Lovatnet (also Loenvatnet) is a lake in the municipality of Stryn in Vestland county, Norway. It is located about 2 kilometres (1.2 mi) southeast of the village of Loen and about 6 kilometres (3.7 mi) east of the village of Olden. The lake lies just 2 kilometres (1.2 mi) southwest of the mountain Skåla. The water from the lake flows down from the mountains; especially from the Jostedalsbreen and Tindefjellbreen glaciers. It then flows out through the Loelva river into the Nordfjorden.
Water from the tiered horsetail waterfall Ramnefjellsfossen with a total height of 818m flows into the lake from a short distance away, by some criteria among the highest dozen waterfalls in the world. It is fed by meltwater from the glacier Ramnefjellbreen, an arm of the Jostedalsbreen glacier.
Landslides into the lake from the mountain Ramnefjellet caused two major tsunamis in 1905 and 1936, killing 64 and 71 people respectively, and resulting in the depopulation of the area.