Orthosia (Ancient Greek: Ὀρθωσία) was a town of ancient Caria, inhabited during Hellenistic, Roman, and Byzantine times.[1] It was not far from Alabanda, on the left bank of the Maeander River, and apparently on or near a hill of the same name.[2][3] Near this town the Rhodians gained a victory over the Carians.[4][5][6][7] It was the seat of a bishop from an early date,[8] and, while no longer a residential bishopric, it remains under the name Orthosias in Caria a titular see of the Roman Catholic Church.[9]
Its site is located near Yenipazar in Asiatic Turkey.[1][10]