Shahriar (Persian: شهريار, also Romanized as Shahrīār, Shahreyār, and Shahriyār; also known as ‘Alī Shāh ‘Avaẕ and Ali Shāh ‘Iwaz) is a city in and the capital of Shahriar County, Tehran Province, Iran. At the 2006 census, its population was 189,120, in 51,814 families.