Trần Thị Thanh Nhàn (born 19 July 1982), better known as Lý Nhã Kỳ is a Vietnamese actress, model and businesswoman. She is known for portraying Diem Kieu in VTV's series Kiều nữ và đại gia (The Beauty and the Wealthy). Since 2011, she has been serving as the Tourism ambassador of Vietnam. She was also ambassador for Operation Smile in Vietnam.