Grand Council of Treaty 3 (GCT3) is a political organization representing 24 First Nation communities across Treaty 3 areas of northern Ontario and southeastern Manitoba, Canada, and four additional First Nations, specifically in regard to their Treaty rights.
The GCT3 operates under the mandate in which their direction of the leadership and benefit/protection of the Citizens are carried out by the administrative office of GCT3 to protect, preserve and enhance Treaty and Aboriginal rights. These points are upheld by GCT3 by advancing the exercise of inherent jurisdiction, sovereignty, nation-building, and traditional governance with the aim to preserve and build the Anishinaabe Nation’s goal of self-determination.