Dağdelen is a village in Durağan District, in Sinop Province, Türkiye. Dağdelen lies at 271 m above sea level, in the Küre mountains. It has 159 inhabitants. The nearest city is Boyabat, 12.7 km to the west. Among the landmarks around are Boyabat Dam (13.2 km), Dodurga Dam (9.5 km) and Boyabat Castle (14.3 km).