Lee Sung-kyung (born 10 August 1990), is a South Korean actress and model.

Lee began her entertainment career as a model where she competed at the local Super Model Contest in 2008. Lee made her acting debut as the first actress from YG Entertainment and model company K-Plus strategic partnership in the SBS drama "It's Okay, That's Love". She acted in the television dramas Cheese in the Trap and The Doctors before taking her first leading role as the titular character in Weightlifting Fairy Kim Bok Joo.