Qom is a city in the Central District of Qom County, Qom province, Iran, serving as capital of the province, the county, and the district. It is th…Qom is a city in the Central District of Qom County, Qom province, Iran, serving as capital of the province, the county, and the district. It is the seventh-largest metropolis and also the seventh-largest city in Iran. The city is 140 km to the south of Tehran, and on the banks of the Qom River.