Eslamshahr (Persian: اسلامشهر)[a] is a city in the Central District of Eslamshahr County, Tehran province, Iran, serving as capital of both the county and the district.

At the time of the 2006 National Census, the city's population was 357,171 in 91,293 households.

Its neighborhoods are Vavan, Ghaemieh, Saeedieh, Mohamadieh, Mahdieh, Baghenarde, Saloor, Noori, Ghasemabad, Shirudi, Golha, Elahiye, Ahmadabad, Ghods, Baghqfeiz, Zarafshan, Moosiabad, Anbia and Mianabad.

Eslamshahr has a cold semi-arid climate (Köppen BSk).

Media related to Eslamshahr at Wikimedia Commons Iran portal