Wilhelm Reich (March 24, 1897 – November 3, 1957) was an Austrian-American psychiatrist and psychoanalyst. In the 1920s he was a pupil of Sigmund Freud in Vienna and made important contributions to psychoanalysis ("Charakteranalyse" 1933; engl. 1945ff). His work was rediscovered by the activists of the sexual revolution of the 1960s and 1970s.