Ali Khan Mansur (also known as Mansur ul-Mulk) (1886 – 8 December 1974) was a Prime Minister of Iran.
Born in Tehran, he served as Governor of Khorasan and Azarbaijan provinces, and was an ambassador to Italy, The Vatican, and Turkey.
He served twice as Prime Minister (from 1939 to 1941, and again in 1950) and six times as Cabinet Minister. He resigned as Prime Minister several days after August 25, 1941, when British and Soviet troops invaded Iran to suppress German activity.
Before World War II, Mansur was the Iranian Minister of Roads and Railway during construction of the Trans‐Iranian Railway. After World War II, Mansur was appointed Governor General of Azerbaijan in 1946 and was appointed ambassador to Turkey in 1953.
His son, Hassan Ali Mansur, served as Prime Minister from 1964 to 1965.
- 'Alí Rizā Awsatí (عليرضا اوسطى), Iran in the past three centuries (Irān dar Se Qarn-e Goz̲ashteh - ايران در سه قرن گذشته), Volumes 1 and 2 (Paktāb Publishing - انتشارات پاکتاب, Tehran, Iran, 2003). ISBN 964-93406-6-1 (Vol. 1), ISBN 964-93406-5-3 (Vol. 2).