The Kedgwick River is a tributary of the head of the Restigouche River, in New Brunswick, in Canada. It flows southeast in: * Quebec: in the unorganized territory of Lac-Huron, Quebec, in regional county municipality (MRC) Rimouski-Neigette, in the administrative region of Bas-Saint-Laurent; * New Brunswick: Saint-Quentin and Grimmer Parish, in Restigouche County.