Masjed Soleyman (Persian: مسجدسليمان, Lurish: مسسلیموو Mas-seleymoo; also Romanized as Masjed Soleymān, Masjed-e Soleymān, Masjed Soleiman, and Masjid-i-Sulaiman) is a city in and the capital of Masjed Soleyman County, Khuzestan Province, Iran. At the 2006 census, its population was 206,121, in 51,530 families. Masjed Soleiman is a historical city which is located among the Zagros Mountains
Masjed Soleyman was inhabited by various clans of Bakhtiari tribes but oil exploration in this area attracted other people from other parts of Bakhtiari zones to this city for trade or jobs.
Masjed Soleiman's most interesting parish is Tembi, and historical and ancient site is Sarmasjed Temple in the northeast. Sarmasjed temple is on the verge of Sarmasjed terrace, in ancient time fire had been continuously flaming inside it. And according to historians was the capital of Achaemenian Reign. Among other Masjed Soleiman ancient relics, we can suggest the ancient Temple of Bard-e-Neshande.