Chow Yun-fat, SBS (born 18 May 1955), previously known as Donald Chow, is a Hong Kong actor. He is best known in Asia for his collaborations with filmmaker John Woo in the action heroic bloodshed-genre films A Better Tomorrow, The Killer and Hard Boiled; and in the West for his roles as Li Mu-bai in Crouching Tiger, Hidden Dragon and Sao Feng in Pirates of the Caribbean: At World's End. He mainly plays in dramatic films and has won three Hong Kong Film Awards for Best Actor and two Golden Horse Awards for Best Actor in Taiwan.

In 2014, Chow was the second-highest earning actor in Hong Kong, earning HK$170 million (US$21.9 million).