Hong Chau is an American actress. She has received several award nominations for her film roles as Ngoc Lan Tran in Downsizing (2017) and as Liz, a nurse, in The Whale (2022), including one for the Academy Award for Best Supporting Actress for the latter.

The Whale is a 2022 American drama film directed by Darren Aronofsky and written by Samuel D. Hunter, based on his 2012 play of the same name. The film stars Brendan Fraser, Sadie Sink, Hong Chau, Ty Simpkins, and Samantha Morton. The plot follows a reclusive, morbidly obese instructor of the English language who tries to restore his relationship with his teenage daughter, whom he had abandoned eight years earlier. The film was shot from March 8 to April 7, 2021, in Newburgh, New York.