Basketball at the 2020 Summer Olympics in Tokyo, Japan was held from 24 July to 8 August 2021.

[1] The basketball competitions were held at the Saitama Super Arena in Saitama, while the debuting 3x3 competitions were held at the temporary Aomi Urban Sports Park in Tokyo.

Thus, while two of the World Qualifying Tournaments provided quota spots to their three top teams, the other two tournaments provided quota spots only to the top two teams plus either the host nation or the World Cup winners.

Four teams per gender (reduced to three if Japan uses its guaranteed place) were determined via world ranking.

The final team per gender were determined in a Universality Olympic Qualifying Tournament.