Why Freud Was Wrong: Sin, Science and Psychoanalysis is a book by Richard Webster, in which the author provides a critique of Sigmund Freud and psychoanalysis, and attempts to develop his own theory of human nature. Webster argues that Freud became a kind of Messiah and that psychoanalysis is a pseudoscience and a disguised continuation of the Judaeo-Christian tradition. Webster endorses Gilbert Ryle's arguments against mentalist philosophies in The Concept of Mind (1949), and criticizes many other authors for their treatment of Freud and psychoanalysis.

Richard Webster was a British author. His five published books deal with subjects such as the controversy over Salman Rushdie's novel The Satanic Verses (1988), Sigmund Freud and psychoanalysis, and the investigation of sexual abuse in Britain. Born in Newington, Kent, Webster studied English literature at the University of East Anglia and lived in Oxford, England. He became interested in the problem of false allegations partly due to reading the work of historian Norman Cohn.