Xanthos (Lycian: Arñna, Greek: Ξάνθος, Latin: Xanthus, Turkish: Ksantos) was the name of a city in ancient Lycia, the site of present day Kınık, Antalya Province, Turkey, and of the river on which the city is situated. The ruins of Xanthus are on the south slopes of a hill, the ancient acropolis, located on the northern outskirts of the modern city, on the left bank of the Xanthus, which flows beneath the hill.