ID or its variants may refer to:
Identity document, a document used to verify a person's identity
Identifier, a symbol which uniquely identifies an object or record
== People ==
I. D. Ffraid (1814–1875), Welsh poet and Calvinistic Methodist minister
I. D. McMaster (1923–2004), American assistant district attorney
I. D. Serebryakov (1917–1998), Russian lexicographer and translator
== Places ==
İd or Narman, a town in Turkey
Idaho, US (postal abbreviation ID)
Indonesia, ISO 3166-1 alpha-2 country code "ID"
Indonesian language, ISO 639-1 language code "ID"
== Arts, entertainment, and media ==
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