Butterfly Valley is a valley in Fethiye district, Muğla Province, on the Mediterranean coast of Turkey. The valley is home to diverse butterfly species. Due to its natural beauty, Butterfly Valley is an important ecotourism attraction place in Turkey.
The valley is situated at the foothill of Babadağ, a 1,975-metre-high (6,480 ft) mountain nominated for preservation as world heritage. A wide-strip sand beach at a bay on the Turkish Riviera protrudes from the valley.
In the valley, various outdoor activities such as camping, hiking, canyoning, canoeing and scuba diving can be performed. The valley is open to public the entire year. During July and August, around 200 visitors camp daily in the valley.