|Catchment area||259 km2 (100 sq mi)|
|Surface area||52.8 km2 (20.4 sq mi)|
|Average depth||2 m (6.6 ft)|
|Max. depth||7.5 m (25 ft)|
|Shore length1||33.4 km (20.8 mi)|
|Surface elevation||129.8 m (426 ft)|
|1 Shore length is not a well-defined measure.|
Lake Osveya or Lake Osveyskoye (Belarusian: Асвейскае возера or Асьвейскае возера; Russian: озеро Осве́я or Осве́йское озеро) is a large freshwater lake in the Vitebsk Region, northern Belarus, near the borders with Latvia and Russia. It has an area of 52.8 km2 (20 sq mi), making it the second largest lake in the country. The Republic of Belarus's most extreme northern point is situated only a few degrees further north of the lake.
- "Main characteristics of the largest lakes of Belarus". Land of Ancestors. Data of the Research Laboratory for Lake Study of the Belarus State University. 2011. Retrieved 29 September 2013.
- Lake Osveyskoye Belarus National Tourism Agency
- "Coordinates of the extreme points of the state frontier". Land of Ancestors. 2012. Retrieved 30 August 2013.
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