Mediha Sultan (Ottoman Turkish: مدیحه سطان; "the praised one"; 30 July 1856 – 9 November 1928) was an Ottoman princess, the daughter of Sultan Abdulmejid I and Gülistü Kadin. She was the full sister of Sultan Mehmed VI and the half-sister of the Sultans Murad V, Abdul Hamid II and Mehmed V.