UDI may refer to:

Organisations

  • Independent Democratic Union (Unión Demócrata Independiente), a political party in Chile
  • Union of Democrats and Independents, a political party in France
  • United Defense Industries, a supplier of land warfare systems, now part of BAE Systems Land and Armaments
  • United Diving Instructors, a diver training organization

Technology

  • Uniform Driver Interface, a project to develop portable device drivers
  • Unified Display Interface, digital video interface specification based on DVI
  • Universal Disk Image, a disk image format
  • Unique Device Identification, a system that is intended to assign a unique identifier - the Unique Device Identifier - to medical devices within the United States, Europe, China, South Korea, Saudi Arabia and Taiwan
  • Unrestricted Digital Information, a type of Circuit Switched Data Bearer Capability service commonly used with GSM cellular networks

Other uses

  • Unilateral declaration of independence, an assertion of the independence of an aspiring state or states
  • Rhodesia's Unilateral Declaration of Independence, in November 1965
  • Mexican unidad de inversión, Mexican currency funds unit
  • Universal design for instruction, an educational framework

See also

  • Udi (disambiguation)