The 2025 FIBA Under-19 Basketball World Cup was the 17th edition of the FIBA Under-19 Basketball World Cup, the biennial international men's youth basketball championship contested by the U19 national teams of the member associations of FIBA. The tournament was held in Lausanne, Switzerland, from 28 June to 6 July 2025. This marked the first time that Switzerland hosted a FIBA global tournament.