Isaac Deutscher

Isaac Deutscher
Born(1907-04-03)3 April 1907
Died19 August 1967(1967-08-19) (aged 60)
NationalityPolish
CitizenshipBritish (from 1949)
Occupation(s)Historian, biographer
Known forStudies in Soviet history; biographies of Leon Trotsky and Joseph Stalin
SpouseTamara Deutscher

Isaac Deutscher (Polish: Izaak Deutscher; 3 April 1907 – 19 August 1967) was a Polish Marxist writer, journalist and political activist who moved to the United Kingdom before the outbreak of World War II. He is best known as a biographer of Leon Trotsky and Joseph Stalin and as a commentator on Soviet affairs.

His scholarly biographies of Trotsky and Stalin have received widespread acclaim, with several reviewers ranking his three-volume Prophet trilogy among the greatest of political biographies; some criticism has been directed at his overly sympathetic tone for the subject matter. His three-volume biography of Trotsky was also highly influential among the British New Left in the 1960s and 1970s.