Dedemli is a neighborhood in Hassa District, in Hatay Province, Türkiye. Dedemli lies at 674 m above sea level, in the Nur mountains. It has 477 inhabitants. The nearest city is Dörtyol, 22 km to the west. Near the border: Syria, 14 km. Among the landmarks around are Issus (28 km), Yesemek Quarry and Sculpture Workshop (26 km) and Samʾal (37 km).