The Porc-Épic River is a tributary of the Malbaie River, flowing into the unorganized territory of Lac-Pikauba, in Charlevoix Regional County Municipality, in the Capitale-Nationale administrative region, in the province of Quebec, in Canada.

Most of the Porc-Épic River flows into the territory of the Zec des Martres, except for the last 1.6 km (0.99 mi) before reaching its mouth.

The hydrographic slope of the Porc-Épic River is served mainly by a secondary forest road that goes up this valley for forestry and recreational tourism purposes.

The surface of the Porc-Épic River is usually frozen from early December to late March, however, safe ice movement is generally from mid-December to mid-March.

The toponym "Porc-Épic River" was formalized on December 5, 1968, at the Bank of Place Names of the Commission de toponymie du Quebec.