Hoseynabad (, also Romanized as ḨoseynÃÂbÃÂd and Hosein Abad; also known as ḨoseynÃÂbÃÂd-e BaghdÃÂdë) is a village in Masumiyeh Rural District, in the Central District of Arak County, Markazi Province, Iran. At the 2006 census, its population was 176, in 47 families.