Nipissing First Nation, meaning place of little waters, is a long-standing community of Nishnaabeg peoples, who traditionally speak Anishinaabemwin, located along the shorelines of Lake Nipissing in northern Ontario. They are referred to by many names in European historical records, since the colonists often adopted names given to them by other nations.

Lake Nipissing is a lake in the Canadian province of Ontario. It has a surface area of 873.3 km2 (337.2 sq mi), a mean elevation of 196 m (643 ft) above sea level, and is located between the Ottawa River and Georgian Bay. Lake Nipissing is the third-largest lake entirely in Ontario. It is relatively shallow for a large lake, with an average depth of only 4.5 m (15 ft). The shallowness of the lake makes for many sandbars along the lake's irregular shoreline. The lake reaches a maximum depth of 64 m (210 ft) near the mouth of the French River, off the shore of Blueberry Island. The lake has many islands most of which are protected under the Protection of Significant Wetlands scheme, controlled by the Ministry of Natural Resources and Forestry.