Gregor von Rezzori (German pronunciation: [??'tso??i]; May 13, 1914 – April 23, 1998), born Gregor Arnulph Hilarius d'Arezzo, was an Austrian-born, Romanian, German-language novelist, memoirist, screenwriter and author of radio plays, as well as an actor, journalist, visual artist, art critic and art collector.
He was fluent in German, Romanian, Italian, Polish, Ukrainian, Yiddish, French, and English; during his life, von Rezzori was successively a citizen of Austria-Hungary, Romania, and the Soviet Union, before becoming a stateless person and spending his final years as a citizen of Austria.