The Men's FIH Hockey Junior World Cup, formerly known as the Hockey Junior World Cup, is an international field hockey competition organized by the International Hockey Federation (FIH). The tournament was started in 1979. Since 1985 it has been held every four years. Competitors must be under the age of 21 as of December 31 in the year before the tournament is held. There is also a corresponding event for the women's junior teams. This competition started in 1989 and uses the same format as the men's event.