The AIBA Youth World Boxing Championships and the AIBA Junior World Boxing Championships are amateur boxing competitions organised by the International Boxing Association (AIBA), the sport's governing body, for "Youth" competitors—between the age of 17-18 years old, and for "Junior" competitors—between the age of 15-16 years old, respectively. The Youth world championship began in 1979 in Yokohama, Japan, and has been held biennially since 1990. The Junior world championship began in 2001 in Baku, Azerbaijan, and has been held biennially since 2007.
Starting from 2008, the Junior world championships, which ran from 1979 to 2006, was renamed the Youth World Boxing Championships. Starting from 2009, the Cadet world championships, which ran from 2001 to 2007, was renamed the Junior World Boxing Championships.