Lake Bästeträsk

Infobox lake
lake_name = Bäste träsk
image_lake =
caption_lake =
image_bathymetry =
caption_bathymetry =
location = Gotland
coords = coord|57|54|N|18|55|E|type:waterbody_region:SE|display=inline,title
type =
inflow =
outflow =
catchment =
basin_countries = Sweden
length =
width =
area = 6.3 km²
depth = 4.5 m
max-depth = 6 m
volume =
residence_time =
shore =
elevation =
islands =
cities =
frozen = winter

The Lake Bästeträsk (also: "Bäste träsk") is on the island of Gotland, which belongs to Sweden. The lake lies in the north of the island, approximately 12 km east of Fårösund.

With an area of 6.3 km² this is the biggest lake on the island, and it is connected to the Baltic Sea with a 250 m long outlet.

The lake is known for its large numbers of rainbow trout and sea trout. In winter the lake is sometimes used for ice skating.

Location Map|Sweden|label=Bäste träsk|lat=57.54|long=18.55|position=left|width=210|caption=position of Bäste träsk|float=left