Little Limestone Lake is a lake located in Little Limestone Lake Provincial Park in northern Manitoba, Canada, about 500 km (310 mi) north of Winnipeg, and 65 km (40 mi) north of the town of Grand Rapids, Manitoba. It is located in the 4,095-hectare (10,120-acre) Little Limestone Lake Park Reserve, an example of karst geology, in the Manitoba Lowlands. The eastern shore is within the traditional territory of the Mosakahiken Cree Nation. Little Limestone Lake Park Reserve is an IUCN (World Conservation Union) protected area.