'Assistant of the Realm'), (July 13, 1856 – 26 December 1927) was an Iranian politician who served as Regent, Prime and Finance Minister of Iran during the Qajar dynasty.

Because he failed to ask Mohammed Ali Shah for his permission before resigning, the latter had him arrested.

He did not return to Iran until after the fall of Mohammed Ali Shah in the summer of 1909 where he was installed as Regent for the infant Ahmad Shah Qajar and assumed the office of prime minister once again for a short time.

In a deep political character analysis of Al-Molk, the American treasurer-general of Persia William Morgan Shuster suggested that he showed a lack of strong leadership in his office.

In 1919, he made another political appearance as an advisor to Lord Curzon in the drafting of the Anglo-Persian Agreement of August 1919.