Yang Sze (; born 3 July 1946 in Guangzhou), better known as Bolo Yeung, is a former competitive bodybuilder and a martial arts filmactor. Primarily cast as the villain in the movies in which he stars, he is best known for his performances as Bolo in Enter the Dragon, as Chong Li in Bloodsport, and for his numerous appearances and long-spanning career in the martial arts filmography for Hong Kong's motion picture industry.