The 2017 FIBA 3x3 U18 World Cup, which was hosted by China, was an international 3x3 basketball event that featured separate competitions for men's and women's under-18 national teams.

The tournament was held in Chengdu in front of the New Century Global Center.

[1] It was co-organized by the FIBA.

The FIBA 3x3 Federation Ranking was used as basis to determine the participating FIBA member associations.