Champions

WBU Heavyweight World Champions

WBU Cruiserweight World Champions

WBU Light Heavyweight World Champions

WBU Super Middleweight World Champions

WBU Middleweight World Champions

WBU Super Welterweight World Champions

WBU Welterweight World Champions

WBU Super Lightweight World Champions

WBU Lightweight World Champions

WBU Super Featherweight World Champions

WBU Featherweight World Champions

WBU Super Bantamweight World Champions

WBU Bantamweight World Champions

WBU Super Flyweight World Champions

WBU Flyweight World Champions

WBU Light Flyweight World Champions

WBU Minimumweight World Champions

WBU Heavyweight World Champions

WBU Cruiserweight World Champions

WBU Light Heavyweight World Champions

WBU Super Middleweight World Champions

WBU Middleweight World Champions

WBU Super Welterweight World Champions

WBU Welterweight World Champions

WBU Super Lightweight World Champions

WBU Lightweight World Champions

WBU Super Featherweight World Champions

WBU Featherweight World Champions

WBU Super Bantamweight World Champions

WBU Bantamweight World Champions

WBU Super Flyweight World Champions

WBU Flyweight World Champions

WBU Light Flyweight World Champions

WBU Minimumweight World Champions