Arg e Ali-Shah also known as Arg e Tabriz, is a remnant of a fortress built in the Il-Khanid period, in Tabriz, in Iran.

The structure, was initially used as a mosque in its early days, but during the Qajar era was used as a military post, and storage facility for weapons. It also played an important role in the Constitutionalist war of Iran in the early 1900s against Mohammad Ali Shah of the Qajar dynasty.

The structure today stands 28 meters high, and is still used as part of a space for holding friday prayers in Tabriz.