Lee Ha-sung (Korean: 이하성; RR: ihasseong; born 6 June 1994) is a wushu taolu athlete from South Korea.

On his international debut, Lee won the first gold medal for South Korea at the 2014 Asian Games in the men's changquan event.

[2][3][4] He then competed at the 2015 World Wushu Championships where he won a gold medal in the compulsory changquan event.

[5] Two years later at the 2017 World Wushu Championships, Lee was a double silver medalist in jianshu and duilian.

[6] At the 2018 Asian Games, Lee had a major deduction on one of his difficulty movements and finished in 12th place in the men's changquan event, thus was unable to defend his 2014 title.