Budi Lake

Infobox_lake
lake_name = Budi Lake
Lago Budi
image_lake = Lago budi nasa.jpg
caption_lake =
image_bathymetry =
caption_bathymetry =
coords = coord|38|53|S|73|17|W|type:waterbody_region:CL|display=inline,title
type =
inflow = Estero Comoe, Estero Boyeco
outflow = Budi River
catchment =
basin_countries = Chile
basin_population =
length =
width =
area = 56.2 km²
depth =
max-depth = 10.5 m
volume =
residence_time =
shore = around 105 km
elevation = 2 meters
islands =
cities = Puerto Saavedra, Puerto Domínguez

The Budi Lake ( _es. Lago Budi from the mapudungun word "Füzi" which means salt) is located near the coast of Araucanía Region, southern Chile. The lake is part of the boundaries between Saavedra and Teodoro Schmidt comune.

Budi Lake is among the few lakes of the West coast of the Americas that have seasonal inflows of sea water. Another difference to many Chilean lakes is that Budi Lake is not of glacial origin and does not lies in the Andes mountains. Budi Lake is above a coastal plain just south of Nahuelbuta Range and north of the Valdivian Coastal Range where the Chilean Coast Range is heavily eroded.

According to the census of 2002, the zone around the lake is one the poorest parts of Araucanía Region, Chile's poorest region in turn. The 13,275 persons who live around the lake form 3,087 families with 30 years as average age. 40% of the population is under 18 years old and 73,2% declares to be Mapuches.