Çavdarhisar is a town located in the Kütahya Province within the Aegean region of Turkey. It serves as the administrative seat of the Çavdarhisar District and sits at an elevation of 1,026 meters (3,366 feet) above sea level.
As of 2022, the town has a population of 2,099 residents. A notable historical feature of the area is the Roman Penkalas Bridge, which still crosses the local Kocaçay stream.