GDI

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
 * 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