Leslie Kwok Ying Wah (born 12 November 1973) is a Singaporean former swimmer, who specialized in sprint freestyle events and later turned into an actor, entrepreneur, and a part-time professional model. He earned three bronze medals each in the 50 m freestyle from the Southeast Asian Games, and later represented Singapore at the 2000 Summer Olympics. Kwok is also an Anglo-Chinese School alumnus, and later a graduate with a bachelor of science degree in civil and structural engineering at Nanyang Technological University.