Heddalsvatnet

Heddalsvatnet () is a lake in Notodden Municipality and Midt-Telemark Municipality in Telemark county, Norway. The lake is located just south of the town of Notodden. The village of Heddal and the Heddalen valley are located to the northwest of the lake.

==Geography== The main rivers that flow into the lake are the rivers Tinnelva and Heddøla. The catchment basin covers a total area of . The southern part of the lake is called Bråfjorden and is separated from the northern part by the Nautsundet strait which is crossed by the county road 360 bridge. The railway line to Notodden (the Bratsberg Line) runs along the eastern shore. The villages of Heddal and Yli lie along the northwestern short of the lake and the villages of Hjuksebø and Hjuksevelta lie along the eastern shore of the lake.