The women's lightweight single sculls competition at the 2017 World Rowing Championships in Sarasota took place in Nathan Benderson Park.

[1] The schedule was as follows:[1] All times are Eastern Daylight Time (UTC-4) The three fastest boats in each heat advanced directly to the A/B semifinals.

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

[4][5] The A final determined the rankings for places 1 to 6.

Additional rankings were determined in the other finals.