Basketball was among the sports contested at the 2021 SEA Games in Vietnam.

The basketball tournament in the games featured four events: traditional 5x5 basketball and 3x3 basketball, for both men and women.

The competition was held at Thanh Trì District Sporting Hall in Hanoi, Vietnam.

[1] 3x3 basketball was held from 13 to 14 May 2022 while the regular 5x5 basketball event will be held from 16 to 22 May 2022.

[2] *   Host nation (Vietnam)