The Gaspésie (official name), or Gaspé Peninsula, the Gaspé or Gaspesia, is a peninsula along the south shore of the Saint Lawrence River to the east of the Matapédia Valley in Quebec, Canada, that extends into the Gulf of Saint Lawrence. It is separated from New Brunswick on its southern side by the Baie des Chaleurs (Chaleur Bay) and the Restigouche River.