Portneuf may refer to: Canada Portneuf Regional County Municipality, Quebec Portneuf, Quebec, a town in the Portneuf Regional County Municipality Portneuf (provincial electoral district), in Quebec Portneuf—Jacques-Cartier, a federal electoral district in Quebec, formerly known as Portneuf Portneuf-sur-Mer, Quebec, a town in the La Haute-Côte-Nord RCM, Quebec Saint-Léonard-de-Portneuf, Quebec, a municipality United States Portneuf, Idaho, unincorporated communitiy in Bannock County, Idaho Portneuf River (Idaho), tributary of the Snake River Portneuf Wildlife Management Area, Bannock County, near the town of McCammon