Pidasa (Ancient Greek: Πίδασα) or Pedasa (Πήδασα) was a town of ancient Caria. During the Ionian Revolt, the Persians suffered a defeat at Pidasa. It was once the chief seat of the Leleges. It was a polis (city-state) and a member of the Delian League. In the time of Strabo the town had ceased to exist, and the name of the district, Pedasis (Πηδασίς), was the only remaining memorial of the place. As Herodotus assigns to Pedasa a portion of the territory of Miletus, it is clear that the town must have been situated between Miletus, Halicarnassus, and Stratoniceia.
Its site is located near Cert Osman Kale, Asiatic Turkey, which is consistent with Herodotus' account.
This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Pedasa". Dictionary of Greek and Roman Geography. London: John Murray.
Coordinates: 37°24′04″N 27°34′20″E / 37.401041°N 27.57211°E