Tahtalı Dağı, also known as Lycian Olympus, is a mountain near Kemer, a seaside resort on the Turkish Riviera in Antalya Province, Turkey. It was known as Olympus (; also transliterated as Olympos) and Phoenicus or Phoinikous () in ancient times. It is part of the Beydağları Coastal National Park. Visitors can ascend the summit with the Olympos Aerial Tram. The Lycian Way long distance trail traverses the mountain.