Hasankeyf (Northern Kurdish: Heskîf, Arabic: حصن كيفا‎, Greek: Κιφας, Latin: Cepha, from Syriac: ܚܨܢ ܟܐܦܐ Ḥéṣn Kayfa) is an ancient town and district located along the Tigris River in the Batman Province in southeastern Turkey. It was declared a natural conservation area by Turkey in 1981.