or is a lake that lies in Meløy Municipality in Nordland county, Norway. It is located about southeast of the village of Glomfjord, on the northeast edge of the Svartisen glacier. Storglomvatnet is a reservoir that serves the Svartisen Hydroelectric Power Station. The lake is part of a large watershed system. The lake is regulated at a height of above sea level. This lake is also known as Grandma's lake to some locals.