Illizi (Arabic: إيليزي‎) is a town and commune, coextensive with Illizi District, situated in the south-eastern part of Algeria, and capital of Illizi Province. According to the 2008 census it is the largest commune by population in the province, with a population of 17,252, up from 10,163 in 1998, and an annual population growth rate of 5.5%, the highest in the province.