National Party or Nationalist Party may refer to:

• National Party of Australia, commonly known as The Nationals
• Bangladesh:
  • Bangladesh Nationalist Party
  • Jatiya Party (Ershad) a.k.a. National Party (Ershad)
• California National Party
• Nationalist Party of Canada
• Kuomintang or Chinese Nationalist Party, in Mainland China (1919–1949) and Taiwan (since 1949)
• National Party (Denmark)
• National Party (Ireland)
• National Party of Honduras
• Hong Kong National Party
• Homeland Party (Libya) or Libyan National Party
• Basotho National Party, in Lesotho
• Nationalist Party (Malta)
• Frisian National Party, in the Netherlands
• New Zealand National Party
• Pakistan:
  • Awami National Party
  • Balochistan National Party (Mengal)
  • National Party (Pakistan)
  • Kalat State National Party
• National Party (Papua New Guinea)
• Nacionalista Party, in the Philippines
• Plaid Genedlaethol Cymru or The National Party of Wales
• Scottish National Party
• Seychelles National Party
• Slovak National Party
• Slovenian National Party
• National Party (Solomon Islands)
• National Party South Africa
• Basque Nationalist Party, in Spain
• National Party of Suriname
• Nationalist Movement Party, in Turkey
• British National Party
• National Party (Uruguay)
• Việt Nam Quốc Dân Đảng or Vietnamese Nationalist Party (founded 1927, in exile since 1975)
• National Party (Zambia)

• Australia:
  • Nationalist Party of Australia (1917–1931)
  • National Party (South Australia) (1917–1923)
• National Party (Belize)
• Nationalist Party (Bolivia)
• Burma:
  • Nationalist Party (Burma) (1920s)
  • Nationalist Party (1930s)
• Canada:
  • National Party of Canada
  • National Party of Canada (1979)
  • Parti National (Quebec)
  • Parti nationaliste du Québec
• Chile:
  • National Party (Chile, 1857) (1857–1933)
  • National Party (Chile, 1966) (1966–94)
• National Party (Colombia)
• Czech Republic:
  • National Party (1848-1918), known as Old Czech Party
  • National Party (Czech Republic)
• Breton National Party, in France
• Liberal Party of Gibraltar (founded 1991 as Gibraltar National Party)
• Grenada:
  • The National Party
  • Grenada National Party
• Nationalist Party (Iceland)
• Ireland:
  • Nationalist Party (Ireland)
  • National Party (Ireland, 1924)
  • Catholic Democrats (Ireland) (1995)
• Isle of Man:
  • National Party (Isle of Man)
  • Manx National Party (1977–1981)
• National Party (Japan)
• Malaysia:
  • Sarawak National Party
  • Parti Negara
• Nationalist Party (Peru)
• Poland:
  • National Party (Poland)
  • National Party (Poland, 1989)
  • National Party "Fatherland"
• Puerto Rican Nationalist Party
• National Party (Romania)
• West Indies National Party, in Saint Vincent and the Grenadines
• Solomon Islands Liberal Party a.k.a. Nationalist Party
• South Africa:
  • National Party (South Africa) (1914–1997)
  • New National Party (South Africa) (1997–2005)
• National Party (Sweden)
• National Party (Syria)
• Thai Nation Party
• United Kingdom:
  • British National Party (1960)
  • Cornish Nationalist Party
  • English National Party
  • National Party (UK, 1917)
  • National Party (UK, 1976)
  • Nationalist Party (Northern Ireland)
  • National Party of Scotland
  • National Party of Europe
  • Vectis National Party
• National Party (United States)