Izadkhast (Persian: ايزدخواست, also Romanized as Īzadkhvāst and Īzad Khvast; also known as Īzad Khast, Yazd-e Khāst, Yazd-e Khvāst, and Yezd-i-Khast; also known as Samīrum) is a city in the Central District of Abadeh County, Fars province, Iran, and serves as the administrative center for Izadkhast Rural District. It is the first city in Fars on the Isfahan-Shiraz Highway.

At the 2006 census, its population was 7,366 in 1,803 households. The following census in 2011 counted 6,532 people in 1,920 households. The latest census in 2016 showed a population of 5,910 people in 1,834 households.

The Complex of Izadkhast is located in the Fars Province of Iran, roughly 135 km south of Isfahan. The complex consists of Izad-Khast Castle, a caravanserai, and a Safavid-period bridge. The castle structure is of particular interest due to the different architectural styles incorporated into the construction of the building, including Sassanid and Qajar periods. The architecture of the castle is unique to Izadkhast, and only comparisons in building materials can be made to other sites in the region.