Sultandagi is a town located in the Afyonkarahisar Province within the Aegean region of Turkey. It serves as the administrative seat of the Sultandagi District, which recorded a total population of 13,779 according to the 2024 census.
The town is situated approximately 68 km from the city of Afyon on the road leading to Konya. Geographically, it lies near Lake Akşehir at the foothills of the Sultan Mountains (Sultandağ), positioned at a meeting point between the Aegean and central Anatolian geographical zones.