The men's tournament in volleyball at the 2020 Summer Olympics was the 15th edition of the event at the Summer Olympics, organised by the world's governing body, the FIVB, in conjunction with the IOC. It was held in Tokyo, Japan from 24 July to 7 August 2021. It was originally scheduled to take place from 25 July to 8 August 2020, but due to the COVID-19 pandemic, the IOC and the Tokyo 2020 Organising Committee announced on 24 March 2020 that the 2020 Summer Olympics would be delayed to 2021. Because of this pandemic, all matches were played behind closed doors.

Volleyball has been part of the Summer Olympics program for both men and women consistently since 1964.