Storglomvatnet is a lake that lies in the municipality of Meløy in Nordland county, Norway. It is located about 10 kilometres (6.2 mi) 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 460 to 585 metres (1,509 to 1,919 ft) above sea level. This lake is also known as Grandma's lake to some locals.

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  Map of Storglomvatnet watershed
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  Storglomvassdammen is one of the two big dams that create Storglomvatnet; the other one being Holmvassdammen.
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  The snow-covered dam in June 2015

• List of lakes in Norway
• Svartisen Hydroelectric Power Station