Qaqortoq is a town in southwestern Greenland. With a population of 3,100, it is South Greenland's most populous town. The name is western Greenlandic and means "[the] white [one]". Qaqortoq is the seat of the Municipality of Qaqortoq which, apart from the town itself, includes three small settlements. Qaqortoq was founded by Norwegian trader Anders Olsen in 1775. Near Qaqortoq are the Hvalsey ruins, the most prominent Norse ruins in Greenland.