Devlethan is a village in Hocalar District, in Afyonkarahisar Province, Türkiye. Devlethan lies at 1,063 m above sea level, 1.2 km from the Mount Ahır mountains. It has 682 inhabitants. The nearest city is Sandıklı, 29 km to the east. Among the landmarks around are Acmonia (19.7 km), Eukarpia (15.6 km) and Beycesultan (41 km).