Aliagha Hasanov (Azerbaijani: Əliağa Həsənov; 1871–1933), also spelled as Ali Aga Hasanov, was an Azerbaijani statesman who served as Minister of Finance in the fourth cabinet of Azerbaijan Democratic Republic, and was member of Parliament of Azerbaijan.

As a wealthy businessman, he played an important role in construction of Şollar Water Channel, city sewage network and Baku Boulevard.

[3][4][5] During the third government in office, from 26 December 1918 to 14 March 1919, he served as Deputy Minister of Finance.

When the fourth government under Nasib Yusifbeyli was formed on 14 April 1919, Hasanov was appointed Minister of Finance.

After Bolshevik take over of Azerbaijan, Hasanov worked as the director of the Central Bank.