Qoornoq (old spelling: Qôrnoq) is an uninhabited fishing village in the Sermersooq municipality in southwestern Greenland.

The area was known to have been inhabited by the ancient pre-Inuit, Paleo-Eskimo people of the Saqqaq culture as far back as 2200 BC.

The site was excavated in 1952 and the remains of an old Norse farm and ancient tools were discovered.

The railway was used in the 1950s, with a small diesel-hydraulic locomotive hauling flat wagons full of fish.

Qoornoq is located on the northeastern coast of the Qoornuup Qeqertarsua Island in the Nuup Kangerlua fjord, to the northeast of Nuuk, the capital of Greenland.