The men's single sculls competition at the 2023 World Rowing Championships took place at Lake Sava, in Belgrade.

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

[2] The fastest boat in each repechage advanced to the AD quarterfinals.

[3] The three fastest boats in each heat advanced to the EF semifinals.

[4] The three fastest boats in each Quarterfinal advanced to the AB semifinals.