[1] The 2020 Summer Olympics were postponed due to the COVID-19 pandemic,[2][3] and the judo competitions were held in July 2021 at Nippon Budokan.

The tournament brackets were drawn on 23 July, with the top 8 judoka in each weight class seeded.

Host nation Japan has reserved a spot in each of all 14 events, while twenty are made available to NOCs through a Tripartite Commission Invitation.

The remaining judoka underwent a qualifying process to earn a spot for the Games through the world ranking list prepared by International Judo Federation on June 28, 2021,[7][8] and finalized on 5 July.

[7] [10][11] Source: [12] *   Host nation (Japan)Judo, since the sport's introduction in the 1964 Tokyo Olympics, has changed and evolved over time.

[14] In addition, the mixed team competition was added as a new content of Judo games in the Olympics.

[16] Selected to compete at the 2020 Summer Games in the -73 kg weight class, Algerian judoka Fethi Nourine and his coach Amar Benikhlef announced his withdrawal following the conclusion of the draw of competitors.