Ismat al-Doulah

 'Ismat al-Doulah (, 1855 – 1905), sometimes spelled 'Esmat ed-Dowleh, and also known as Fatimah Khanum (Persian: فاطمه خانم), was a daughter of shah Naser al-Din Shah Qajar of Persia (r. 1848–1896) and royal consort Taj al-Dawlah.

She married Dost Mohammad Khan Muir al-Mamalek.