Sturgeon Lake is a lake in the Kenora and Thunder Bay districts in northwestern Ontario, Canada. The lake has many bays and arms, and is drained by the Sturgeon River. It has a shallow V shape, with one arm beginning near O'Briens Landing and extending 35 km (22 mi) north-east to Sturgeon Lake Narrows at the vertex of the "V", and the second arm continuing from there another 24 km (15 mi) north to a point 6.5 km (4.0 mi)south of Savant Lake.