Dovhyi Island is a small sandy island in Ochakiv Raion, Mykolaiv Oblast in Ukraine.

The island along with Kruhlyi island serves as a separation of Yahorlyk Bay from Black Sea located at the western part of the bay.

It is located to the south from Kinburn peninsula.

Dovhyi island is 6 km (3.7 mi) in length and about 1 km (0.62 mi) in width.

This article about a location in Mykolaiv Oblast is a stub.