W.R.: Mysteries of the Organism is a 1971 film by Serbian director Dušan Makavejev that explores the relationship between communist politics and sexuality, as well as presenting the controversial life and work of Austrian-American psychoanalyst Wilhelm Reich (1897–1957). The film's narrative structure is unconventional, intermixing fictional and documentary elements.

Dušan Makavejev was a Serbian film director and screenwriter, famous for his groundbreaking films of Yugoslav cinema in the late 1960s and early 1970s—many of which belong to the Black Wave. Makavejev's most internationally successful film was the 1971 political satire W.R.: Mysteries of the Organism, which he both directed and wrote.