Dedeağaç is a village in Tunceli District, in Tunceli Province, Türkiye. Dedeağaç lies at 1,357 m above sea level, in the Kosur Dağı mountains. It has 31 inhabitants. The nearest city is Tunceli, 7.8 km to the southeast. Among the landmarks around are Uzunçayır Dam (21 km) and Tunceli Museum (8.0 km).