Langfossen is a waterfall located in Etne Municipality in Vestland county, Norway.

The waterfall is located about 5 kilometres (3.1 mi) southwest of the village of Fjæra.

European route E134 runs along the base of the waterfall, making access very easy.

[1] In March 2011 CNN/Budget Travel sat Langfossen as one of the worlds ten most beautiful waterfalls.

The waterfall is one of the few in Norway that has not been used in hydroelectric power generation, so it is still in its natural state.