Portneuf

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 community in Bannock County, Idaho
 * Portneuf River (Idaho), tributary of the Snake River
 * Portneuf Wildlife Management Area, Bannock County, near the town of McCammon