// Workers AI · dad joke modeWhat did DOI say to the duplicate? "You're a copy cat.

DOI or Doi most commonly refers to:

• Digital object identifier, an international standard for document identification
• United States Department of the Interior, an executive department of the U.S. government

It may also refer to:

Science and technology

• Distinctness of image, a quantification of vision used in optics
• 2,5-Dimethoxy-4-iodoamphetamine, a hallucinogenic drug

Organizations

• Department of Information (Australia), Australian government department, 1939–1950
• Division of Investigation, a precursor to the U.S. Federal Bureau of Investigation
• New York City Department of Investigation, law enforcement agency

Other uses

• Dancing on Ice, a British television series
• Doi (surname), a Japanese surname
• Doi (retailer), a Japanese company
• Doi (clan), a clan of the Gurjar ethnic group
• Dogri language (ISO 639 code), spoken in India and Pakistan
• Declaration of independence, a document to be independent from another country

See also

• All pages with titles beginning with DOI
• All pages with titles containing DOI