UDC may refer to:

Politics

  • Central African Democratic Union (), a political party in the Central African Republic
  • Christian Democratic Union (Dominican Republic) (), a former political party in the Dominican Republic
  • Christian Democratic Union (Ecuador) (), political party in Ecuador
  • Democratic Union of Cameroon (), a political party in Cameroon
  • Democratic Union of Catalonia (), a political party in Spain
  • Nicaraguan Christian Democratic Union (), a political party in Nicaragua
  • Swiss People's Party (), a political party in Switzerland
  • Union of the Centre (1993), a former political party in Italy
  • Union of the Centre (2002), a political party in Italy
  • Union of Christian and Centre Democrats (), a political party in Italy
  • Union of Democratic Control, a British campaigning group set up to oppose the First World War
  • Union of the Right and Centre (), an electoral alliance in France
  • Umbrella for Democratic Change, a political party in Botswana

Government

  • Unified Development Code (also known as a Unified Development Ordinance), a local policy instrument that combines zoning regulations with other desired city regulations
  • Urban Development Corporation, a diversified public authority in New York State, United States
  • Urban district council, a former level of local authority in England and Wales
  • Urban district council, a former level of local authority in Ireland
  • Utah Department of Corrections, a government agency dedicated to the management and supervision of convicted felons in the State of Utah, United States
  • Uganda Development Corporation, an agency of the Government of Uganda, mandated to promote and facilitate the industrial and economic development of that country

Education

  • University of A Coruña (), a university in A Coruña, Spain
  • University of the District of Columbia, a university in Washington, D.C., United States
  • University Development Center, an educational-work co-operational program operated by GE Aviation in the United States

Computing

  • Utah Data Center, a large data center maintained by the National Security Agency, United States
  • Utility Data Center, a Hewlett-Packard product designed to help deploy virtualized resources

Other uses

  • UDC Finance, New Zealand finance company
  • UDC Homes, an American homebuilder
  • United Daughters of the Confederacy, neo-confederate non-profit based in the US
  • Universal Decimal Classification, a system of library classification derived from the Dewey Decimal Classification