National Party or Nationalist Party may mean:

• National Party of Australia
• Nationalist Party of Australia
• Bangladesh Nationalist Party
• National Party (Bangladesh)
• National Party (Manju), Bangladesh
• National Party (Naziur), Bangladesh
• National Party (Bohemia)
• British National Party
• Cornish Nationalist Party, Britain
• National Party (UK, 1917) (defunct)
• National Party (UK, 1976) (defunct)
• National Party of Canada (defunct)
• Parti national (Québec; defunct)
• Parti nationaliste du Québec (defunct)
• Kuomintang, Republic of China
• New National Party (Grenada)
• National Party (Honduras)
• Nationalist Party (Iceland)
• Nationalist Congress Party, India
• Manx National Party, Isle of Man
• Nationalist Party (Ireland)
• People's National Party, Jamaica
• Kyrgyz National Party, Kyrgyzstan
• Basotho National Party, Lesotho
• Progressive National Party, Lesotho
• Sarawak National Party, Malaysia
• Nationalist Party, Malta
• New Zealand National Party
• Awami National Party, Pakistan
• Baluch National Party (Mengal), Pakistan
• Baluch National Party (Awami), Pakistan
• Pakistan National Party
• National Party (Papua New Guinea)
• Nacionalista Party (Philippines)
• Stronnictwo Narodowe (historic), Poland
• Samoa National Party
• Scottish National Party
• Seychelles National Party
• Slovak National Party
• Slovene National Party
• National Party (Solomon Islands)
• National Party (South Africa) (defunct)
• New National Party (South Africa) (defunct)
• Grand National Party, South Korea
• EAJ/PNV Basque Nationalist Party, Spain
• United National Party, Sri Lanka
• National Party of Suriname
• Thai Nation Party
• National Party (Uruguay)
• Plaid Cymru, Wales
• National Party (Zambia)