2023 World Rowing Championships – Men's lightweight single sculls

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

Schedule
The schedule was as follows: All times are Central European Summer Time (UTC+2)

Heats
The four fastest boats in each heat advanced directly to the quarterfinals. The remaining boats were sent to the repechages.

Repechages
The two fastest boats in repechage advanced to the quarterfinals. The remaining boats were sent to the final E.

Quarterfinals
The three fastest boats in Quarterfinal advanced to the AB semifinals. The remaining boats were sent to the CD semifinals.

Semifinals C/D
The three fastest boats in each Semifinal advanced to the C final. The remaining boats were sent to the D final.

Semifinals A/B
The three fastest boats in each Semifinal advanced to the A final. The remaining boats were sent to the B final.

Finals
The A final determined the rankings for places 1 to 6. Additional rankings were determined in the other finals.