Hundålvatnet is a lake that lies in the municipality of Vefsn in Nordland county, Norway. The 7.96-square-kilometre (3.07 sq mi) lake lies in the western part of the municipality, about 12 kilometres (7.5 mi) west of the town of Mosjøen. It is located just north of the Lomsdal–Visten National Park. The lake flows into the Hundåla river which flows north into the Vefsnfjorden.

• List of lakes in Norway
• Geography of Norway