Qeqertarsuaq, meaning 'The Large Island' in the Greenlandic language (Danish: Storø meaning 'big island' as well), is an uninhabited island in the Sermersooq municipality in southwestern Greenland.

Qeqertarsuaq is one of three mountainous islands located in the middle run[1] of the 160 km (99.4 mi) long[2] Nuup Kangerlua fjord, to the north of Nuuk, the capital of Greenland.

Its highest mountain is 1,616 metres (5,302 ft) high,[3] meaning it is an ultra prominent mountain.

The two sibling islands are Qoornuup Qeqertarsua Island and Sermitsiaq Island.

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