Laodicea on the Lycus (Greek: Λαοδίκεια πρὸς τοῦ Λύκου; Latin: Laodicea ad Lycum, also transliterated as Laodiceia or Laodikeia) (modern Turkish: Laodikeia) was an ancient city built on the river Lycus (Çürüksu). It was located in the Hellenistic regions of Caria and Lydia, which later became the Roman Province of Phrygia Pacatiana. It is now situated near the modern city of Denizli.