UID

UID may refer to:

• Unique identifier and instances or systems thereof
  • PubMed 'Unique Identifier' parameter (PMID) designating specific scientific publication abstracts (PubMed § PubMed identifier)
  • 'Unique Item Identifier', a specific value in the IUID (Item Unique Identification) system used by the United States Department of Defense for the identification of accountable equipment according to DoD Instruction 5000.64
  • Aadhaar number, originally the Unique Identification Number, an initiative of the Unique Identification Authority of India (UIDAI) of the Indian government to create a unique ID for every Indian resident
  • UID, acronym for the VAT identification number in the German language (VAT = value-added tax)
  • uID Center, a nonprofit organization in Tokyo, Japan, responsible for the Ucode system for uniquely identifying real-world objects electronically
• Ulster Institute for the Deaf
• Umeå Institute of Design
• Unitedworld Institute of Design, college in India
• Universal Instructional Design, an educational method that tries to deliver teaching to meet the needs of wide variety of learners.
• Unintelligent Design, a satirical reaction to the Intelligent Design movement
• Unidentified decedent, a deceased person whose body has not yet been identified

Computing

• A unique identifier
  • Unique identifier for a specific user of a computer system
  • Unique ID for the Mifare series of chips (integrated circuits) used in contactless smart cards and proximity cards.
  • Unique ID of a message in a folder on an IMAP server
  • See also Globally unique identifier (GUID)
  • See also Universally unique identifier (UUID)
• User identifier (Unix), a code identifying each user on a Unix and Unix-like systems
• User interface design, device design with the focus on the user's experience and interaction
• 'Unit IDentification light', a light found on all HP/Compaq DL servers that allows users to distinguish which server they are working on in a server rack
• Unit Identification, an LED used as a means of locating a specific computer server in a server room