Bihud (Persian: بيهود, also Romanized as Bīhūd) is a village in, and the administrative center of Pishkuh Rural District, in the Central District of Qaen County, South Khorasan Province, Iran. At the 2006 census, its population was 1,461, in 497 families. The village is located 50 kilometers away from the west of Qaen.