The Karkuyeh Fire Temple or Karkouy Fire Temple () is a historic Fire Temple constructed during the Sasanian era located in historic region of Seistan, currently in Hirmand County, Sistan and Baluchestan province. This fire temple which was among Iran's major fire temples until the AH 7th/AD 13th century. According to History of Seistan, there is a poem related to this place, called Soroud-e Karkouy (fa) which is one of the oldest extant pieces of poetry in modern Persian language. It was finally destroyed and abandoned during Mongol invasions. Sources