Hakim Iranshah ibn Abi al-Khayr (Persian: حکیم ایرانشاه بن ابی الخیر), commonly known as Iranshah (ایرانشاه; or Iranshan), was a Persian poet who lived in the Seljuk Empire in the 11th and 12th centuries. The Kush-nama was written between 1108–1111, and is referred to as Qessa-ye Kush-e Pil-Dandan ("the tale of Kush the Tusked") and Akhbar-e Kush-e Pil-Dandan ("accounts of Kush the Tusked") in the Mujmal al-tavarikh. Also mythological in nature, it tells the story of Kush the Tusked (or Pil-gush, "The Elephant-eared"), the son of Kush (brother of the evil king Zahhak).