AIGI
| Acronym | Definition |
|---|---|
| AIGI | Assistant Inspector General for Investigations (US government) |
| AIGI | Changsha Active Ingredients Group, Inc. (tea exports; China) |
| AIGI | Adair International Oil and Gas, Inc. |
| AIGI | Association Internationale de Géologie de l'Ingénieur (French: International Association of Engineering Geology; est. 1964) |
| AIGI | Australian Internet Growth Index |