Limestone Lake is a lake in Northern Manitoba, Canada. It is in the Hudson Bay drainage basin and is the source of the Limestone River.
There are two named bays on the lake: Kinoseeti Bay at the east; and Sakawisew Bay, from which the Limestone River flows, at the north.
The closest access point is Little Churchill River/Dunlop's Fly In Lodge Aerodrome, to the west on Waskaiowaka Lake.