Combattants MMA — FusBoxe

Brazil, the previous host of the 2016 Olympics at Rio de Janeiro, competed 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, because of the COVID-19 pandemic. It was the nation's twenty-third appearance at the Summer Olympics, having competed in all editions of the modern era from 1920 onwards, except the 1928 Summer Olympics in Amsterdam.