Nyhellervatnet is a lake on the border of the municipalities of Hol (in Buskerud county) and Aurland (in Sogn og Fjordane county), Norway. The 16.74-square-kilometre (6.46 sq mi) lake sits at an elevation of 1,438 metres (4,718 ft) above sea level. The lake is located about 30 kilometres (19 mi) southeast of Aurlandsvangen, at the end of the valley Aurlandsdalen.