The National Fascist Party (Partito Nazionale Fascista; PNF) was an Italian party, created by Benito Mussolini as the political expression of Fascism (previously represented by groups known as Fasci; see also Italian fascism). The party ruled Italy from 1922 to 1943 under a totalitarian system.

It is currently the only party whose reformation is explicitly banned by the Constitution of Italy: "it shall be forbidden to reorganize, under any form whatever, the dissolved fascist party" ("Transitory and Final Provisions", Disposition XII).