The mixed doubles table tennis event was part of the table tennis programme at the 2020 Summer Olympics in Tokyo. The event took place from 24 July to 26 July 2021 at Tokyo Metropolitan Gymnasium. This was the first time this event was ever contested in the Summer Olympics. Jun Mizutani and Mima Ito won Japan's first-ever table tennis Olympic gold medal.
The medals for the competition were presented by Li Lingwei, IOC Member, China; and the medalists' bouquets were presented by Raul Calin, ITTF Secretary General; Spain.