Disko Island is a large island in Baffin Bay, off the west coast of Greenland. It has an area of 8,578 km2 (3,312 sq mi), making it the second largest of Greenland after the main island and one of the 100 largest islands in the world.

Qeqertarsuaq is a port and town in Qeqertalik municipality, located on the south coast of Disko Island on the west coast of Greenland. Founded in 1773, the town is now home to a campus of the University of Copenhagen known as Arctic Station. Qeqertarsuaq is the Kalaallisut name for Disko Island and is also now used for several other islands on Greenland, including those formerly known as Upernavik and Herbert Island. Qeqertarsuaq means 'the big island' in Kalaallisut.