Archduchess Margarethe Klementine Maria of Austria (in German: Margarethe Klementine Maria, Erzherzogin von Österreich; in Hungarian: Habsburg–Toscanai Margit Klementina Mária főhercegnő; 6 July 1870, Alcsút, Austria-Hungary– 2 May 1955, Regensburg) was a member of the Hungarian line of the House of Habsburg and an Archduchess of Austria by birth.

Margarethe Klementine was the third-eldest daughter and child of Archduke Joseph Karl of Austria and his wife Princess Clotilde of Saxe-Coburg and Gotha.

Through her father Joseph Karl, Margarethe Klementine was a great-granddaughter of Leopold II, Holy Roman Emperor.

Through her mother, she was a great-granddaughter of Louis-Philippe d'Orléans, King of the French.

Margarethe Klementine married Albert, 8th Prince of Thurn and Taxis,[1] younger son of Maximilian Anton Lamoral, Hereditary Prince of Thurn and Taxis and his wife Duchess Helene in Bavaria, on 15 July 1890 in Budapest, Austria-Hungary.