Lee Se Young is a South Korean actress managed by Prain TPC. She began her career as a child actress, starring in various movies and dramas such as Jewel in the Palace (2003), When I Turned Nine (2004), Lovely Rivals (2004) and The Wonder Years (2007).

Lee gained increased popularity after starring in the 2016 family series"The Gentlemen of Wolgyesu Tailor Shop", for which she won the "Best New Actress" award in the television category at the Baeksang Arts Award for her performance and Best Couple with her co-star Hyun Woo as were named as the “Achoo Couple” by fans.