The Métabetchouane East river is a tributary of the northeast shore of the Métabetchouane River, flowing in the Laurentides Wildlife Reserve, in the unorganized territory of Lac-Jacques-Cartier, in the La Côte-de-Beaupré Regional County Municipality, in the administrative region of Capitale-Nationale, in the province from Quebec, to Canada.

The main watersheds neighboring the Métabetchouane Est river are: The Métabetchouane Est River takes its source at the mouth of "Lac des Hautes des Terres" (length: 1.1 km (0.68 mi); altitude: 819 m (2,687 ft)).

Enclosed between mountains, this lake is linked on the north side by a small stream with the "Lac de la Hauteur" which turns out to be the head lake of the rivière aux Écorces du Milieu.

From its source, the course of the Métabetchouane East river descends on 54 km (34 mi), with a drop of 375 m (1,230 ft), according to the following segments: Upper course of the Métabetchouane East River (from its source) (segment of 18.4 km (11.4 mi)) Intermediate course of the Métabetchouane East river (segment of 19.3 km (12.0 mi)) Lower course of the Métabetchouane Est river (segment of 16.3 km (10.1 mi)) From the confluence of the Métabetchouane East river, the current descends the Métabetchouane North River on 131.5 km (81.7 mi) to the south shore of lac Saint-Jean; from there, the current crosses the latter on 22.8 km (14.2 mi) towards the northeast, then borrows the course of the Saguenay River via La Petite Landfill on 172.3 km (107.1 mi) until Tadoussac where it merges with the Saint Lawrence estuary.

The toponym “Rivière Métabetchouane Est” was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.