Greater Isfahan metropolitan area is a metropolitan region in Isfahan province, central Iran.

[citation needed] This region, although not having any official designation and recognition yet, is the second biggest one in Iran, behind the capital city Tehran (Greater Tehran).

The overall region has a population of over 4,900,000 with an area of 4500 km2 and extends along Zayandeh Rud, the main river axis through the province, and also along the northern-southern axis of the city, plus a western axis towards Lorestan province.

The region is also home to important military installations and centres, including nuclear facilities and airbases.

Isfahan and Suburbs Urban Railway Organization Lenjan County Mass Transit Organization Kashan and Suburbs Bus Organization Isfahan and Suburbs Bus Company Khomeynishahr and Suburbs Bus Organization Shahreza Bus Company Falavarjan County Municipalities Mass Transit Organization Shahinshahr and Suburbs Bus Organization Mobarakeh and Suburbs Bus Organization Najafabad and Suburbs Bus Organization Baharestan City Public Transit Organization Borkhar County Mass Transit Organization