Maggie Cheung Man yuk (born 20 September 1964) is a Chinese actress from Hong Kong. Raised in England and Hong Kong, she has over 70 films to her credit since starting her career in 1983. Some of her most commercially successful work was in the action genre, but Cheung once said in an interview that of all the work she has done, the films that really meant something to her are Song of Exile, Centre Stage, Comrades: Almost a Love Story and In the Mood for Love. As Emily Wang in Clean, her last starring role to date, she became the first Asian actress to win a prize at the Cannes Film Festival. Cheung is multilingual, having learned to speak English, Mandarin and French. Her native language is Cantonese.

She married French director Olivier Assayas in 1998. The pair divorced in 2001 but their relationship remained amicable. In 2004, Cheung made her award-winning film Clean with him. As part of her portrayal of the drug-addicted aspiring singer Emily Wang in Clean, Cheung performed songs written by David Roback of Mazzy Star.

She had a relationship with Hong Kong film director Derek Yee in the 1980s.