Oki (隠岐郡; -gun) is a district located in Shimane, Japan.

As of 2003, the district has an estimated population of 24,500 and a density of 70.79 persons per km². The total area is 346.10 km².

The Oki District encompasses the Oki Islands, historically called Oki province.

Towns and villages

• Ama
• Chibu
• Nishinoshima
• Okinoshima — formed from the merger of Fuse, Goka, Saigo and Tsuma on October 1, 2004