杜邦特湖是加拿大的湖泊，位于该国北部，由努纳武特基瓦里奇地区负责管辖，面积3,629平方公里，是该地区第二大湖泊，岛屿面积204平方公里，海拔高度236米。

Dubawnt Lake is a lake in Kivalliq Region, Nunavut, Canada. It is 3,630 km (1,400 sq mi) in size and has several islands. It is about 200 miles north of the point where Manitoba, Saskatchewan and Nunavut come together, about 300 miles west of Hudson Bay and about 250 miles south of the arctic circle. To the northwest is the Thelon Wildlife Sanctuary. Its main inlet and outlet is the north-flowing Dubawnt River which joins the Thelon River at Beverly Lake (Nunavut). The Thelon flows east to Hudson Bay at Chesterfield Inlet. It is on the line of contact between the Sayisi Dene band of Eastern Caribou-Eater Chipewyan people and the Harvaqtuurmiut and Ihalmiut bands of Caribou Inuit. The first European to reach the lake was Samuel Hearne in 1770, but it remained largely unknown to outsiders until it was explored by Joseph Tyrrell in 1893. There are no permanent settlements but there are fly-in fish camps where large lake trout can be caught during the 2-month ice-free season.