Dorothy Ruth Hoogstraten (February 28, 1960 – August 14, 1980), known professionally as Dorothy Stratten, was a Canadian model and actress, primarily known for her appearances as a Playboy Playmate. Stratten was the Playboy Playmate of the Month for August 1979 and Playmate of the Year in 1980, and appeared in three comedy films and in several episodes of television shows broadcast on American networks. Stratten was murdered shortly after co-starring in the movie They All Laughed, at the age of 20, by her estranged husband and manager Paul Snider, whom she was in the process of divorcing and breaking business ties with. Snider committed suicide after he killed Stratten.

Stratten's death inspired two movies, a book, and several songs: the TV movie Death of a Centerfold: The Dorothy Stratten Story (1981), the theatrical motion picture Star 80 (1983), the book The Killing of the Unicorn (1984), and songs such as "The Best Was Yet to Come" by Bryan Adams, and "Cover Girl" by Prism.