The World of Yesterday: Memoires of a European (German title Die Welt von Gestern: Erinnerungen eines Europäers) is the memoir of Austrian writer Stefan Zweig. It has been called the most famous book on the Habsburg Empire. He started writing it in 1934 when, anticipating Anschluss and Nazi persecution, he uprooted himself from Austria to England and later to Brazil. He posted the manuscript, typed by his second wife Lotte Altmann, to the publisher the day before they both committed suicide in February 1942. The book was first published in Stockholm (1942), as Die Welt von Gestern. It was first published in English in April 1943 by Viking Press. In 2011, Plunkett Lake Press reissued it in eBook form. In 2013, the University of Nebraska Press published a translation by the noted British translator Anthea Bell.

The book describes life in Vienna at the start of the 20th century with detailed anecdotes. It depicts the dying days of Austria-Hungary under Emperor Franz Joseph I of Austria, including the system of education and the sexual ethics prevalent at the time, the same that provided the backdrop to the emergence of psychoanalysis. Zweig also describes the stability of Viennese society after centuries of Habsburg rule.