The Chensagi River East is a tributary of the Chensagi River in Regional County Municipality (RCM) of Eeyou Istchee Baie-James (municipality), in the administrative region of Nord-du-Québec, in the Canadian province of Quebec, in Canada.

The East Chensagi River hydrographic slope is served by the secondary northbound road from Matagami passing at 4.5 kilometres (2.8 mi) West of the mouth of the East Chensagi River.

The surface of the river is usually frozen from early November to mid-May, however, safe ice circulation is generally from mid-November to mid-April.

The latter in turn flows southwesterly through the Max Passage into the Goéland Lake, which is crossed to the northwest by the Waswanipi River.

The mouth of the Chensagi River East is located at: The toponym "rivière Chensagi" was formalized on December 5, 1968, at the Commission de toponymie du Québec, i.e. at the creation of this commission[3] Download coordinates as: