Julius Hans Weigel (29 May 1908, Vienna – 12 August 1991, Maria Enzersdorf) was an Austrian Jewish writer and a theater critic (till 1962). He lived in Vienna, except during the period between 1938 and 1945, when he lived in exile in Switzerland. He was a lifetime companion of the Austrian actress Elfriede Ott.
During the time before the Anschluss of Austria, i.e. the annexation by Nazi Germany in 1938, he worked at Viennese cabaret theaters. After his return from Switzerland, where he lived in exile (1938 – 1945), he wrote critical reviews about theater plays for the Austrian newspapers Kurier and Neues Österreich. Jointly with Friedrich Torberg he was responsible for the boycott in Austrian theaters of Bertolt Brecht whom he rejected because of Brecht's communist convictions.
Between 1951 and 1954, Hans Weigel edited the anthology Stimmen der Gegenwart (Voices from the Present), which fostered young writers. Today, his name is used by the Subsidy for Literature of Lower Austria. Weigel adapted comedies by Johann Nepomuk Nestroy and translated Molière. He collaborated with the annual Nestroy Theater Festival on Burg Liechtenstein, whose art director is Elfriede Ott. In 1974 he published an essay, which made him a well-known critic of the use of language.