| Alluttoq Island | |
| Native Name: | Arveprinsen Ejland |
| Native Name Link: | Greenlandic language |
| Native Name Lang: | Greenlandic |
| Nickname: | --> |
| Image Map Caption: | Map of Alluttoq Island |
| Pushpin Map: | Greenland |
| Pushpin Label: | Alluttoq Island |
| Pushpin Map Caption: | Location of Alluttoq Island in Greenland |
| Coordinates: | 69.7417°N -51.1333°W |
| Location: | Baffin Bay |
| Area Km2: | 626 |
| Rank: | 13th largest in Greenland |
| Width M: | --> |
| Coastline M: | --> |
| Country: | Greenland |
| Country Admin Divisions Title: | Municipality |
| Country Admin Divisions: | Avannaata |
| Country Admin Divisions Title 1: | Abandoned settlement |
| Country Admin Divisions 1: | Ataa |
| Country Area M2: | or |
| Country Area Ha: | --> |
| Population: | 0 |
| Density Km2: | 0 |
| Ethnic Groups: | none |
Alluttoq Island (da|Arveprinsen Ejland) is a large 6551NaN1, uninhabited[1] island in Avannaata municipality in western Greenland, located in the northern part of Disko Bay, in the outlet of the Sullorsuaq Strait, east of Disko Island.[2]
Ataa, located on the eastern coast of the island, is an abandoned settlement, with the last families leaving the village around 1960. The closest populated settlements are Qeqertaq to the northeast, on an island off the Nuussuaq Peninsula, and Oqaatsut to the southeast, on the mainland.
Research indicates that megatsunamis generated by large landslides into Sullorsuaq Strait (known in Danish as Vaigat Strait) struck Alluttoq Island at least twice in prehistory. A wave that struck sometime around 5,650 BC had a run-up height of 41mto66mm (135feetto217feetm), and another that struck around 5,350 BC had a run-up height of 45mto70mm (148feetto230feetm).[3]