Islam Qala (Persian: اسلام قلعه Eslām Qalʿeh), also transliterated Eslam Qaleh, Eslam Qala or Islam Kala, also known as Kafar Qaleh, is a border town in the western Herat province of Afghanistan, near the border with Iran. It is the official port of entry from neighboring Taybad, Iran.
Islam Qala is part of the Kohsan District in Herat Province and is linked to the city of Herat via the Islam Qala-Herat Highway. Trade between Afghanistan and Iran passes through this town.
The town has a population of about 16,408. The Afghan Border Police (ABP) secures the border while the regular Afghan National Police are in charge of all other law enforcement activities. The Afghan military also has a small base at Islam Qala.
The town was the site of an important victory against the Persians. At 1818 the Afghan Vizier defeated the Persian invasion at the Battle of Kafir Qala.