Nastassja Kinski (born Nastassja Nakszynski on January 24, 1961) is a German-born actress of Polish ancestry, and the daughter of the late Polish-German actor Klaus Kinski.

While still in her teens Kinski became a major star, notably and controversially performing a fully frontally nude scene at age 16 in To The Devil A Daughter. Also in her teens, she caused her then-friend Demi Moore to drop out of high school and likewise pursue a modelling career, which led to Moore's eventual fame.

Kinski's most notable screen roles include the title role of Tess (1979), (directed by Roman Polanski), Cat People (1982), Paris, Texas (1984), as Dudley Moore's love interest in Unfaithfully Yours (1984) and as Mathilde in À ton image (2004).

In the mid-1980's she cut back on her film career following the births of her son, Aljosha, and daughter, Sonja, (by an ex-husband with whom she was involved in many years of bitter custody disputes). In 1993 she had a daughter, Kenya Julia Jones, with composer/producer Quincy Jones.

She speaks German, English, French, Italian and Russian fluently.