The men's coxless four event at the 2020 Summer Olympics took place from 24–28 July 2021 at the Sea Forest Waterway.

South Africa and Canada qualified via the final qualification regatta, defeating France, Austria, Belarus and Ukraine.

The other nine nations to qualify were: Romania, Great Britain, Italy, the United States, Australia, the Netherlands, Switzerland, South Africa, and Canada.

Each National Olympic Committee (NOC) has been limited to a single boat (four rowers) in the event.

There are 10 qualifying places in the men's coxless four, thus there are forty athletes:[3] The COVID-19 pandemic delayed many of qualification events.