Upper Dumbell Lake is a lake in Qikiqtaaluk Region, Nunavut. It is the northernmost named lake of Canada. It is located 5.2 km (3.2 mi) southwest of Alert, Canada's northernmost settlement, on the coast of Lincoln Sea, Arctic Ocean. The lake is roughly circular and 1 km (0.62 mi) in diameter.

Upper Dumbell Lake
Upper Dumbell Lake is located in Nunavut
Upper Dumbell Lake
Upper Dumbell Lake
LocationEllesmere Island, Nunavut
Coordinates82°28′N 062°30′W / 82.467°N 62.500°W / 82.467; -62.500 (Upper Dumbell Lake)
Basin countriesCanada
Max. length1 km (0.62 mi)
Max. width1 km (0.62 mi)
SettlementsAlert, Nunavut