Yağbasan is a village in Durağan District, in Sinop Province, Türkiye. Yağbasan lies at 206 m above sea level, in the Küre mountains. It has 214 inhabitants. The nearest city is Vezirköprü, 16.3 km to the southeast. Among the landmarks around are Nerik (9.8 km) and Vezirköprü Dam (12.9 km).