Tasiusaq is a settlement in the Kujalleq municipality in southern Greenland, founded in 1933.

[3] In the Greenlandic language, the name of the settlement means "like a lake", referring to the lake-looking bay it's situated on.

Fairly well trodden hiking trails[6] lead north and west from the town,[7] but for any motorized transportation terrain vehicles are needed.

The settlement lies in a strait connecting the Disko Fjord with the Tasiusaq Bay.

Further, the nature reserve of Qinngua Valley at nearby Tasersuaq Lake is considered the place with the only natural forest in Greenland; while the forest is only a few acres in size, the sub-arctic willow and birch trees that usually only reach a height of a few centimeters can reach a height of several meters in the valley.