The Laser competition at the 2020 Summer Olympics was the men's one-person dinghy event and was held in Enoshima, Japan, from 25 July to 1 August 2021.

[1] 35 sailors from 35 nations competed in 11 races, including one medal-race where points were doubled.

[2][3] The land venue was Enoshima Yacht Harbour and races were held on Sagami Bay.

[1] Medals were presented by IOC Member for Cuba Mrs María Caridad Colón and World Sailing chief executive officer David Graham.

Scoring system: low-point system; Legend:   – Qualified for medal race(s); BFD – Black flag disqualification; DNF – Did not finish; DPI – Discretionary penalty imposed; OCS – On the course side of the starting line; RDG – Redress given; RET – Retired; UFD – "U" flag disqualification; † – Discarded race not counted in the overall result;