The FIBA Under-19 Basketball World Cup (formerly FIBA Under-19 World Championship) is the under-19 men's world basketball championship organised by the International Basketball Federation (FIBA).

From its inauguration in 1979, until 2007, it was held every four years.

[1] The current champions are Spain, who defeated France in 2023 in Hungary.

The next edition will take place in 2025 in Switzerland.

^1 A round-robin tournament determined the final standings.