GDI may refer to:

Science and technology

  • Gasoline direct injection, a type of fuel injection
  • Graphics Device Interface, a component of Microsoft Windows
  • Guanosine nucleotide dissociation inhibitor, a protein

Organisations

  • Gabriel Dumont Institute, in Saskatchewan, Canada
  • Gardner Denver, an American manufacturing company
  • Gay Doctors Ireland, a professional organisation
  • GDI Integrated Facility Services, a Canadian janitorial service
  • Geena Davis Institute on Gender in Media, an American nonprofit
  • Girl Develop It, an American educational charity
  • Global Disinformation Index, a UK think tank
  • Gottlieb Duttweiler Institute, a Swiss think tank
  • Gulf Drilling International, a Qatari oil and gas company
  • General Directorate of Intelligence, the intelligence agency and secret police of the Islamic Emirate of Afghanistan (Taliban)

Other uses

  • Baka language (ISO 639-3 code)
  • Gender Development Index, an index of gender equality
  • Gordil Airport (IATA code), in the Central African Republic
  • Gross domestic income, the total income within a state
  • Los Guerreros del Infierno, a Mexican professional wrestling stable