Rapid Lake (French: Lac-Rapide, pronounced [lak ʁapid]) is a First Nation reserve on the western shore of Cabonga Reservoir in the Outaouais region of Quebec, Canada.

In recent years, the community has been troubled by poor living conditions, financial difficulties, governance disputes, school closure, and protests.

Despite these lands being reserved for use by the Algonquins, they continued to regularly visit the site at Barrière Lake about 30 kilometres (19 mi) north because of their historic ties to it.

[5][6] In 1995, because of a leadership dispute, some families left the reserve and settled on Jean-Peré Lake, not far to the south, also in La Vérendrye Park.

[3] On October 6, 2008, seventy-five members of the Barrière Lake Algonquins set up a roadblock on Highway 117, demanding that the federal and provincial governments honour a resource-sharing agreement signed twenty years earlier.