Khomeyni Shahr (, also
Romanized as
Khomeynī Shahr and
Khomeynīshahr; from the 1930s until 1979, known as
Homāyūnshahr (Persian: همایونشهر) and
Homayoon Shahr; known as
Sedeh - (Persian: سده) prior to the 1930s) is a city in and the capital of
Khomeyni Shahr County,
Isfahan Province,
Iran. At the 2006 census, its population was 218,737, in 57,551 families.