Sailing at the 2020 Summer Olympics – Men's RS:X

The men's RS:X competition at the 2020 Summer Olympics was the men's windsurfer event and was held in Enoshima, Japan, from 25 July to 31 July 2021. 25 sailors from 25 nations competed in 13 races, including one medal-race where points were doubled. The land venue was Enoshima Yacht Harbour and races were held on Sagami Bay.

Medals were presented by IOC Member for Israel, Mr Alex Gilady and World Sailing President Li Quanhai.