Ali İhsan Su (born 25 June 1959) is a Turkish bureaucrat who has served as the governor of Diyarbakır since May 2022, having been appointed by President Recep Tayyip Erdoğan on the recommendation of the Turkish Government.

He previously served as the 8th governor of Düzce from 2013 to 2015, having been appointed by former president Abdullah Gül.

Born in 1959 in Konya, Su was educated at Istanbul University Faculty of Political Science and graduated in 1985.

He began working at the Central Administration as a Kaymakam candidate.

[1] In 2013, he was appointed as the 8th Governor of Düzce after President Abdullah Gül approved his nomination by the Turkish Government.