Mirza Abolhassan Khan Ilchi ( Persian : میرزا ابوالحسن خان ایلچی ; 1776 – 1845) also called Abolhassan Khan Shirazi Ilchi Kabir or Abu'l Hassan Khan 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.