Ochakiv is a small city in the Mykolaiv Oblast of southern Ukraine. Serving as the administrative center of the Ochakiv Raion, the city itself is also designated as a separate raion within the oblast, a city of regional importance. It is located on a peninsula in the Black Sea, at the entrance to the Dnieper Estuary, just opposite of Kinburn. For many years the city-fortress served as a capital of the Ottoman province.