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.