Lac de l'Hongrin

Infobox lake
lake_name = Lac de l'Hongrin
image_lake = Lac et barrage hongrin gc.jpg
caption_lake =
image_bathymetry =
caption_bathymetry =
location = Vaud
coords = coord|46|25|29|N|7|2|54|E|type:waterbody_region:CH-VD|display=inline,title
type = reservoir
inflow = Hongrin
outflow = Hongrin
catchment = 45.6 km²
basin_countries = Switzerland
length =
width =
area = 1.60 km²
depth =
max-depth = 105 m
volume =
residence_time =
shore =
elevation = 1,255 m
islands =
cities =
frozen =

Lac de l'Hongrin is a lake in Vaud, Switzerland. The reservoir with a surface area of 1.60 km² is located in the municipalities of Château-d'Œx and Ormont-Dessous. The two arch dams Hongrin Nord and Hongrin Sud were completed in 1969.