is a list of all the major Boxing World Champions who currently hold an IBF, WBC, WBA, or WBO title from heavyweight to lightweight.
Title holders with four championships are considered undisputed in the modern era.
WBC Franchise and WBA regular titles are not world championships and do not count.
Current Boxing World Champions are:
Heavyweight [225lbs+]
Oleksandr Usyk – WBA / IBF / WBO Champion
Tyson Fury – WBC Champion
Bridgerweight – [224]
Oscar Rivas – WBC Champion
Cruiserweight [200]
Ilunga Makabu – WBC Champion
Mairis Briedis – IBF Champion
Lawrence Okolie – WBO Champion
Arsen Goulamirian – WBA Champion
Light-heavyweight [175]
Artur Beterbiev – IBF / WBC / WBO Champion
Dmitry Bivol – WBA Champion
Super middleweight [168]
Canelo Alvarez – WBC / WBA / IBF / WBO Champion
Middleweight [160]
Demetrius Andrade – WBO Champion
Gennadiy Golovkin – IBF / WBA Champion
Jermall Charlo – WBC Champion
Super Welterweight [154]
Jermell Charlo – WBC / IBF / WBO / WBA Champion
Walterweight [147]
Terence Crawford – WBO Champion
Errol Spence Jr. – IBF / WBA / WBC Champion
Super Lightweight [140]
All titles vacant
Lightweight [135]
Devin Haney – WBC / IBF / WBO / WBA Champion
Super Featherweight [130]
Shakur Stevenson – WBC / WBO Champion
Joe Cordina – IBF Champion
Roger Gutierrez – WBA Champion
Featherweight [126]
Emanuel Navarrete – WBO Champion
Josh Warrington – IBF Champion
Leo Santa Cruz – WBA Champion
Mark Magsayo – WBC Champion
Super Bantamweight [122]
Stephen Fulton – WBO / WBC Champion
Murodjon Akhmadaliev – IBF / WBA Champion
Bantamweight [118]
Naoya Inoue – IBF / WBC / WBA Champion
Paul Butler – WBO Champion
Super Flyweight [115]
Kazuto Ioka – WBO Champion
Fernando Martinez – IBF Champion
Juan Francisco Estrada – WBA Champion
Jesse Rodriguez – WBC Champion
Flyweight [112]
Junto Nakatani – WBO Champion
Sunny Edwards – IBF Champion
Artem Dalakian – WBA Champion
Julio Cesar Martinez – WBC Champion
Light Flyweight [108]
Jonathan Gonzalez – WBO Champion
Felix Alvarado – IBF Champion
Hiroto Kyoguchi – WBA Champion
Kenshiro Teraji – WBC Champion
Strawweight [105]
Masataka Taniguchi – WBO Champion
Rene Mark Cuarto – IBF Champion
Knockout CP Freshmart – WBA Champion
Panya Pradabsri – WBC Champion