The Men's 1989 World Amateur Boxing Championships were held in Moscow, Soviet Union from September 17 to October 1, 1989. The fifth edition of this competition, held a year after the Summer Olympics in Seoul, South Korea, was organised by the world governing body for amateur boxing AIBA.

The IBA Men's World Boxing Championships and the IBA Women's World Boxing Championships are biennial amateur boxing competitions organised by the International Boxing Association, which is the sport governing body. Alongside the Olympic boxing programme, they are the highest level of competition for the sport. The championships were first held for men in 1974 and the first women's championships were held over 25 years later in 2001.