Chan Wui-Ngai (born 6 February 1953; often credited as Billy Chan) is a Hong Kong actor, stuntman, director, fight choreographer, and film producer. Chan won the 1983 Hong Kong Film Award for Best Action Choreography along with Sammo Hung, Lam Ching-ying and Xia Ling-zhen (Yuen Biao) for his work in The Prodigal Son. In later years, Chan won several more choreography awards.