Archduchess Renate of Austria (2 January 1888 – 9 December 1935) was a daughter of Archduke Charles Stephen of Austria and a first cousin of King Alphonso XIII of Spain. A member of the Teschen branch of the House of Habsburg-Lorraine and an Archduchess of Austria and Princess of Bohemia, Hungary, and Tuscany by birth, she renounced her titles in 1909 upon her marriage to Prince Jerome Radziwiłł.

Archduchess Renate was a daughter of Archduke Charles Stephen of Austria and his wife, Archduchess Maria Theresa of Austria, Princess of Tuscany. Both of her parents were closely related to Emperor Franz Joseph. Renata’s father was a grand son of archduke Karl of Austria who had led the Austrian army against Napoleon Bonaparte. Her father was a brother of Queen Maria Christina of Spain. Renate’s mother, Archduchess Maria Theresa of Austria, Princess of Tuscany was a granddaughter of Leopold II, the last reigning Grand Duke of Tuscany. On her mother's side, she was also a granddaughter of King Ferdinand II of the Two Sicilies.

Archduchess Renate was educated by private tutors with a special emphasis on languages. She learned German, Italian, English French and from 1895 Polish. Her father had followed a career in the Austrian Navy and Renate spent her formative years primarily in Istria in the then Austrian port of Pula on the Adriatic. Her father was very wealthy and the family had a winter residence in the island of Losinj in the Adriatic, a palace in Vienna and in 1895 her father inherited from Archduke Albert vast properties in Galicia. From 1907 the family main residence was in Żywiec Castle in western Galicia.

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