Atsonupuri (Russian: Атсонупури; Ainu: アトゥサヌプリ, Atusa-nupuri; Japanese: 阿登佐岳, Atosa-dake) is a stratovolcano located in the central part of Iturup Island, Kuril Islands, Russia.

| Atsonupuri | |
|---|---|
| Highest point | |
| Elevation | 1,206 m (3,957 ft)[1] |
| Listing | List of volcanoes in Russia |
| Coordinates | 44.808°N 147.131°E / 44.808; 147.131[1] |
| Geography | |
Atsonupuri Iturup, Kuril Islands, Russia | |
| Geology | |
| Mountain type | Stratovolcano |
| Last eruption | 1932[1] |
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