ID

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

• Identity document, any document used to verify a person's identity
• Identifier, a symbol which uniquely identifies an object or record

Places

• İd, a town in Turkey
• Idaho, US (postal abbreviation ID)
• Indonesia, ISO 3166-1 alpha-2 country code "ID"

Arts, entertainment, and media

Music

Albums

• I.D. (album), a 1989 album by The Wailers Band
• Id (Siddharta album), 1999
• [id] (Veil of Maya album), 2010
• ID, an album by Anna Maria Jopek

Songs

• ID (song), a 2015 single by Kygo
• I.D., a 2004 song by Kasabian from their self-titled album

Periodicals

• I.D. (magazine), an American magazine focusing on Architecture, Graphic and Industrial Design
• i-D, a British fashion magazine
• Ideas and Discoveries (i.D.) a magazine covering science, with heavy interest in social science

Television

• "I.D." (Law & Order), an episode of Law & Order
• Investigation Discovery, an American cable television channel

Other uses in arts, entertainment, and media

• I.D. (play), 2003 British play by Anthony Sher
• Id (comics), a manhwa by Kim Daewoo, art by A. T. Kenny'
• Id, a fictional kingdom in The Wizard of Id, an American comic strip
• Initial D, a racing manga series by Shuichi Shigeno

Brands and enterprises

• Citroën ID, a variant of the Citroën DS car
• iD Mobile, a telephone network owned by Carphone Warehouse
• Interlink Airlines (IATA airline code ID)
• Volkswagen I.D. series, a series of concept cars that have been promoted into production
  • Volkswagen I.D., the first concept car in the series

Finance

• International dollar, common name for the Geary–Khamis dollar, a hypothetical unit of currency
• Invoice discounting, a form of short-term borrowing for businesses

Politics

• Inclusive Democracy, a project that aims for direct, economic, social, and ecological democracy
• Independent Democrats, a political party in South Africa

Science, technology, and mathematics

Biology and medicine

• Ide (fish), also spelled Id
• Infectious disease
• Infectious dose
• Intellectual disability

Computing

• Id (programming language), a parallel functional programming language
• iD (software), editor for OpenStreetMap geodata
• Id (Unix) command returns group and user identification
• .id, Internet Top Level Domain code for Indonesia
• id, the generic object datatype in the Objective-C programming language
• Instruction decoder, a decoder in CPUs
• Internet Draft, a working document of the IETF

Design and engineering

• Industrial design
• Information design
• Inside diameter, also 'inner diameter' or 'I.D.'; a dimension commonly used to specify the size of tubing or pipe
• Interaction design
• Interior design
• Instructional design, the study of creating better instructional experiences

Mathematics

• Identity function, a function that always returns the same value that was used as its argument
• Influence diagram, a graphical and mathematical representation of a decision situation

Psychology

• Id, one of the tri-part psychic apparatus defined in Sigmund Freud's structural model of the psyche
• Id, one of the parts of the psychic apparatus, in socionics

Other uses

• ID (classification), a Paralympic rowing classification
• Id., Latin, short for idem (translation: "the same"), used in legal citations for the previously cited
• Independent Democrats, a political party in South Africa
• Indonesian language (ISO 639-1 code "id")
• Intelligent design, a religious argument for the existence of God

See also

• 1D (disambiguation)
• lD (disambiguation)
• Identification (disambiguation)