Saplı Islet (Turkish: Saplı Ada, meaning "Island with a handle", also called Boynuince Islet) is a Mediterranean tombolo of Turkey.

The island is at the Yenikaş coast which is located 4 kilometres (2.5 mi) west of Aydıncık ilçe (district) of Mersin Province.

At 36°07′48″N 33°17′41″E / 36.13000°N 33.29472°E / 36.13000; 33.29472 it forms the west wall of the bay named Soğuksu.

Its distance to Mersin is about 177 kilometres (110 mi) The surface area of the tombolo is about 17×103 square metres (1.8×105 sq ft).

Although currently there is no archaeological excavation on the islet, it is included in SİT areas in Turkey.