Hamlagrøvatnet is a lake on the border of the municipalities of Voss and Kvam in Vestland county, Norway.

The lake is located about 17 kilometres (11 mi) southeast of the village of Dalekvam and about 10 kilometres (6.2 mi) south of the village of Evanger.

The lake sits at the eastern end of the Bergsdalen valley and it is regulated at elevation of 588 to 560 metres (1,929 to 1,837 ft) above sea level.

The lake is a reservoir on the river Bergsdalselvi which has four hydroelectric power stations on it.

This Vestland location article is a stub.