Joséphine Pauline de Talleyrand-Périgord (29 December 1820, Paris - 1890), by her marriage marquise de Castellane, was a French noblewoman.
The third legitimate child of the duke and duchess of Dino, Dorothea von Biron and her husband Edmond de Talleyrand-Périgord, she is often thought to have in fact been fathered by Charles-Maurice de Talleyrand-Périgord, prince of Bénévent. She grew up in his hôtel particulier on rue Saint-Florentin, was nicknamed "angel of the house" and "my dear Minette" by him, and held a great affection for him throughout her life.
In 1839, she married Henri de Castellane, eldest son of the marshal de Castellane. Widowed in 1847, she spent the rest of her life at the château de Rochecotte (Indre-et-Loire), which she was given by her mother. A great friend of Félix Dupanloup, bishop of Orléans, she lived a simple and devout life.