Owasco Lake
General data
- Name: Owasco Lake
- Water system: St. Lawrence River
- Water type: Natural lake
- Progression: Owasco River -> Seneca River (New York) -> Oswego River (New York) -> Lake Ontario -> St. Lawrence River -> Gulf of St. Lawrence -> Atlantic Ocean -> Planet Earth
- Climates: Continental
- Continents: North America
- Countries: United States of America
Owasco Lake is a Finger Lake in Cayuga County in central New York state, USA.
It is the third easternmost and sixth largest of the chain.