Sakhalin Gulf (Russian: Сахалинский залив) is a gulf in the Sea of Okhotsk between continental Russia (north of Amur's mouth) and northern tip of the Sakhalin Island. The width of the gulf reaches up to 160 km. It is covered with ice from November until June.
The port of Moskalvo (Москальво) is located on the eastern shore of the Sakhalin Gulf, close to Ush Island.
The Chastyye Islands are located in the midst of the gulf.