Gülistü Kadin, called also Gülüstü Kadin, Gülistu Hanim or Gülüstu Hanim (Turkish pronunciation: [ɟylysˈty]; Ottoman Turkish: کلستو خانم; "garden rose"; born Princess Fatma Chachba; 1830 - c. 1861) was a consort of Sultan Abdulmejid I, and the mother of Sultan Mehmed VI, the last Sultan of the Ottoman Empire.

Born as Fatma Chachba,[1] Gülistü Kadin was a member of an Abkhazian princely family.

[1][3] She was a relative of Kelesh Ahmed-Bey Shervashidze, head of state of the Principality of Abkhazia.

On 26 February 1855 She give birth two twins daughters, Zekiye and Fehime Sultan.

On 30 July 1856, she gave birth to her third child, a daughter, Mediha Sultan.