Mirza Abolhassan Khan Ilchi was an Iranian politician and diplomat who served as the Minister of Foreign Affairs twice, first from 1824 to 1834, and then again from 1838 until his death in 1845. He also served as the ambassador to Russia and Britain, and was the main Iranian delegate at the signing of the Golestan and Turkmenchay treaties with Russia in 1813 and 1828 respectively.

The Treaty of Gulistan was a peace treaty concluded between the Russian Empire and Qajar Iran on 24 October 1813 in the village of Gulistan as a result of the first full-scale Russo-Persian War. The peace negotiations were precipitated by the successful storming of Lankaran by General Pyotr Kotlyarevsky on 1 January 1813. It was the first of a series of treaties signed between Qajar Iran and Imperial Russia that forced Persia to cede the territories that formerly were part of Iran.