| Mount Kupreanof | |
| Elevation M: | 1895 |
| Listing: | List of volcanoes in the United States |
| Location: | Lake and Peninsula Borough, Alaska, United States |
| Coordinates: | 56.11°N -159.797°W |
| Type: | Stratovolcano |
| Volcanic Arc/Belt: | Aleutian Arc |
| Last Eruption: | March 1987 |
Mount Kupreanof is a stratovolcano on the Alaska Peninsula, United States. It is the largest and the northeasternmost in a group of five volcanoes opposite from Stepovak Bay. Mount Kupreanof displays extremely strong fumarole activity and its latest eruption in 1987 produced minor steam and ash emission.[1] This is the only known historical eruption from Mount Kupreanof.