Saint-Vianney is a municipality in the Canadian province of Quebec, located in La Matapédia Regional Council Municipality. It was known as Saint-Jean-Baptiste-Vianney until 1988.

La Matapédia is a regional county municipality in eastern Quebec, Canada at the base of the Gaspé peninsula, in the Bas-Saint-Laurent region. Its seat is in Amqui. It is named after the Matapédia Rive