Kamouraska—Rivière-du-Loup (French pronunciation: [kamuʁaska ʁivjɛʁ dy lu]) was a federal electoral district in Quebec, Canada, that was represented in the House of Commons of Canada from 1979 to 1997.

It was abolished in 1996, and redistributed between Kamouraska—Rivière-du-Loup—Témiscouata—Les Basques and Bellechasse—Etchemins—Montmagny—L'Islet ridings.

Kamouraska—Rivière-du-Loup consisted of the City of Rivière-du-Loup; the Towns of La Pocatière, Pohénégamook, Saint-Pascal and Trois-Pistoles; the Counties of Kamouraska and Rivière-du-Loup; and the parish municipality of Sainte-Louise and the municipality of Saint-Roch-des-Aulnets in the County of L'Islet.

In 1987, the riding was redefined to consist of the towns of La Pocatière, Pohénégamook, Rivière-du-Loup, Saint-Pascal and Trois-Pistoles; the counties of Kamouraska and Rivière-du-Loup; the Parish Municipality of Sainte-Louise and the Municipality of Saint-Roch-des-Aulnaies in the County of L'Islet; and the parish municipalities of Saint-Mathieu-de-Rioux and Saint-Simon; the municipalities of Saint-Guy and Saint-Médard; the Territory of Rimouski-Lac-Boisbouscache portion in the County of Rimouski.

This riding elected the following members of Parliament: