Archduchess Rosa Maria Antonie Roberta Josepha Anna Walburga Carmela Ignazia Rita de Cascia of Austria, full German name: Rosa Maria Antonie Roberta Josepha Anna Walburga Carmela Ignazia Rita de Cascia, Erzherzogin von Österreich (22 September 1906, Parsch, Salzburg, Salzburg, Austria–Hungary – 17 September 1983, Friedrichshafen, Baden-Württemberg, Germany) was a member of the Tuscan branch of the House of Habsburg-Lorraine and an Archduchess of Austria and Princess of Bohemia, Hungary, and Tuscany by birth.
Through her marriage to Philipp Albrecht, Duke of Württemberg, Rosa was also a member of the House of Württemberg and Duchess consort of Württemberg.