Laodicea on the Lycus (Greek: Λαοδίκεια πρὸς τοῦ Λύκου; Latin: Laodicea ad Lycum, also transliterated as Laodiceia or Laodikeia, earlier known as Diospolis and Rhoas; modern Turkish: Laodikeia) was the ancient Hellenistic metropolis of Phrygia Pacatiana (also attributed to Caria and Lydia), built on the river Lycus (Çürüksu), in Anatolia near the modern village of Eskihisar (Eski Hissar), Denizli Province, Turkey.