Malayer (Persian: ملاير, also Romanized as Malāyer; formerly Dowlatabad (Persian: دَولَت آباد), also Romanized as Dowlatābād and Daūlatābād) is a city in and capital of Malayer County, Hamadan Province, Iran. At the 2006 census, its population was 153,748, in 40,750 families.