The National Democratic Party could refer to

• Afar National Democratic Party
• National Democratic Party (Barbados)
• National Democratic Party (Djibouti)
• National Democratic Party (Egypt)
• National Democratic Party (Georgia)
• National Democratic Party (East Germany)
• National Democratic Party (Germany)
• National Democratic Party (Iraq)
• National Democratic Party (Latvia)
• National Democratic Party (Mongolia)
• National Democratic Party (Morocco)
• National Democratic Party (Nepal)
• National Democratic Party (Nigeria)
• National Democratic Party (Poland)
• National Democratic Party (Puerto Rico)
• National Democratic Party (Suriname)
• National Democratic Party (UK)
• National Democratic Party (United States) (Historic political party, not to be confused with the modern United States Democratic Party.)
• National Democratic Party (Venezuela)

See also: Democratic Party, National Party, List of political parties.