The men's floor event at the 2020 Summer Olympics was held on 24 July and 1 August 2021 at the Ariake Gymnastics Centre.

[2] In the absence of heavyweights such as the three-time world floor champion (2013, 2015 and 2017) Kenzō Shirai of Japan, due to injury, Artem Dolgopyat of Israel won the event on a tie-breaker over Spain's Rayderley Zapata — it is the first Olympic medal for both.

A National Olympic Committee (NOC) could enter up to 6 qualified gymnasts: a team of 4 and up to 2 specialists.

The top three teams at the 2018 World Artistic Gymnastics Championships (China, Russia, and Japan) and the top nine teams (excluding those already qualified) at the 2019 World Artistic Gymnastics Championships (Ukraine, Great Britain, Switzerland, the United States, Chinese Taipei, South Korea, Brazil, Spain, and Germany) earned team qualification places.

The top 8 qualifiers in the qualification phase (limit two per NOC) advanced to the apparatus final.