GDI
- Baka language
- GDI Integrated Facility Services
- Gabriel Dumont Institute
- Gardner Denver
- Gasoline direct injection
- Gay Doctors Ireland
- Geena Davis Institute on Gender in Media
- Gender Development Index
- General Directorate of Intelligence
- Girl Develop It
- Global Disinformation Index
- Gordil Airport
- Gottlieb Duttweiler Institute
- Graphics Device Interface
- Gross domestic income
- Guanosine nucleotide dissociation inhibitor
- Gulf Drilling International
- Los Guerreros del Infierno