The 2021 FIBA 3x3 U18 World Cup – Women's tournament is the ninth edition of this competition.

The event was held in Debrecen, Hungary.

[1] United States won their fourth successive title with a win against Germany in the final.

[2] Hungarian city, Debrecen, was given the hosting rights for the second time in a row.

The seeding and groups were as follows: Germany (1) Poland (8) Romania (9) New Zealand (16) Spain (17) Uzbekistan (2) France (7) Mexico (10) Netherlands (15) Hungary (18) (H) Brazil (3) Chile (6) Japan (11) Latvia (14) Great Britain (19) Ukraine (4) Egypt (5) Mongolia (12) Kyrgyzstan (13) United States (20) All times are local.