The men's lightweight single sculls competition at the 2022 World Rowing Championships took place at the Račice regatta venue.

[1] The schedule was as follows:[1] All times are Central European Summer Time (UTC+2) The four fastest boats in each heat advanced directly to the AD quarterfinals.

The two fastest boats in repechage advanced to the quarterfinals.

[3] The three fastest boats in each quarter advanced to the A/B semifinals.

[5] The three fastest boats in each semi advanced to the A final.