Hoseynabad-e Sadat (, also Romanized as ḨoseynÃÂbÃÂd-e SÃÂdÃÂt; also known as Hosein Abad Rostag and ḨoseynÃÂbÃÂd) is a village in Salehan Rural District, in the Central District of Khomeyn County, Markazi Province, Iran. At the 2006 census, its population was 40, in 11 families.