National Socialist Party most often refers to the National Socialist German Workers' Party (German: Nationalsozialistische Deutsche Arbeiterpartei, NSDAP), commonly known as the Nazi Party, which existed in Germany between 1920 and 1945 and ruled the country from 1933 to 1945. However, similar names have also been used by a number of other political parties around the world, with various ideologies, some related and some unrelated to the NSDAP.
National Socialist Party may also refer to: