Democratic Union may refer to:
Croatian Democratic Union Croatian Democratic Union of Bosnia and Herzegovina Mongolian Democratic Union Democratic Union of Alto Adige Democratic Union (Argentina) Democratic Union (Bosnia and Herzegovina) Democratic Union (Czech Republic) Democratic Union (Germany) Democratic Union (Greece) Democratic Union (Guatemala) Democratic Union (Israel) Democratic Union (Italy) Democratic Union (Morocco) Democratic Union (North Macedonia) Democratic Union (Poland) Democratic Union (Russia) Democratic Union (Slovakia) Democratic Union (Ukraine)
See also People's Democratic Union (disambiguation) Democratic Alliance (disambiguation) Democratic Party (disambiguation)