Odanak is an Abenaki First Nations reserve in the Central Quebec region, Quebec, Canada. The mostly First Nations population as of the Canada 2021 Census was 481. The territory is located near the mouth of the Saint-François River at its confluence with the St. Lawrence River. It is partly within the limits of Pierreville and across the river from Saint-François-du-Lac. Odanak is an Abenaki word meaning "in the village".

The Abenaki are Indigenous people of the Northeastern Woodlands of Canada and the United States. They are an Algonquian-speaking people and part of the Wabanaki Confederacy. The Eastern Abenaki language was predominantly spoken in Maine, while the Western Abenaki language was spoken in Quebec, Vermont, and New Hampshire.