Judo at the 2020 Summer Olympics in Tokyo featured around 393, 128 judoka competing in 15 events, seven each for both men and women as well as a new mixed team event. The 2020 Summer Olympics were postponed due to the COVID-19 pandemic, and the judo competitions were held in July 2021 at Nippon Budokan.
Taiwan competed under the designated name "Chinese Taipei" at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. It was also the nation's tenth consecutive appearance at the Summer Olympics.
Kim Ji-su is a South Korean judoka.
Japan competed as the host nation of the 2020 Summer Paralympics in their capital Tokyo from 24 August to 5 September 2021.
Diyora Keldiyorova is an Uzbekistani judoka. She won the silver medal in the women's 52 kg event at the 2023 World Judo Championships held in Doha, Qatar. She won the gold medal in her event at the 2019 Asian-Pacific Judo Championships held in Fujairah, United Arab Emirates.
Shiho Tanaka is a Japanese judoka and Wrestler. Her older brother, Genta Tanaka, placed second in the over 100 kg division at the 2015 World Judo Juniors Championships.
Kachakorn Warasiha is a Thai judoka. She is a gold medalist in the women's 52 kg event at the 2019 Southeast Asian Games held in the Philippines. She is also a bronze medalist in this event at the 2018 Asian Games held in Jakarta, Indonesia.
Park Da-sol is a South Korean judoka. She won the silver medal in the women's 52 kg event at the 2018 Asian Games held in Jakarta, Indonesia. In 2021, she competed in the women's 52 kg event at the 2020 Summer Olympics in Tokyo, Japan.
Saki Niizoe is a Japanese judoka. She won one of the bronze medals in the women's 70 kg event at the 2022 World Judo Championships held in Tashkent, Uzbekistan. She won the gold medal in the women's 70 kg event at the 2018 Asian Games held in Jakarta, Indonesia.
Park Yu-jin is a South Korean judoka. She won the silver medal in the women's 78 kg event at the 2018 Asian Games held in Jakarta, Indonesia.
Ma Zhenzhao is a Chinese judoka.
Han Hee-ju is a South Korean judoka. She competed at the World Judo Championships in 2017 and in 2019 and on both occasions she was eliminated in her first match. At the 2021 World Championships Han reached the third round.
Humaira Ashiq is a Pakistani judoka.
Jorre Verstraeten is a Belgian judoka. He won one of the bronze medals in the men's 60 kg event at the European Judo Championships in 2020 and 2022. He also won one of the bronze medals in the men's 60 kg event at the 2019 European Games held in Minsk, Belarus.
Michaela Polleres is an Austrian judoka. In 2021, she won the silver medal in the women's 70 kg event at the 2020 Summer Olympics in Tokyo, Japan. She is also a bronze medalist at the 2021 and 2023 World Championships and the 2018 European Championships. She is a third degree black belt.
Astride Gneto is a French judoka. She won one of the bronze medals in the women's 52 kg event at the 2018 Mediterranean Games held in Tarragona, Spain.
Anna-Maria Wagner is a German judoka. She won the gold medal in the women's 78 kg event at the 2021 World Judo Championships held in Budapest, Hungary. She also won one of the bronze medals in both the women's 78 kg and mixed team events at the 2020 Summer Olympics held in Tokyo, Japan.
Sardor Nurillaev is an Uzbekistani judoka. He won the gold medal in the men's 66 kg event at the 2021 Asian-Pacific Judo Championships held in Bishkek, Kyrgyzstan.
The World Judo Juniors Championships are the highest level of international judo competition for juniors, 21 years of age or less. The championships are held once every year by the International Judo Federation, and qualified judoka compete in their respective categories as representatives of their home countries. The World Juniors Championships are the only junior event awarding ranking points for the seniors world ranking list. The last edition of the championships took place in Odivelas, Portugal in 2023.
Rinata Sultanova is a Kazakhstani cyclist. She won the gold medal in the women's individual pursuit, women's scratch and women's omnium events at the 2021 Islamic Solidarity Games held in Konya, Turkey.
Uzbekistan 
