Kahn-e Hoseyn-e Pain (Persian: كهن حسين پايين, also Romanized as Kahn-e Ḩoseyn-e Pā’īn; also known as Kahn-e Ḩoseyn and Kahn-e Ḩoseynābād) is a village in Zaboli Rural District, in the Central District of Mehrestan County, Sistan and Baluchestan Province, Iran. At the 2006 census, its population was 265, in 57 families.