The 2025 FIBA 3x3 World Cup, the premier international competition for 3x3 basketball, will be held in Ulaanbaatar, the capital of Mongolia, from June 23 to 29, 2025. It marks the event's return to Asia after a seven-year hiatus and also makes Mongolia the first host of this tournament in its history.

Organized by the International Basketball Federation (FIBA), the FIBA 3x3 World Cup is the top-tier competition for 3x3 basketball. It was first staged in Athens, Greece, in 2012. Each edition features men's and women's divisions, with 20 teams competing in each category. As the highest-level competitive arena for 3x3 basketball, the tournament has also become a crucial qualification platform for the Olympic Games since 3x3 basketball was officially included in the Olympic program in 2017, boasting both high competitiveness and profound sport value.