Lysvatnet is a lake that lies in the municipality of Meløy in Nordland county, Norway. The 4.53-square-kilometre (1.75 sq mi) is located near the border with Gildeskål Municipality, about 5.5 kilometres (3.4 mi) east of the municipal centre of Ørnes. The lake Markavatnet lies about 3 kilometres (1.9 mi) to the west of this lake.

• List of lakes in Norway