From Wikipedia, the free encyclopedia
Jump to: navigation, search

ID, Id, id or I.D. may refer to:

Common meanings[edit]

  • Identity document, any document used to verify a person's identity
  • Identifier, a symbol which uniquely identifies an object or record
  • The id, one of the psychic apparatus defined in Sigmund Freud's structural model of the psyche

Fields of study[edit]

Computer science[edit]

Medicine and psychology[edit]


  • ID, postal abbreviation for Idaho, a state in the Pacific Northwest region of the U.S.
  • Indonesia, ISO 3166-1 alpha-2 country code "ID"
    • .id, Internet Top Level Domain code for Indonesia
  • İd, a town in Turkey

Popular culture[edit]


Film and television[edit]


  • Id (comics), a manhwa by Kim Daewoo, art by A. T. Kenny
  • I.D. (magazine), American magazine focusing on Architecture, Graphic and Industrial Design
  • i-D, a British fashion magazine
  • the fictional kingdom of The Wizard of Id, an American comic strip

Video games[edit]



  • Influence diagram, a graphical and mathematical representation of a decision situation
  • Inside diameter, also 'inner diameter'; a dimension commonly used to specify the size of tubing or pipe
  • An identity function, a function that always returns the same value that was used as its argument


Other uses[edit]

See also[edit]