Demirkapı is a neighborhood in Mut District, in Mersin Province, Türkiye. Demirkapı lies at 1,450 m above sea level, 3.7 km from the Western Taurus mountains. It has 44 inhabitants. The nearest city is Mut, 30 km to the south. Among the landmarks around are Alahan Monastery (17.7 km) and Tarḫuntašša (27 km). Among the natural features are Sertavul Pass (17.6 km).