Storuman is a lake in Sweden. The lake is 148 m deep, has an area of 171 square kilometres and is 351 m above sea level.
The Ume River flows through the lake and has a maximum depth of 148 m. At the southeastern end is the town of Storuman.
The lake consists of two clearly distinguishable parts. The approximately 30-kilometre long northwestern part is narrow and winding and is surrounded by 400–500-metre high, steep mountainsides. Here the lake is up to 112 m deep with a simultaneous width of 500 m. The southeastern part is up to 6 km wide with almost continuous shorelines. In this area, there are flat surroundings and protruding sandy headlands. In the southern part of the lake there is also the island of Luspholmen.
