Uogys is a river of Telšiai County and Šiauliai County, northern Lithuania. It flows for 30 kilometres and has a basin area of 85 km2.
It is a left-bank tributary of the Venta River.
See also Avižlys, another left-bank tributary of the Venta which runs close by and almost parallel
References
LIETUVOS RESPUBLIKOS UPIŲ IR TVENKINIŲ KLASIFIKATORIUS (Republic of Lithuania- River and Pond Classifications) . Ministry of Environment (Lithuania). Accessed 2011-11-11.