Mir-Fatah-Aga Seid of Tabriz (?-1892), was an Iranian religious and political figure, leader of Shiah sect and a Mushtaidi (Muslim theologian, member of the highest spiritual circle of Shiah faith) of Tabriz. He was Azebaijani by descent. In the wake of Russian-Iranian war of 1828, the government of Russian Tsar presented Mir-Fatah-Aga with 50 dessiatina (1 dessiatina = 2.7 acres) of plot in Tbilisi, on the left bank of the Mtkvari River. Mir-Fatah-Aga moved to Tbilisi and settled there. In Tbilisi, he was known by the name of Mushtaidi. There he married a Georgian woman Nino. After her death, in her memory, he laid out a big park on the donated plot, constructed an irrigation channel and equipped the entire territory with amenities. People used to call the place the Mushtaidi Park. The Mushtaidi Garden became the most vivid spot of the city. In the middle of the 19th century, the city treasury purchased the park and built there a restaurant and a summer theater.
In 1845 Mushtaidi returned to Iran. He died in Tabriz.