The Sulaiman Mountains (; Balochi/Urdu/), or Koh-e Sulayman, are the southern extension of the Hindu Kush mountain system, located in the Zabul, Kandahar and Loya Paktia regions of Afghanistan, and in the southern Federally Administered Tribal Areas (South Waziristan and Frontier Region Dera Ismail Khan), most of northern Balochistan, and some of southwestern Punjab and Khyber Pakhtunkhwa in Pakistan. The Sulaimans form the eastern edge of the Iranian Plateau where the Indus River separates it from the Subcontinent. Bordering the Sulaimans to the north are the arid highlands of Central Hindu Kush or Paropamisadae, whose heights extend up to .