The ZEC du Lac-Brébeuf is a "zone d'exploitation contrôlée" (controlled harvesting zone) (ZEC) of 434 sqkm , located partly in the unorganized territory Lalemant, in the MRC Le Fjord-du-Saguenay Regional County Municipality and also in the MRC Charlevoix-Est Regional County Municipality, in the administrative region of Saguenay-Lac-Saint-Jean, in Quebec, in Canada.