Kayaköy (Greek: Λεβισσι, Levissi or Greek: Καρμυλησσός, Karmylissos, although modern English usage seems to be Karmylassos) is a village 8 km south of Fethiye in southwestern Turkey where Anatolian Greek speaking Christians lived until approximately 1923. The ghost town, now preserved as a museum village, consists of hundreds of rundown but still mostly intact Greek-style houses and churches which cover a small mountainside and serve as a stopping place for tourists visiting Fethiye and nearby Ölüdeniz.

It was built on the site of the ancient city of Carmylessus in the 18th century. It experienced a renewal after nearby Fethiye (known as Makri) was devastated by an earthquake in 1856 and a major fire in 1885. After the Greco-Turkish War, Kayaköy was largely abandoned after a population exchange agreement was signed by the Turkish and Greek governments in 1923. Many of the buildings were damaged in the 1957 Fethiye earthquake.

Its population in 1900 was about 2,000, almost all Greek Christians; however, it is now empty except for tour groups and roadside vendors selling handmade goods and items scavenged from the former village. However, there are a selection of houses which have been restored, and are currently occupied.